A Modeling Study of Tropospheric Ozone and its Precursors in Winter–Spring Arctic Outflow By Amy J. Hamlin A DISSERTATION Submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY (Engineering-Environmental) MICHIGAN TECHNOLOGICAL UNIVERSITY April 2002 This dissertation, “A Modeling Study of Tropospheric Ozone and its Precursors in Winter–Spring Arctic Outflow,” is hereby approved in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in the field of EngineeringEnvironmental. PROGRAM Engineering-Environmental Dr. Richard E. Honrath, Dissertation Advisor Dr. John C. Crittenden, Program Chair Date Abstract The purpose of this study is to determine the impact of winter–spring arctic outflow events on the budgets of tropospheric NOx and ozone over the North Atlantic Ocean. Arctic air contains elevated levels of peroxyacetyl nitrate (PAN) and non-methane hydrocarbons during the winter–spring period; as this air flows southward, it subsides and experiences an increase in temperature, resulting in release of NOx through thermal decomposition of PAN. In combination with increased ultraviolet radiation as the air flows south, NOx release results in the potential for net photochemical ozone production. An updated version of the NCAR Master Mechanism, a detailed, explicit photochemical model, is applied to trajectories representative of arctic outflow for the months of January through May. Revisions were made to the gas-phase mechanism in small increments to determine the effect of each set of revisions on simulated levels of NOx and O3 . To determine the impact of accumulated pollutants in arctic air, two simulations are run for each trajectory, with different initial levels of PANs (PAN and its homologs). In the first simulation, the initial levels of PANs are typical for that month in arctic air; in the second, initial [PANs] are set equal to zero. The difference between these simulations reflects the effect of the elevated levels of PAN present in arctic air. This difference is used to estimate the flux of NOx and O3 to the North Atlantic region resulting from arctic outflow. The mechanism revisions which have the largest effect on the average levels of NOx and O3 are the photolysis, peroxy radical, and PAN reactions. In comparison to the original mechanism, the overall net effect of including all the revisions was a 10.3% and 0.3% decrease in the average levels of NOx and O3 respectively, and a 38% decrease (0.35 ppb/d) in the average net rate of ozone production. However, the effect of individual revision subsets had a much larger effect as they have opposing effects and counteract each other. The peroxy radical revisions had the largest effect on the level of NOx , increasing the average level by 24% over the original mechanism. For O3 , the photolysis revisions had the largest effect, decreasing the average level by 1% and reducing the net rate of ozone iii production by 0.5 ppb/day, a 49% reduction. The results indicate that revising only a few reactions may be worse than not revising any at all. Therefore, it is important that the impact of revisions to individual (or a family of) reactions are clearly understood, so that possible bias in calculated results can be avoided. During simulations of arctic outflow, peroxyacetyl nitrate (PAN) mixing ratios drop by up to 270 pptv, increasing NOx levels up to 120 pptv. However, the released NOx is quickly destroyed by efficient NOx loss reactions leading to formation of HNO3 and, to a lesser extent, nitroaromatic compounds. As a result of elevated NOx , O3 levels are increased. The net impact resulting from elevated levels of PANs in the winter–spring Arctic on the budget of O3 over the North Atlantic is estimated to be less than 712 Gg O3 /month. While this source is similar in magnitude to estimates of ozone produced from aircraft emissions, both are small in comparison to the export of ozone from North America. In conclusion, while elevated levels of pollutants in arctic outflow increase the levels of NOx and O3 in the North Atlantic region, on a seasonal basis the impact on the budgets of NOx and O3 in this region is small. iv Acknowledgments I wish to extend my gratitude to everyone who has contributed to this work. In particular I would like to thank my graduate advisor, Dr. Richard Honrath, for his guidance and support throughout this research. In addition, I would also like to thank the other members of my graduate advisory committee—Dr. Gregg Bluth, Dr. Sarah Green, and Dr. Alex Mayer. I am grateful to Sasha Madronich (National Center for Atmospheric Research) for providing his photochemical model, the NCAR Master-Mechanism and to Jonathan Williams (Max-Planck Institute for Chemistry) for sharing improvements he made to the Master-Mechanism. I thank Arve Kylling (Norwegian Institute for Air Research) for supplying his radiative transfer models Phodis-Version 0.30 and Phodis-Version-0.40. I thank the National Oceanic and Atmospheric Administration, Michigan Technological University, and the Charles DeVlieg Foundation for financial support. The students, faculty, and staff have made my experiences at Michigan Tech enjoyable and they will not be forgotten, thank you. A very special thank you goes to my family for their support, their encouragement, and their belief in my abilities. v Contents Abstract iii Acknowledgments v List of Figures ix List of Tables xiii 1 2 Introduction 1 1.1 Objective 1.2 Dissertation Overview : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 4 4 Effect of New Photochemical Rate Parameters on Simulated NOx and O3 6 2.1 Introduction 6 2.2 Model Description 2.3 Model Revisions and Their Effect on NOx and O3 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 7 : : : : : : : : : : : : : 11 2.3.1 Photolysis Revisions : : : : : : : : : : : : : : : : : : : : : : : : 12 2.3.2 Inorganic Revisions : : : : : : : : : : : : : : : : : : : : : : : : 16 2.3.3 Organic Reactions : : : : : : : : : : : : : : : : : : : : : : : : : 20 2.3.3.1 Unsubstituted Hydrocarbons : : : : : : : : : : : : : : 21 2.3.3.2 Radicals : : : : : : : : : : : : : : : : : : : : : : : : : 23 2.3.3.3 Oxygen Containing Organic Compounds vi : : : : : : : : 36 2.3.4 2.4 3 Nitrogen Containing Organic Compounds : : : : : : : 39 2.3.3.5 Aromatic Compounds : : : : : : : : : : : : : : : : : : 43 : : : : : : : : : : : : : : : : : : : : : 48 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 54 Comparison of Revisions Conclusions Impact of Winter–Spring Arctic Outflow on the NOx and O3 Budgets of the North Atlantic Troposphere 56 3.1 Model Description 57 3.2 Results and Discussion : : : : : : : : : : : : : : : : : : : : : : : : : : : 65 3.2.1 : : : : : : : : : : : : : : : : : : : : : : : : : : 65 3.3 4 2.3.3.4 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Nitrogen Oxides 3.2.1.1 Sources of NOx 3.2.1.2 Sinks of NOx : : : : : : : : : : : : : : : : : : : : : 65 : : : : : : : : : : : : : : : : : : : : : : 70 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 79 3.2.2 Ozone 3.2.3 Flux of NOx and O3 Summary and Conclusions : : : : : : : : : : : : : : : : : : : : : : : : 86 : : : : : : : : : : : : : : : : : : : : : : : : : 93 Summary and Conclusions 95 References 98 A Chemical Codes 111 B Mechanism Revisions: Discussion 157 B.1 Non-Troe Reactions B.1.1 B.1.2 : : : : : : : : : : : : : : : : : : : : : : : : : : : : Inorganic Chemistry : : : : : : : : : : : : : : : : : : : : : : : : B.1.1.1 Odd Oxygen B.1.1.2 Odd Hydrogen B.1.1.3 Inorganic Nitrogen Species Organic Reactions B.1.2.1 158 158 : : : : : : : : : : : : : : : : : : : : : : 158 : : : : : : : : : : : : : : : : : : : : : 158 : : : : : : : : : : : : : : : 159 : : : : : : : : : : : : : : : : : : : : : : : : : 159 Unsubstituted Hydrocarbons vii : : : : : : : : : : : : : : 159 B.1.2.2 Alkyl Radicals B.1.2.3 Peroxy Radical Reactions B.1.2.4 Alkoxy Radicals B.1.2.5 Oxygen Containing Organics B.1.2.6 Nitrogen Containing Organics B.1.2.7 Aromatics : : : : : : : : : : : : : : : : : : : : : 160 : : : : : : : : : : : : : : : : 160 : : : : : : : : : : : : : : : : : : : : 168 : : : : : : : : : : : : : : 171 : : : : : : : : : : : : : 174 : : : : : : : : : : : : : : : : : : : : : : : : 178 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 183 B.3 Photolysis : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 183 B.3.1 Ox : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 184 B.3.2 Hydroperoxides B.3.3 Odd Nitrogen B.3.4 Carbonyls B.2 Troe Reactions B.3.5 : : : : : : : : : : : : : : : : : : : : : : : : : : 184 : : : : : : : : : : : : : : : : : : : : : : : : : : : 186 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 198 : : : : : : : : : : : : : : : : : : : : : : : 198 : : : : : : : : : : : : : : : : : : : : : : : : : 211 B.3.4.1 Aldehydes : B.3.4.2 Ketones B.3.4.3 Unsaturated Carbonyls Acids : : : : : : : : : : : : : : : : : 214 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 215 C Mechanism Revisions: Tables 216 viii List of Figures 2.1 Forward isentropic trajectory along which simulations were performed : : 9 2.2 Effect of photolysis revisions on NOx levels : : : : : : : : : : : : : : : : 14 2.3 Effect of photolysis revisions on O3 levels : : : : : : : : : : : : : : : : : 14 2.4 Effect of inorganic revisions on NOx levels : : : : : : : : : : : : : : : : 16 2.5 Effect of inorganic revisions on O3 levels : : : : : : : : : : : : : : : : : 17 2.6 Effect of inorganic nitrogen revisions on NOx levels : 2.7 Effect of inorganic nitrogen revisions on O3 levels 2.8 Effect of inorganic nitrogen revisions on the levels of NO3 : : : : : : : : 19 2.9 Effect of inorganic nitrogen revisions on the levels of N2 O5 : : : : : : : : 19 : : : : : : : 20 2.11 Effect of revisions to unsubstituted hydrocarbon reactions on levels of NOx 21 2.12 Effect of revisions to unsubstituted hydrocarbon reactions on O3 levels : : 22 2.13 Effect of revisions to peroxy radical reactions with NO on NOx levels : : 25 : : : 26 : : : : : : : : : : : 18 : : : : : : : : : : : : : 18 2.10 Effect of inorganic nitrogen revisions on the levels of HNO3 2.14 Effect of revisions to peroxy radical reactions with NO on O3 levels 2.15 Effect of revisions to peroxy radical reactions with HO2 on NOx levels 2.16 Effect of revisions to peroxy radical reactions with HO2 on O3 levels : : 27 : : : 27 2.17 Effect of revisions to peroxy radical reactions with NO3 on NOx levels : : 29 : : : 30 : : : : 32 : : : : : 32 2.18 Effect of revisions to peroxy radical reactions with NO3 on O3 levels 2.19 Effect of revisions to peroxy radical cross reactions on NOx levels 2.20 Effect of revisions to peroxy radical cross reactions on O3 levels ix 2.21 Effect of revisions to peroxy acyl radical reactions on PAN levels : : : : : 33 2.22 Effect of revisions to peroxy acyl radical reactions on peroxyacetyl radical levels : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 2.23 Effect of revisions to peroxy acyl radical reactions on NOx levels 2.24 Effect of revisions to peroxy acyl radical reactions on O3 levels 34 : : : : : 35 : : : : : : 35 2.25 Effect of revisions to peroxy acyl nitrate reactions on PAN levels : : : : : 40 2.26 Effect of revisions to peroxy acyl nitrate reactions on NOx levels : : : : : 41 2.27 Effect of revisions to peroxy acyl nitrate reactions on peroxyacetyl radical levels : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 2.28 Effect of revisions to peroxy acyl nitrate reactions on O3 levels : : : : : : 42 : : : : : : : : 43 : : : : : : : : : 44 : : : : : : : : : : : : : 45 2.29 Effect of revisions to alkyl nitrate reactions on NOx levels : 2.30 Effect of revisions to alkyl nitrate reactions on O3 levels : 2.31 Effect of aromatic revisions on nitrophenol levels 2.32 Effect of aromatic revisions on dinitrophenol levels : : : : : : : : : : : : 45 : : : : : : : : : : : : : : : : 46 : : : : : : : : : : : : : : : : : 46 : : : : : : : : : : : : : : : : : : 49 : : : : : : : : : : : : : : : : : : : 49 2.33 Effect of aromatic revisions on NOx levels : 2.34 Effect of aromatic revisions on O3 levels : 2.35 Effect of revision subsets on NOx levels 2.36 Effect of revision subsets on O3 levels 41 2.37 Effect of adding revision subsets on O3 levels : : : : : : : : : : : : : : : 2.38 Effect of adding revision subsets on NOx levels : : : : : : : : : : : : : : 2.39 Effect of revising only a few reactions within each subset on NOx levels 51 51 : 53 : : 53 : : : : : : : : : : : : : : : : : : : : : : : : : : : : 59 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 60 2.40 Effect of revising only a few reactions within each subset on O3 levels 3.1 January Trajectories 3.2 March Trajectories 3.3 May Trajectories : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 61 3.4 NOy Speciation : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 66 3.5 Comparison of NOy groups as sources and sinks of NOx x : : : : : : : : : 68 3.6 Mechanism of benzene oxidation : : : : : : : : : : : : : : : : : : : : : 74 3.7 Mechanism of phenol oxidation : : : : : : : : : : : : : : : : : : : : : : 76 3.8 Average net rates of NOx production and destruction for March and May high-PAN-decomposition simulations 3.9 : : : : : : : : : : : : : : : : : : : Ozone mixing ratios for the January, March, and May simulations : : : : 80 81 3.10 Effect of extending the March-high-PAN-decomposition simulation on NOy speciation : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 88 3.11 Effect of extending the March-high-PAN-decomposition simulation on the levels of O3 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 88 3.12 Effect of extending the May high-PAN-decomposition simulation on NOy speciation : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : B.1 CH3 OOH Absorption Cross Section : : : : : : : : : : : : : : : : : : : : 187 : : : : : : : : : : : : : : : : : : : : : : 188 : : : : : : : : : : : : : : : : : : : : : : : : : : : : 188 B.2 NO2 Absorption Cross Section : B.3 NO2 Quantum Yield B.4 NO3 Absorption Cross Section : : : : : : : : : : : : : : : : : : : : : : : B.5 NO3 QY: Johnston et al., 1996 vs Madronich B.6 N2 O5 Quantum Yield 89 189 : : : : : : : : : : : : : : : 190 : : : : : : : : : : : : : : : : : : : : : : : : : : : 191 B.7 HNO2 Absorption Cross Section : : : : : : : : : : : : : : : : : : : : : : 192 B.8 HNO4 Absorption Cross Section : : : : : : : : : : : : : : : : : : : : : : 193 B.9 PAN Absorption Cross Section : : : : : : : : : : : : : : : : : : : : : : 194 B.10 Methyl Nitrate Absorption Cross Section, logarithmic B.11 Ethyl Nitrate Absorption Cross Section : : : : : : : : : : : 195 : : : : : : : : : : : : : : : : : : 195 B.12 Ethyl Nitrate Absorption Cross Section, logarithmic : : : : : : : : : : : : 196 B.13 Propyl Nitrate Absorption Cross Section, logarithmic : : : : : : : : : : : 197 B.14 Propyl Nitrate Absorption Cross Section, logarithmic : : : : : : : : : : : 197 : : : : : : : : : : : : : : : : : 199 B.15 Methyl Nitrite Absorption Cross Section B.16 CH2 O Absorption Cross Section as a Function of Temperature xi : : : : : : 200 B.17 CH2 O Absorption Cross Section : : : : : : : : : : : : : : : : : : : : : : 200 B.18 CH2 O Channel A Quantum Yield : : : : : : : : : : : : : : : : : : : : : 201 B.19 CH2 O Channel B Quantum Yield : : : : : : : : : : : : : : : : : : : : : 202 B.20 CH3 CHO Absorption Cross Section : : : : : : : : : : : : : : : : : : : : 203 B.21 CH3 CHO Absorption Cross Section : : : : : : : : : : : : : : : : : : : : 203 : : : : : : : : : : : : : : : : : : : : : : : : : 204 B.22 CH3 CHO Quantum Yield B.23 Propanal (d031) Absorption Cross Section : B.24 Propanal (d031) Quantum Yield : : : : : : : : : : : : : : : : 205 : : : : : : : : : : : : : : : : : : : : : : 205 : : : : : : : : : : : : : : : : 206 B.26 n-butanal (d041) Quantum Yield, Channel A : : : : : : : : : : : : : : : 207 B.27 n-butanal (d041) Quantum Yield, Channel B : : : : : : : : : : : : : : : : 207 : : : : : : : : : : : : : : : : 208 : : : : : : : : : : : : : : : : : : : : : 209 B.25 n-Butanal (d041) Absorption Cross Section B.28 i-Butanal (d042) Absorption Cross Section B.29 Iso-butanal (d042) Quantum Yield B.30 CHOCHO Absorption Cross Section : : : : : : : : : : : : : : : : : : : 209 B.31 CH3 C(O)CHO Absorption Cross Section : : : : : : : : : : : : : : : : : 210 B.32 Acetone (k031) Absorption Cross Section : : : : : : : : : : : : : : : : : 211 : : : : : : : : : : : : : : : : : : : : : : : : : : 212 B.33 Acetone Quantum Yield B.34 2-Butanone (k041) Absorption Cross Section : : : : : : : : : : : : : : : 212 B.35 3-pentanone (k052) Absorption Cross Section : : : : : : : : : : : : : : : 213 : : : : : : : : : : : : : : : : : : : : 214 B.36 Acrolein Absorption Cross Section xii List of Tables 2.1 Initial Conditions 2.2 Summary of Photolysis Cross-Sections : : : : : : : : : : : : : : : : : : 13 2.3 Summary of Photolysis Quantum Yields : : : : : : : : : : : : : : : : : : 15 2.4 Alkyl and Alkoxy Radical Reactions : : : : : : : : : : : : : : : : : : : : 23 2.5 Alkyl Peroxy Radical Rate Constants for Reaction with HO2 2.6 Carbonyl Reaction Revisions 2.7 Alcohol Reactions 2.8 Hydroperoxide Reactions 2.9 Revised Aromatic Reactions : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 28 : : : : : : : : : : : : : : : : : : : : : : : 37 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 38 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 2.10 Change in Mean NOx and O3 Levels for each Group of Revisions : : : : : 2.11 Rates of Ozone Production and Destruction for each Group of Revisions 38 47 48 : 50 : : : : : : : : : : : : : 52 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 63 2.12 Important Reactions in Each Group of Revisions 3.1 Initial Conditions 3.2 Initial Conditions Continued 3.3 Ozone Production Rates 3.4 Ozone Loss Rates 3.5 Source of NOx and O3 to North Atlantic Resulting from elevated PANs in the Arctic 10 : : : : : : : : : : : : : : : : : : : : : : : : 64 : : : : : : : : : : : : : : : : : : : : : : : : : : 83 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 85 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 3.6 Comparison of NOx Sources to the North Atlantic Troposphere 3.7 Comparison of O3 Sources to the North Atlantic Troposphere xiii 86 : : : : : : 90 : : : : : : : 91 A.1 Functional Groups : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 111 A.2 Chemical Codes: 0031–1081 : : : : : : : : : : : : : : : : : : : : : : : 113 A.3 Chemical Codes: 1a21–1e71 : : : : : : : : : : : : : : : : : : : : : : : : 114 A.4 Chemical Codes: 1f14–1m33 : : : : : : : : : : : : : : : : : : : : : : : 115 A.5 Chemical Codes: 1n11–1o54 : : : : : : : : : : : : : : : : : : : : : : : 116 A.6 Chemical Codes: 1o56–1v34 : : : : : : : : : : : : : : : : : : : : : : : 117 A.7 Chemical Codes: 2011–2d49 : : : : : : : : : : : : : : : : : : : : : : : 118 A.8 Chemical Codes: 2d50–2k71 : : : : : : : : : : : : : : : : : : : : : : : 119 A.9 Chemical Codes: 2l11–2nA1 : : : : : : : : : : : : : : : : : : : : : : : 120 A.10 Chemical Codes: 2o11–2p31 : : : : : : : : : : : : : : : : : : : : : : : 121 A.11 Chemical Codes: 2r61–3d48 : : : : : : : : : : : : : : : : : : : : : : : : 122 A.12 Chemical Codes: 3d51–3n49 : : : : : : : : : : : : : : : : : : : : : : : 123 A.13 Chemical Codes: 3n51–3u53 : : : : : : : : : : : : : : : : : : : : : : : 124 A.14 Chemical Codes: 3v21–7dA1 : : : : : : : : : : : : : : : : : : : : : : : 125 A.15 Chemical Codes: 7k32–8k33 : : : : : : : : : : : : : : : : : : : : : : : 126 : : : : : : : : : : : : : : : : : : : : : : : : 127 : : : : : : : : : : : : : : : : : : : : : : : 128 : : : : : : : : : : : : : : : : : : : : : : : : : 129 A.16 Chemical Codes:8k40–8o35 A.17 Chemical Codes: 8o41–BRO A.18 Chemical Codes: C–F142 A.19 Chemical Codes: F21–MECN A.20 Chemical Codes: N–aa33 : : : : : : : : : : : : : : : : : : : : : : : 130 : : : : : : : : : : : : : : : : : : : : : : : : : 131 A.21 Chemical Codes: ad21–ak33 : : : : : : : : : : : : : : : : : : : : : : : : 132 A.22 Chemical Codes: ak40–an55 : : : : : : : : : : : : : : : : : : : : : : : : 133 A.23 Chemical Codes: ao22–av56 : : : : : : : : : : : : : : : : : : : : : : : : 134 A.24 Chemical Codes: b011–dk36 : : : : : : : : : : : : : : : : : : : : : : : 135 A.25 Chemical Codes: dk40–do49 : : : : : : : : : : : : : : : : : : : : : : : 136 A.26 Chemical Codes: do50–en72 : : : : : : : : : : : : : : : : : : : : : : : 137 A.27 Chemical Codes: eo21–gd49 : : : : : : : : : : : : : : : : : : : : : : : 138 A.28 Chemical Codes: gd51–gn55 : : : : : : : : : : : : : : : : : : : : : : : 139 xiv A.29 Chemical Codes: go22–gv62 : : : : : : : : : : : : : : : : : : : : : : : 140 A.30 Chemical Codes: h011–hd62 : : : : : : : : : : : : : : : : : : : : : : : 141 A.31 Chemical Codes: hh51–hnA1 : : : : : : : : : : : : : : : : : : : : : : : 142 A.32 Chemical Codes: ho11–hr62 : : : : : : : : : : : : : : : : : : : : : : : : 143 A.33 Chemical Codes: hr71–ko48 : : : : : : : : : : : : : : : : : : : : : : : : 144 A.34 Chemical Codes: ko50–1v02 : : : : : : : : : : : : : : : : : : : : : : : 145 A.35 Chemical Codes: m011–n081 : : : : : : : : : : : : : : : : : : : : : : : 146 A.36 Chemical Codes: nd11–nd81 : : : : : : : : : : : : : : : : : : : : : : : 147 A.37 Chemical Codes: nk23–no46 : : : : : : : : : : : : : : : : : : : : : : : 148 A.38 Chemical Codes: no4A–nu55 : : : : : : : : : : : : : : : : : : : : : : : 149 A.39 Chemical Codes: nv32–oo49 : : : : : : : : : : : : : : : : : : : : : : : 150 A.40 Chemical Codes: oo51–pd56 : : : : : : : : : : : : : : : : : : : : : : : 151 A.41 Chemical Codes: pg21–pn55 : : : : : : : : : : : : : : : : : : : : : : : 152 A.42 Chemical Codes: po22–pv56 : : : : : : : : : : : : : : : : : : : : : : : 153 A.43 Chemical Codes: q011–sw11 : : : : : : : : : : : : : : : : : : : : : : : 154 A.44 Chemical Codes: t0A1–uv31 : : : : : : : : : : : : : : : : : : : : : : : 155 A.45 Chemical Codes: vk21–wo11 : : : : : : : : : : : : : : : : : : : : : : : 156 : : : : : : : : : : : : : : : : : : : : : : : : : : : 161 B.1 Alkyl Radical Updates B.2 Alkyl Peroxy Radical Rate Constants for Reaction with HO2 B.3 Activation Temperatures for Peroxy Radical Self Reactions : : : : : : : 163 : : : : : : : : 166 B.4 Comparison of Alkyl Nitrate Branching Ratios for Reaction with HO : : : 175 : : : : : : : : : : : 179 : : : : : : : : : : : : 181 : : : : : : : : : : : 181 : : : : : : : : : : : : : : : : : : : : : : : : : 182 : : : : : : : : : : : : : : : : : : : : : : : : : : : : 182 B.5 Rate constants for the Reaction of Benzene with OH B.6 Rate Constants for the Reaction of Phenol with OH B.7 Rate Constants for the Reaction of Phenol with NO3 B.8 2-nitrophenol (rv62) + OH B.9 4-nitrophenol + OH B.10 2-nitrophenol (rv62) + NO3 : : : : : : : : : : : : : : : : : : : : : : : : xv 183 B.11 Summary of Photolysis Data : : : : : : : : : : : : : : : : : : : : : : : : B.12 Parameters for the O3 Quantum Yield Equation C.1 Odd Oxygen Reactions C.2 Odd Hydrogen Reactions : : : : : : : : : : : : : : 185 : : : : : : : : : : : : : : : : : : : : : : : : : : 217 : : : : : : : : : : : : : : : : : : : : : : : : : 218 : : : : : : : : : : : : : : : : : : : : : : : 219 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 220 C.3 Inorganic Nitrogen Reactions C.4 Organic Updates 185 C.5 Alkyl Radical Updates : : : : : : : : : : : : : : : : : : : : : : : : : : : C.6 Peroxy radical reaction with NO : : : : : : : : : : : : : : : : : : : : : : 221 222 C.7 Peroxy radical reactions with HO2 : : : : : : : : : : : : : : : : : : : : : 237 C.8 Peroxy radical reactions with NO2 : : : : : : : : : : : : : : : : : : : : : 247 : : : : : : : : : : : : : : : : : : : : : : : : : : : : 250 C.9 Peroxy Radical NO3 C.10 Peroxy radical reaction with methyl peroxy radical : : : : : : : : : : : : 250 : : : : : : : : : : : : : : : : : : : : : : : 267 : : : : : : : : : : : : : : : : : : : : : : : : : : 295 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 296 C.11 Peroxy radical cross reactions C.12 Alkoxy radical reactions C.13 Carbonyls C.14 Oxygenated Organic Updates : : : : : : : : : : : : : : : : : : : : : : : 297 : : : : : : : : : : : : : : : : : : : : : : : : : 298 : : : : : : : : : : : : : : : : : : : : : : : : : : : 299 C.15 Hydroperoxide Reactions C.16 Alkyl Nitrate Updates C.17 Peroxy Acyl Nitrate Updates : : : : : : : : : : : : : : : : : : : : : : : : 300 C.18 Revised Aromatic Reactions : : : : : : : : : : : : : : : : : : : : : : : : 303 : : : : : : : : : : : : : : : : : : : : : : : : : : : 304 C.19 Troe Reaction Updates xvi Chapter 1 Introduction Ozone is an important trace gas in the troposphere. Its photolysis is the dominant source of the hydroxyl radical (OH), which controls the lifetime of many compounds in the troposphere, including methane, CO, and non-methane hydrocarbons (NMHC). As a greenhouse gas, ozone has the potential to impact climate [Fishman et al., 1979]. Additionally, as a strong oxidant, ozone can impair the health of plants and animals. A major focus of atmospheric chemistry studies has been to understand the processes controlling the production and destruction of tropospheric ozone. These processes include: photochemical production and destruction, transport, and deposition. The sources of tropospheric ozone include stratosphere-troposphere exchange (STE) and photochemical production. It was originally believed that tropospheric ozone was controlled by transport from the stratosphere due to the observed gradient of ozone with altitude. However, with the occurrence of a new type of “smog” in the Los Angeles basin, a mechanism for photochemical ozone production was proposed in the 1950’s. Today, both processes are considered important, with photochemical ozone production dominating in photoactive regions of the atmosphere [Lelieveld and Dentener, 2000]. Global 3-D models [Wang 1 2 et al., 1998b] suggest that an overlap in the seasonal cycles of photochemical processes (peaking in late spring) and STE (peaking in late winter) results in the spring peak in ozone levels observed at remote northern extratropical surface sites. This study investigates the photochemical production of ozone in the North Atlantic troposphere. Three components are required for the photochemical production of tropospheric ozone: nitrogen oxides (NOx = NO+NO2 ), volatile organic compounds (VOC), and light (h ). The overall reaction schematic for ozone formation is: VOC + NOx + h ! O3 + other products (1.1) where other products include peroxyacetyl nitrate (PAN), alkyl nitrates, HNO3, CO2, and H2 O. In the remote troposphere, ozone production is dependent on the level of NOx . Levels of NOx in the remote troposphere are typically low, partially due to its short lifetime of 1-2 days, which limits long-range transport. An important NOx reservoir is peroxyacetyl nitrate (PAN), formed by the reaction of NO2 with peroxyacetyl radical. The peroxyacetyl radical is most commonly formed from acetaldehyde (CH3 CHO), acetone (CH3 COCH3 ) and biacetyl (CH3 COCOCH3 ) [Singh, 1987]. In the presence of O2 and NO2 , these compounds can lead to the production of PAN [FinlaysonPitts and Pitts, 1999]. For example, PAN is produced from acetaldehyde in the following reaction sequence: CH3 CHO + OH ! CH3 CO + H2 O (1.2) CH3 CO + O2 + M ! CH3 C(O)OO + M (1.3) CH3 C(O)OO + NO2 + M * ) CH3 C(O)OONO2 + M: (1.4) PAN is stable at low temperatures, and has a lifetime up to several months in the colder regions 3 of the atmosphere, such as the mid to upper troposphere or high latitudes. As a result, PAN can undergo long-range transport from source regions and ultimately release NOx through its thermal decomposition (Reaction -1.4) [Crutzen, 1979; Singh and Hanst, 1981], providing a source of NOx in regions distant from NOx emissions. Moxim et al. [1996] estimate that more than 70% of the NOx over half the area of Northern Hemispheric oceans during late fall through spring is due to thermal decomposition of PAN resulting from anticyclonic subsidence. Previous measurements demonstrate there is a seasonal cycle of a variety of pollutants in the Arctic, including total reactive nitrogen oxides (NOy ) [Honrath and Jaffe, 1992], PAN [Barrie, 1986; Bottenheim and Gallant, 1989; Beine and Krognes, 2000], and hydrocarbons [Solberg et al., 1996a; Laurila and Hakola, 1996; Ariya et al., 1998], with the maximum occurring during the the late winter–early spring. PAN is the dominant form of NOy during late winter–early spring, accounting for 60-80% of NOy [Muthuramu et al., 1994; Ridley et al., 2000]. As arctic air containing elevated levels of PAN flows southward, it subsides and warms [Hamlin, 1995; Honrath et al., 1996], which is expected to result in increased rates of PAN thermal decomposition, releasing NOx . Barrie and Bottenheim [1991] and Honrath and Jaffe [1992] suggest arctic outflow events may significantly impact mid–latitude regions during late winter and spring, possibly contributing to the spring ozone peak observed at remote Northern Hemispheric sites. However, the impact of arctic outflow on the mid-latitude troposphere remains unclear. On one hand, there is evidence for a significant impact. Fenneteaux et al. [1999] document significant enhancement of PAN and NMHC levels at the Tropospheric Ozone Research (TOR) site in Porspoder, France, associated with southward flow of marine air from regions north of 50 N latitude. Honrath et al. [1996] has suggested that elevated levels of NOy , primarily in the form of PAN, may contribute to the 4 spring tropospheric ozone peak observed in the remote Northern Hemisphere. Consistent with this, Herring et al. [1997] observed significant ozone production at Poker Flat, Alaska during spring 1995 and attributed this to the high NOx levels observed (mean 116 pptv). On the other hand, Wang et al. [1998b] concluded that the spring ozone peak is due to a combination of transport of ozone from the stratosphere, which peaks in winter, and tropospheric ozone production, which in the remote atmosphere peaks in late spring, with no contribution from winter accumulation at high latitudes. In this study, we investigate the inconsistency in the role of high-latitude accumulation on the mid-latitude troposphere. 1.1 Objective The objective of this research is to determine the impact of winter-spring arctic outflow events on the NOx and O3 budgets of the North Atlantic troposphere. To achieve this objective, the photochemical evolution within representative arctic outflow events will be simulated using Lagrangian, photochemical box-model simulations. 1.2 Dissertation Overview Chapter 2 describes the revisions made to the gas-phase chemical mechanism and the effect these revisions have on NOx and O3 . Chapter 3 describes the simulations and analyses performed to determine the impact of arctic outflow events on the NOx and O3 budgets of the North Atlantic troposphere. Chapter 4 summarizes the main results and conclusions. The appendices contain a list of coded chemical names, a detailed account of mechanism revisions, and a complete list of the 5 revised reactions and their parameters. Chapter 2 Effect of New Photochemical Rate Parameters on Simulated NOx and O3 2.1 Introduction The ability of photochemical models to accurately simulate the levels of atmospheric chemical species is critically dependent on the gas-phase chemical mechanism. This includes both the composition of the gas-phase mechanism (number of reactions and species, reaction pathways) and the rate parameters (rate constants, temperature and pressure dependencies, quantum yield and cross-sections) for those reactions. Gas-phase mechanisms can be divided into two groups, reduced (or lumped) and explicit (or detailed) [Seinfeld, 1988]. The lumped mechanisms are often used in complex 2-D and global models where many calculations are required. These mechanisms typically simplify the chemistry of volatile organic compounds; grouping similar compounds either by their structure and reactivity 6 7 characteristics (for example, carbon bond types [Gery et al., 1989]) or by their chemical nature (for example, chemical families such as alcohols, carbonyls [Atkinson et al., 1982a; Lurmann et al., 1987; Stockwell et al., 1997; Crassier et al., 2000]). Explicit methods such as those developed by Jenkin et al. [1997] and Madronich and Calvert [1989] include detailed chemistry for each compound. These mechanisms may include hundreds of species and contain thousands of reactions. These mechanisms are particularly useful for box model simulations, as they allow detailed analysis of photochemical pathways and intermediates. Many advances have been made in available kinetic and mechanistic data in recent years (e.g. [Atkinson, 1994; Atkinson, 1997; DeMore et al., 1997; Sander et al., 2000]). The effect of changes to these parameters recommended between 1989 and 2000 are investigated on simulation results obtained using an explicit chemical mechanism, the NCAR Master Mechanism. These changes result in significant changes to the calculated results. The findings described below should be relevant to other models, as the reactions which had the largest effect on the simulated levels of NOx and O3 are included in both explicit and lumped models. Section 2.2 describes the model and the scenario used for these simulations. The revisions made to the mechanism and the effect these revisions have on the simulated levels of NOx and O3 are covered in Section 2.3. 2.2 Model Description The NCAR Master Mechanism of the Gas-Phase Chemistry-Version 2.0, contains nearly 1900 species and 5000 reactions. This full chemical mechanism is reduced for the conditions of a particular situation, based on the species included as initial conditions. For the present study, this photochemical box model was advanced along an isentropic trajectory at 15 minute intervals, 8 providing new positional (latitude, longitude, altitude), and environmental (temperature, humidity) data. The actinic flux was calculated using Phodis Version 0.40 [Kylling, 1995] at every 15 minute time step along the trajectory, using the parameters described by Hamlin and Honrath [2002]. The actinic flux was then used to determine photolysis rate constants using the routine supplied with the NCAR Master Mechanism, JBLOCK. In this study, the effects of revised kinetic and mechanistic parameters were investigated using simulations of southward flowing arctic air. Results of these simulations using the fully updated mechanism are described in Hamlin and Honrath [2002]. The May-high-PAN-decomposition trajectory from Hamlin and Honrath [2002], shown in Figure 2.1, was chosen for these simulations because it produces the largest flux of NOx and O3 to the North Atlantic from elevated levels of PANs (peroxy acyl nitrates) in the arctic winter–spring. In addition, as this is a May trajectory, the actinic flux is higher than in the months of January–April, making the actinic flux more representative of low- to mid-latitude regions than the other simulations. Initial conditions for these simulations, listed in Table 2.1, were based on previous measurements of arctic or subarctic air and include N2 , O2 , H2 , O3 , CO, CO2 , CH4, C2 –C5 NMHC, benzene, NOx , HONO, HNO3, PAN, C3 –C5 alkyl nitrates. The simulations analyzed here are unique in some respects (NOy speciation, high ozone, and low temperatures). While the levels of PAN (300 ppt) in the arctic winter–spring are typical of rural to remote regions (see Finlayson-Pitts and Pitts [1999] and references therein), the fraction of the total NOy they represent (76%) is high. Additionally, the levels of alkyl nitrates (sum of C3 -C5 50 ppt) is somewhat higher than observed in other regions, representing 13% of NOy in arctic air. The large fraction of NOy that PAN and alkyl nitrates represent is partially due to the low 9 12 Altitude (km) 10 8 1 6 2 4 3 2 0 -100 45 -50 Longitude 0 50 90 45 80 70 -90 1 60 0 2 -45 50 40 3 30 4 5 Figure 2.1 Forward isentropic trajectory along which simulations were performed. This trajectory originates on May 8, 1990, 0Z at 70 N, 80 W. Each 12-hr interval is identified with a (+). Numerals indicate days of transport. 10 Table 2.1 Initial Conditions. Compound N2 O2 H2 O3 CO CO2 CH4 C2 H2 C2 H4 C2 H6 C3 H6 C3 H8 n-butane i-butane n-pentane i-pentane Mixing Ratio .7808*air density .2095*air density 0.5 ppm 73 ppb 170 ppb 360 ppm 1.8 ppm 0.3 ppb 0.1 ppb 1.5 ppb 0.03 ppb 0.3 ppb 0.07 ppb 0.03 ppb 0.02 ppb 0.01 ppb Notes Compound Mixing Ratio Notes a C6 H6 0.15 ppb f–k a NOx 19 ppt l a HONO 6 ppt m b HNO3 16 ppt n c–d PAN 300 ppt o c methyl nitrate 0 p c ethyl nitrate 0 q e–k 1-propyl nitrate 3.3 ppt r–s e–k 2-propyl nitrate 12.4 ppt r–s e–k 1-butyl nitrate 1.7 ppt r–s e–g, j–k 2-butyl nitrate 18.4 ppt r–s e–k pentyl nitrate 1.0 ppt r–s e–j 3-methyl-2-pentyl nitrate 4.8 ppt r–s f–j 2-pentyl nitrate 5.4 ppt r–s f–j 3-pentyl nitrate 4.3 ppt r–s f–j 2-methyl-1-pentyl nitrate 0.8 ppt r–s a) Based on the composition of air [Graedel and Crutzen, 1993]. b) Oltmans [1993]. Ozone level is altitude dependent. c) Derwent et al. [1998]. d) Novelli et al. [1998]. e) Solberg et al. [1996b], non-ozone depletion events. f) Solberg et al. [1996a]. g) Laurila and Hakola [1996]. h) Ariya et al. [1998]. i) Jobson et al. [1994]. j) Doskey and Gaffney [1992]. k) Hov et al. [1984]. l) Estimated from Jaffe et al. [1991], Honrath and Jaffe [1992], Weinheimer et al. [1994], Beine et al. [1996], Rohrer et al. [1997], and Beine et al. [1997a]. This value is consistent with NOx observed in the Arctic during late spring [Ridley et al., 2000], but higher than Ridley’s measurements prior to arctic sunrise. (Model results are insensitive to the initial NOx level.) m) Li [1994], light period. n) Estimated from Bottenheim et al. [1993] period 1 and Bottenheim and Gallant [1989]. Loss reactions of HNO3 are negligible in these simulations, so model results are insensitive to the initial level of HNO3 . o) Estimated from Bottenheim and Gallant [1989], Bottenheim et al. [1993], Beine et al. [1997b], and Beine and Krognes [2000]. High values were given more weight to provide an upper limit for NOx release. For this reason and to allow for comparisons of photochemical processes by month, seasonal variations were not included. p) There are no reported measurements of methyl nitrate in arctic or subarctic air. q) Measurements of ethyl nitrate have not been reported for the arctic or subarctic. r) Leaitch et al. [1994]. s) Muthuramu et al. [1994]. level of NOx observed. NOx levels are typically low in aged airmasses due to rapid oxidation of NOx . Another characteristic of the aged air arctic mass is that the speciation of the volatile organic compounds present in the Arctic during winter-spring is more heavily weighted towards the less reactive hydrocarbons such as acetylene, ethane, benzene, ethene, and propane than is the case for airmasses with more recent emissions. Another unique characteristic of this simulation is the high initial level of ozone. Ozone levels vary greatly with altitude. Levels in the winter–spring Arctic range from 35 ppb in the lower free troposphere to 80 ppb in the upper free troposphere. As this 11 particular trajectory originates near 6 km, the initial level of ozone used is high compared to remote and rural regions from the surface to mid-tropospheric sites. Additionally, the temperature is low in the high-latitude free troposphere, which permits transport of reservoir species such as PAN. The unique characteristics of the scenario simulated in this work had some effects on the results below. In particular, the importance of ozone photolysis and alkyl nitrates were emphasized as high levels of these species increase their loss rates. However, in most respects these simulations are a useful model of the chemical evolution of aging polluted air and therefore applicable to other situations as well. 2.3 Model Revisions and Their Effect on NO and O3 x Since the NCAR Master Mechanism-Version 2.0 was created in the late 1980’s, improvements have been made to the available kinetic data. Kinetic data have been evaluated by several groups, including the International Union of Pure and Applied Chemistry (IUPAC) subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry [Atkinson et al., 1992b], the Statewide Air Pollution Research Center and Department of Soil and Environmental Sciences, University of California, Riverside [Atkinson, 1994], and the NASA Panel for Data Evaluation [DeMore et al., 1997; Sander et al., 2000]. These reviews form the basis for the revisions made to the Master Mechanism. Additionally, the peroxy radical reactions have been extensively revised based on the work of Kirchner and Stockwell [1996]. Altogether, more than 3200 reactions have been revised in this work. These revisions consist primarily of new rate parameters; however, a number of changes have also been made to the mechanism including the addition of several new reactions. Revisions have been made to photolysis reactions, inorganic reactions and a variety of organic reactions. As 12 halogen chemistry is not expected to play a significant role in the free troposphere, halogen reactions were not revised. Revisions to the mechanism were made in small increments in order to determine their individual effects on simulated levels of NOx and O3 . In this work we focus on the impact of these revisions on levels of NOx and O3, because of ozone’s role in controlling the oxidizing capacity of the atmosphere and of NOx ’s role in controlling the production of ozone in the remote atmosphere. The revisions examined in detail for their effect on NOx and O3 include reactions in the following categories: photolysis of nitrogen and oxygen containing compounds, odd oxygen, odd hydrogen, odd nitrogen, unsubstituted hydrocarbons, organic radicals, oxygen containing organic compounds, nitrogen containing organic compounds, and aromatic compounds. Some of these groups have been further subdivided in order to identify which revisions have the greatest effect on simulated levels of NOx and O3 . 2.3.1 Photolysis Revisions Updates to the photolysis reactions were limited to absorption cross sections and quantum yields for the nitrogen and oxygen containing compounds which were treated explicitly by Madronich and Calvert [1989]. A list of species evaluated is shown in Tables 2.2 and 2.3. The absorption cross sections and quantum yields for each compound were compared to values recommended by DeMore et al. [1997] and Sander et al. [2000] to assess whether there has been a significant change in the photolysis data since the NCAR Master Mechanism-Version 2.0 [Madronich and Calvert, 1989] was created. The reviews by Atkinson [1994] and Atkinson et al. [1992b] were used, in that order of precedence, for compounds that were not addressed by DeMore et al. [1997] or Sander et 13 Table 2.2 Summary of Photolysis Cross-Sections. Compound O3 H2 O2 methylhydroperoxide NO2 NO3 N2 O5 HONO HNO3 HNO4 HCHO Cross Section Madronich and Calvert [1989] a DeMore et al. [1997] Madronich and Calvert [1989] b;c Stockwell et al. [1997] Stockwell et al. [1997] Madronich and Calvert [1989] b Stockwell et al. [1997] Stockwell et al. [1997] Madronich and Calvert [1989] b < 300 Madronich and Calvert [1989] 300 DeMore et al. [1997] Martinez et al. [1992] d Martinez et al. [1992] d Martinez et al. [1992] d Martinez et al. [1992] d Madronich and Calvert [1989] c Stockwell et al. [1997] d Martinez et al. [1992] d Martinez et al. [1992] d Martinez et al. [1992] d Madronich and Calvert [1989] d Madronich and Calvert [1989] acetaldehyde propanal 1-butanal 1-methyl propanal glyoxal methyl glyoxal acetone 2-butanone 3-pentanone biacetyl acrolein a Recommended by Sander et al. [2000] b Recommended by DeMore et al. [1997] c Recommended by Atkinson et al. [1992b] d Recommended by Atkinson [1994] al. [2000], such as C3 and larger organic compounds. Photolysis data for many compounds are still not available. In these cases, the cross-sections and quantum yields used by Madronich and Calvert [1989] were retained. The revisions made to the photolysis reactions result in lower levels of NOx and O3 as shown in Figures 2.2 and 2.3. The mean levels of NOx and O3 are 8.4% and 1.0% lower, respectively, than the mean NOx and O3 levels simulated using the original mechanism,the NCAR Master MechanismVersion 2. Of the changes made to the photolysis reactions, alteration of the temperature dependent expression for calculating the quantum yield of ozone had the greatest effect, accounting for nearly 14 NOx Concentration in ppt 80 Madronich and Calvert, Version II, 1989 Ozone Photolysis All Photolysis Revisions 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.2 Effect of photolysis revisions on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised O 3 photolysis. The long dashed line indicates the sum of all the revisions to the photolysis reactions. Ozone 74 Concentration in ppb 72 70 68 66 64 0 Madronich and Calvert, Version II, 1989 Ozone Photolysis All Photolysis Revisions 1 2 3 Time in Days 4 5 6 Figure 2.3 Effect of photolysis revisions on O3 levels. Refer to Figure 2.2 for descriptive information. 15 Table 2.3 Summary of Photolysis Quantum Yields. Compound O3 H2 O2 methylhydroperoxide NO2 NO3 N2 O5 HONO HNO3 HNO4 HCHO acetaldehyde propanal 1-butanal 1-methyl propanal glyoxal methyl glyoxal acetone 2-butanone 3-pentanone biacetyl acrolein Quantum Yield Sander et al. [2000] unity, Madronich and Calvert [1989] a unity, Madronich and Calvert [1989] a Madronich and Calvert [1989] a Johnston et al. [1996] a Madronich and Calvert [1989] a unity, Madronich and Calvert [1989] b unity, Madronich and Calvert [1989] b unity, Madronich and Calvert [1989] a Madronich and Calvert [1989] a Madronich and Calvert [1989] c Atkinson [1994] Madronich and Calvert [1989] Atkinson [1994] Madronich and Calvert [1989] b Atkinson et al. [1992b] Stockwell et al. [1997] c unity, Madronich and Calvert [1989] unity, Madronich and Calvert [1989] Madronich and Calvert [1989] c Madronich and Calvert [1989] a Recommended by DeMore et al. [1997] b Recommended by Atkinson et al. [1992b] c Recommended by Atkinson [1994] the entire change in the levels of NOx and O3 . Including the “tail” for the quantum yield of O(1D) from the photolysis of ozone between 310 and 330 nm significantly increased the ozone rate of photolysis. In comparison to the original mechanism, this change to the ozone quantum yield decreases the level of NOx and O3 averaged over the duration of the simulation by 8.7% and 1.0%, respectively. Photolysis reactions have been added for PAN and a number of alkyl nitrates. These changes are discussed in Section 2.3.3.4 and are therefore not included in the total photolysis revisions indicated in Figures 2.2 and 2.3. 16 NOx 80 Madronich and Calvert, Version II, 1989 Ox HOx NOy All Inorganic Revisions Concentration in ppt 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.4 Effect of inorganic revisions on NOx levels. The solid line indicates the levels simulated using the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised reaction rate constants for the inorganic reactions of odd oxygen compounds. The dashed line uses the Master Mechanism with revised inorganic reactions for odd hydrogen compounds. The dot-dashed line uses the Master Mechanism with revised inorganic reactions for odd nitrogen compounds. The long dashed line indicates the sum of all the revisions to inorganic chemistry. 2.3.2 Inorganic Revisions Revisions to the chemistry of inorganic species were based on the recommendations of DeMore et al. [1997]. Reactions of odd oxygen (Ox ), O(1D), odd hydrogen (HOx ), and odd nitrogen species (NOy ) were examined. Over 30 inorganic reactions were revised; a complete list of the reactions examined and revised is included in Appendix B.1.1. As shown in Figures 2.4 and 2.5 the revisions made to reactions of odd nitrogen species have a significant effect on the level of NOx and a minimal effect on the level of O3 , while revisions made to the inorganic reactions of Ox and HOx have no noticeable effect. The revisions made to the inorganic nitrogen reactions which have the largest effect on the levels of NOx (Figure 2.6) and O3 (Figure 2.7) include the following: 1) Removal of the NO3 17 O3 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Ox HOx NOy All Inorganic Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.5 Effect of inorganic revisions on O3 levels. Refer to Figure 2.6 for descriptive information. thermal decomposition reaction, which is no longer believed to occur in the atmosphere [DeMore et al., 1997]; 2) A change in the troe rate parameters for the reaction of NO2 with OH to reflect the recommendations of DeMore et al. [1997], and 3) An increase in the N2 O5 hydrolysis rate constant using the upper-limit gas-phase rate constant recommended by DeMore et al. [1997]. While the rate constant is modeled as a gas-phase process, it is consistent with values used to simulate both homogeneous and heterogeneous processes, as discussed in Section 3.2.1.2. Removal of the NO3 thermal decomposition reaction results in higher levels of NO3 (Figure 2.8) at night. This increases the formation rate of N2 O5 (Figure 2.9) and the conversion of NOx to HNO3 (Figure 2.10) through N2O5 hydrolysis. As a result, levels of NOx decrease, slowing the formation of O3 . The removal of the NO3 thermal decomposition reaction decreases the mean level of NOx by 10.9%. In addition, the increase in the rate of N2 O5 hydrolysis accentuates these changes, decreasing the mean level of NOx by 2.7%. The changes made to the troe rate parameters for the 18 NOx 80 Madronich and Calvert, Version II, 1989 N2O5 Hydrolysis NO3 Decomposition NO2 + OH + M All Inorganic Revisions Concentration in ppt 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.6 Effect of inorganic nitrogen revisions on NOx levels. Simulated levels of NO3 are shown as a function of time along the trajectory. The solid line indicates the levels simulated using the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with the revised N2 O5 hydrolysis rate constant. The dashed line uses the Master Mechanism without the NO3 thermal decomposition reaction. The dot-dashed line uses the Master Mechanism with updated troe rate parameters for the reaction of NO2 + OH. The long dashed line indicates the sum of all the revisions to inorganic chemistry. O3 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 N2O5 Hydrolysis NO3 Decomposition NO2 + OH + M All Inorganic Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.7 Effect of inorganic nitrogen revisions on O3 levels. Refer to Figure 2.6 for descriptive information. 19 NO3 20 Madronich and Calvert, Version II, 1989 N2O5 Hydrolysis NO3 Decomposition NO2 + OH + M All Inorganic Revisions Concentration in ppt 15 10 5 0 0 1 2 3 Time in Days 4 5 6 Figure 2.8 Effect of inorganic nitrogen revisions on the levels of NO3 . Refer to Figure 2.6 for descriptive information. N2O5 2.5 Concentration in ppt 2.0 Madronich and Calvert, Version II, 1989 N2O5 Hydrolysis NO3 Decomposition NO2 + OH + M All Inorganic Revisions 1.5 1.0 0.5 0.0 0 1 2 3 Time in Days 4 5 6 Figure 2.9 Effect of inorganic nitrogen revisions on the levels of N2 O5 . Refer to Figure 2.6 for descriptive information. 20 HNO3 200 Madronich and Calvert, Version II, 1989 N2O5 Hydrolysis NO3 Decomposition NO2 + OH + M All Inorganic Revisions Concentration in ppt 150 100 50 0 0 1 2 3 Time in Days 4 5 6 Figure 2.10 Effect of inorganic nitrogen revisions on the levels of HNO3 . Refer to Figure 2.6 for descriptive information. reaction of NO2 with OH decreases the loss rate of NO2 , which increases the levels of NOx . For this simulation the mean level of NOx (averaged over the duration of the simulation) was increased by 6.4%. As a result of increased NOx levels, the levels of O3 are increased; the mean level of O3 is increased by 0.3%. Additionally, the levels of HNO3 are decreased. When all the inorganic revisions are included, the mean level of NOx and O3 are decreased by 10.5% and 0.02% respectively. 2.3.3 Organic Reactions Reactions of a variety of organic species have been revised, including the reactions of unsubstituted hydrocarbons, radicals, oxygen containing organic compounds, nitrogen containing organic compounds, and aromatic compounds. 21 NOx Concentration in ppt 80 Madronich and Calvert, Version II, 1989 CH4 All Unsubstituted Hydrocarbon Revisions 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.11 Effect of revisions to unsubstituted hydrocarbon reactions on levels of NOx . Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised methane chemistry. The dashed line uses revised unsubstituted organic chemistry. 2.3.3.1 Unsubstituted Hydrocarbons The revisions to straight chain alkane reactions with OH and NO3 were completed through C6 . Branched alkane reactions were also revised through C6 if data were available [Atkinson, 1994; DeMore et al., 1997]. Alkene reactions were revised through C4 for reactions with OH, O3 , and NO3 . Reactions of acetylene with OH, NO3 , and O3 were also examined. No other alkyne reactions were updated, as acetylene is the only alkyne included in the NCAR Master Mechanism-Version 2.0 and the only alkyne measured in arctic air. Rate parameters recommended by DeMore et al. [1997] were used if they were available (reactions of C3 with OH). For the remaining alkane, alkene, and alkyne reactions, rate parameters were based on the recommendations of Atkinson [1994]. The revisions to reactions of unsubstituted hydrocarbons result in a slight decrease in the simulated levels of NOx (Figure 2.11), and a marked decrease in O3 (Figure 2.12). These 22 Ozone 74 Concentration in ppb 72 70 68 66 64 0 Madronich and Calvert, Version II, 1989 CH4 All Unsubstituted Hydrocarbon Revisions 1 2 3 Time in Days 4 5 6 Figure 2.12 Effect of revisions to unsubstituted hydrocarbon reactions on O3 levels. Refer to Figure 2.11 for descriptive information. changes are due primarily to revisions of methane chemistry. The rate constant for the reaction of methane with OH was reduced by 21%, which increased the levels of methane and OH. In contrast, methane levels were lowered by the addition of its reaction with NO3 . However, the increase in the methane loss rate due to the addition of reaction with NO3 , is outweighed by the decrease in the loss rate of methane by reaction with OH. The changes to methane chemistry alone results in a 2.9% and 0.2% decrease in the mean levels of NO x and O3 , respectively, compared to a 2.7% and 0.2% decrease when all unsubstituted organic revisions were included. The sum of all the unsubstituted hydrocarbon revisions results in increased levels of OH, which increases the loss rate of many species including NOx , accounting for its decreased mixing ratios. 23 Table 2.4 Alkyl and Alkoxy Radical Reactions. Reaction CH3 + O3 ! ? CH3 + O2 ! ? CH3 + O2 + (M) ! CH3 (OO) + (M) C2 H5 + O2 ! C2 H4 + HO2 C2 H5 + O2 + (M) ! CH3 CH2 (OO) + (M) HCO + O2 ! CO + HO2 CH2 (OH) + O2 ! CH2 O + HO2 CH3 O + O2 ! CH2 O + HO2 CH3 O + NO ! CH2 O + HNO CH3 O + NO2 ! CH2 O + HNO2 CH3 O + NO2 + (M) ! CH3 3(ONO2 ) + (M) CH3 CH2 (O) + O2 ! d021 + HO2 CH3 CH2 (O) + NO + (M) ! CH3 CH2 ONO + (M) CH3 CH2 (O) + NO2 + (M) ! CH3 CH2 (ONO2 ) + (M) New K298 2.6E-12 <3.0E-16 1.1E-12 <2.0E-14 7.5E-12 5.5E-12 9.1E-12 1.9E-15 < 8.0E-12 2.0E-13 1.5E-11 1.0E-14 4.7E-11 2.7E-11 New E/R 2.2E+02 0.0E+00 -1.2E+03 2.1E+03 -1.2E+03 -1.4E+02 0.0E+00 9.0E+02 0.0E+00 1.2E+03 0.0E+00 5.5E+02 0.0E+00 0.0E+00 a Recommended by DeMore et al. [1997] b No E/R value reported, Madronich and Calvert [1989] value retained c New reaction d Products changed 2.3.3.2 Sources Madronich and Calvert [1989] a Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] b DeMore et al. [1997] Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] DeMore et al. [1997] c DeMore et al. [1997] d DeMore et al. [1997] DeMore et al. [1997] DeMore et al. [1997] DeMore et al. [1997] Radicals A limited number of revisions have been made to the chemistry of alkyl and alkoxy radicals. C2 or smaller alkyl radical reactions with O2 that were examined are listed in Table 2.4. Also listed in this table are alkoxy radical reactions ( C2 ) which were revised. These revisions only affected the mixing ratios of the radicals themselves; other species were not significantly influenced, since the lifetimes of these radicals were already very short. Significant revisions were made to the chemistry of peroxy radicals. Rate constants and activation temperatures (Ea /R) for peroxy radical reactions were updated using the methods developed by Kirchner and Stockwell [1996]. These methods are described further below. Peroxy radicals may react with NO, HO2, NO2 , with themselves (self-reaction), and any other peroxy radicals which are present (cross-reaction). Recent studies [Canosa-Mas et al., 1996] suggest that peroxy radicals may also react with NO3. 24 In the NCAR Master Mechanism-Version 2.0, there are 314 peroxy radicals. There is a reaction for each peroxy radical with NO and with HO2 . Additionally, there are reactions with NO2 for the methylperoxy radical and the acyl peroxy radicals. For simplicity, a counter scheme is used for the cross-reactions (peroxy-peroxy radical reactions). In the NCAR Master Mechanism-Version 2.0, each peroxy radical reacts with methylperoxy radical and 4 counters, each counter representing a family of peroxy radicals (primary, secondary, tertiary, and acyl), as described by Madronich and Calvert [1990]. Peroxy radical reactions with NO Peroxy radical reactions with NO were revised using experimentally determined rate parameters where available. As suggested by Atkinson [1994], if data were not available, the acyl peroxy radicals were assigned the measured rate parameters of peroxy acetyl radical (k298 = 1:8 10,11 molec,1 cm3 s,1 and E/R = -360 K) [DeMore et al., 1997] and alkyl peroxy radicals were assigned a rate constant of k298 = 4 10,12 molec,1 cm3 s,1 [Kirchner and Stockwell, 1996]. The main path for this reaction produces an alkoxy radical and NO2 , while the second reaction path produces an alkyl nitrate: RO2 + NO !a RO + NO2 !b RONO2: (2.1) For larger alkyl peroxy radicals, Reaction 2.1b becomes important; for these reactions branching ratios were calculated using the method described by Atkinson [1994]. The reaction rate constants for methyl and ethyl peroxy radicals (and several others) with NO were increased. However, most of the reaction rate constants for alkyl peroxy radicals with NO were decreased. These revisions have a minimal effect on the levels of NOx (Figure 2.13) and 25 NOx 100 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + NO Acyl Peroxy + NO All Peroxy Revisions Concentration in ppt 80 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.13 Effect of revisions to peroxy radical reactions with NO on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised alkyl peroxy radical reactions with NO. The dashed line uses revised acyl peroxy radical reactions with NO. The long dashed line indicates the sum of all the revisions to the peroxy radical reactions. O3 (Figure 2.14), decreasing the average levels by 0.7% and 0.01%, respectively. The reaction rate constants for the acyl peroxy radical reactions with NO were increased. Increasing the loss rate of the peroxyacetyl radical reduces the amount that reforms PAN, increasing the levels of NOx (Figure 2.13) and O3 (Figure 2.14). Average levels of NOx and O3 were increased significantly, by 9.1% and 0.33%, respectively, as a result of revisions to acyl radical reactions with NO. Peroxy radical reactions with HO2 The reactions of peroxy radicals with HO2 have been revised (see Table C.7) using experimental data where available. If unavailable, the rate parameters were assigned using the rate parameters of similar compounds or the average values (k298 = 1:30 10,11 molec,1 cm3 s,1 , E/R = -1300 K) determined by Kirchner and Stockwell [1996]. Each acyl peroxy reaction with HO2 has two possible pathways, one producing an acid 26 Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + NO Acyl Peroxy + NO All Peroxy Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.14 Effect of revisions to peroxy radical reactions with NO on O3 levels. Refer to Figure 2.13 for descriptive information. (RC(O)OH), the other producing a peroxy acid (RC(O)OOH). R-C(O)OO + HO2 !a R-C(O)OOH + O2 !b R-C(O)OH + O3 : (2.2) The NCAR Master Mechanism-Version 2.0 only includes Reaction 2.2a. The second reaction pathway, (Reaction 2.2b), was added using the branching ratios of Kirchner and Stockwell [1996], which are in the range of values presented by DeMore et al. [1997] (kb /k=0.25–0.33). The result of these changes was an increase in the reaction rate constants for both alkyl and acyl peroxy radical reactions with HO2. Revisions to both alkyl and acyl peroxy radical reactions with HO2 increased the levels of NOx and O3 as shown in Figures 2.15 and 2.16. The effects were greatest for the acyl peroxy adjustments (average levels increased by 9.0% and 0.31%) relative to the alkyl peroxy revisions (average levels increased by 5.2% and 0.10%). 27 NOx 100 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + HO2 Acyl Peroxy + HO2 All Peroxy Revisions Concentration in ppt 80 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.15 Effect of revisions to peroxy radical reactions with HO2 on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised alkyl peroxy radical reactions with HO2 . The dashed line uses revised acyl peroxy radical reactions with HO2 . The long dashed line indicate the sum of all the revisions to the peroxy radical reactions. Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + HO2 Acyl Peroxy + HO2 All Peroxy Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.16 Effect of revisions to peroxy radical reactions with HO2 on O3 levels. Refer to Figure 2.15 for descriptive information. 28 Table 2.5 Alkyl Peroxy Radical Rate Constants for Reaction with HO2 . Parent Hydrocarbon methylperoxy ethylperoxy C3 –C8 nonsubstituted methyl alcohol ethyl alcohol C3 –C8 alcohol Organic Nitrates CH3 C(O)CH2 O2 ketones C6 H5 CH2 O2 Aromatics Carboxylic acids Aldehydes Ethers Peroxy Acids Hydroperoxides PANs k(298) 5.6 10,12 8.0 10,12 1.3 10,11 1.2 10,11 1.0 10,11 1.3 10,11 1.3 10,11 9.0 10,12 9.0 10,12 1.0 10,11 1.0 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 E/R -800 -700 -1300 -2300 -1300 -1300 -1300 -1300 -1300 -980 -980 -1300 -1300 -1300 -1300 -1300 -1300 Source [DeMore et al., 1997] [DeMore et al., 1997] average value from [Kirchner and Stockwell, 1996] [Lightfoot et al., 1992] [Lightfoot et al., 1992] average value from [Kirchner and Stockwell, 1996] [Kirchner and Stockwell, 1996] [LeBras, 1997] CH3 C(O)CH2O2 [LeBras, 1997] C6 H5 CH2 O2 average value from [Kirchner and Stockwell, 1996] average value from [Kirchner and Stockwell, 1996] average value from [Kirchner and Stockwell, 1996] average value from [Kirchner and Stockwell, 1996] average value from [Kirchner and Stockwell, 1996] average value from [Kirchner and Stockwell, 1996] Peroxy radical reactions with NO2 In the NCAR Master Mechanism-Version 2.0 there are only two reactions of alkyl peroxy radicals with NO2, those with the methylperoxy radical and C6 H5 O2. As the rate parameters recommended by DeMore et al. [1997] for the reaction of methylperoxy radical with NO2 are the same as those used in the Master Mechanism, that reaction was not altered. Reactions of alkyl peroxy radicals with NO2 are typically insignificant compared to the other reactions of alkyl peroxy radicals under most tropospheric conditions [FinlaysonPitts and Pitts, 1999], because this reaction forms peroxynitrates which rapidly undergo thermal decomposition back to its reactants. Additional reactions were therefore not added. Revisions to the reactions of acyl peroxy radicals with NO2 are included in the PAN revisions discussed in Section 2.3.3.4, and are therefore not included here. Peroxy radical reactions with NO3 Reactions of methylperoxy radical and peroxyacetyl radical with NO3 have been added to the mechanism with rate constants of 1.2 10,12 molec,1cm3 29 NOx 100 Madronich and Calvert, Version II, 1989 Peroxy + NO3 All Peroxy Revisions Concentration in ppt 80 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.17 Effect of revisions to peroxy radical reactions with NO3 on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with the addition of methylperoxy and peroxyacetyl radical reactions with NO 3 . The long dashed line indicates the sum of all the revisions to the peroxy radical reactions. s,1 and 4.0 10,12 molec,1 cm3 s,1 [Kirchner and Stockwell, 1996], respectively. As shown in Figures 2.17 and 2.18, the addition of these two reactions has a minimal effect on NOx and O3 , increasing their average levels by 0.6% and 0.06%, respectively. Peroxy Radical-Peroxy Radical Reactions The rate constants for peroxy radical cross reactions have been revised using experimental data where available. However, most of the rate constants for the peroxy radical cross reactions were estimated using the method recommended by Madronich and Calvert [1990]. In this method, the peroxy radical cross reaction rate constants (k12 ) were estimated as twice the geometric average of the corresponding self-reaction rate constants, k1 and k2 , for peroxy radicals R1 O2 and R2 O2 (where R2 O2 is methylperoxy radical or a counter), k12 = 2(k1 k2)1=2: (2.3) 30 Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Peroxy + NO3 All Peroxy Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.18 Effect of revisions to peroxy radical reactions with NO3 on O3 levels. Refer to Figure 2.17 for descriptive information. The activation temperature, Ea12/R, for the cross reactions have large uncertainties and are calculated from the self-reaction activation temperatures (Ea1/R and Ea2 /R) for peroxy radicals R1 O2 and R2 O2 , Ea12=R = Ea1=R +2 Ea2=R : (2.4) Peroxy radical self-reaction rate constants and Ea /R values were based on experimental data if available [Lightfoot et al., 1992; Atkinson, 1994; Kirchner and Stockwell, 1996; DeMore et al., 1997]. Otherwise, the self-reaction rate constant was estimated using the following equation, k 2 10,14 exp 3:8A , 5 + 3 1 + 0:02N 2 N ; (2.5) developed by Kirchner and Stockwell [1996] to fit self-reaction rate constants based on carbon number, branching structure (methyl, primary, secondary, or tertiary), and electron withdrawing functional groups. In equation 2.5, the rate constant, k (molecule,1 cm3 s,1) is determined based on the presence (A=1) or absence (A=0) of additional oxygen atoms in the alkyl group, the number 31 of alkyl groups on the peroxy radical carbon (), and the number of carbon atoms (N, where N=7 for peroxy radicals C7 ). While the only peroxy radical self-reactions treated explicitly in the Master Mechanism involve HO2 and CH3 O2 , self-reaction rate constants are calculated for all 314 alkyl and acyl peroxy radicals for use in estimating cross-reaction rate constants using Equation 2.3. The primary, secondary, and tertiary counters are assigned self-reaction rate constants based on the recommendation of Atkinson [1994], while the acyl peroxy radical self-reaction rate constant used by Madronich and Calvert [1989] was retained. If experimental activation temperatures (Ea /R) for the self-reactions were available, they were used. If unavailable, Ea /R values were assigned based on A, , and N using the methods of Kirchner and Stockwell [1996]. As with the self-reaction rate constants, an Ea /R value is calculated for each peroxy radical, for use in calculating this ratio for peroxy radical cross reactions. In general, this procedure resulted in decreased reaction rate constants for the alkyl peroxy radical cross reactions with the methylperoxy radical and the primary, tertiary, and acyl peroxy radical counters, while the reaction rate constants were increased for the alkyl peroxy radical cross reactions with the secondary peroxy radical counter. The revisions to the alkyl peroxy reactions with methylperoxy and the counters did not have a significant effect on the levels of NOx (average levels decreased by 0.3% and 0.1%) and O3 (average levels decreased by 0.02% and 0.01%), shown in Figures 2.19 and 2.20. For most of the acyl peroxy radical reactions with methylperoxy radical and the counters, the reaction rate constants were decreased. However, the reaction rate constants were increased for the reactions of peroxyacetyl and peroxypropionyl radicals with methylperoxy radical and the counters. As a result, the loss rates of peroxyacetyl radical were increased, decreasing the levels of 32 NOx 100 Concentration in ppt 80 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + 2011 Alkyl Peroxy + counters Acyl Proxy +2011 Acyl Peroxy + counters All Peroxy Revisions 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.19 Effect of revisions to peroxy radical cross reactions on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised rate constants for the reaction of alkyl peroxy radicals with methylperoxy radical. The dashed line uses revised reactions rate constants for the reactions of alkyl peroxy radicals with the counters. The dot-dashed line uses revised rate constants for the reactions of acyl peroxy radical with methylperoxy radical. The dot-dot-dashed line uses revised rate constants for the acyl peroxy radical reactions with the counters. The long dashed line indicates the sum of all the revisions to the peroxy radical reactions. Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Alkyl Peroxy + 2011 Alkyl Peroxy + counters Acyl Proxy +2011 Acyl Peroxy + counters All Peroxy Revisions 64 0 1 2 3 Time in Days 4 5 6 Figure 2.20 Effect of revisions to peroxy radical cross reactions on O3 levels. Refer to Figure 2.19 for descriptive information. 33 PAN 400 Concentration in ppt 300 200 Madronich and Calvert, Version II, 1989 Acyl Peroxy + NO 100 Acyl Peroxy + HO2 Acyl Peroxy + 2011 Acyl Peroxy + Counters Peroxyacetyl Revisions All Peroxy Revisions 0 0 1 2 3 Time in Days 4 5 6 Figure 2.21 Effect of revisions to peroxy acyl radical reactions on PAN levels. Levels of PAN as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised acyl peroxy radical reactions with NO. The dashed line uses revised acyl peroxy radical reactions with HO2 . The dot-dashed line indicates revisions to the reaction of acyl peroxy radicals with methylperoxy radical. The dot-dot-dashed line uses revised reaction rate constants for the acyl peroxy radicals with the counters. The long dashed line indicate the sum of all the revisions to the peroxy radical reactions. peroxyacetyl radical. (The effects on PAN of modifications of acyl peroxy + methylperoxy reactions and of acyl peroxy + peroxy radical counter reactions are shown in Figure 2.21.) This reduces the amount of peroxyacetyl radical available for PAN reformation (Figure 2.22) which increases the levels of NOx (Figure 2.19) and therefore increases the production of O3 (Figure 2.20). The revisions to the reactions of peroxy acyl radicals with methylperoxy radical significantly increased the average NOx level by 9.2% and 4.5%, respectively, while the average level of O3 was increased by 0.16% and 0.07%, respectively. All Peroxy Radical Revisions The sum of all the revisions made to the chemistry of peroxy radicals results in significantly increased levels of NOx (Figure 2.19) and O3 (Figures 2.20). The 34 Peroxyacetyl Radical 2.0 Concentration in ppt 1.5 Madronich and Calvert, Version II, 1989 Acyl Peroxy + NO Acyl Peroxy + HO2 Acyl Peroxy + 2011 Acyl Peroxy + Counters Peroxyacetyl Revisions All Peroxy Revisions 1.0 0.5 0.0 0 1 2 3 Time in Days 4 5 6 Figure 2.22 Effect of revisions to peroxy acyl radical reactions on peroxyacetyl radical levels. Refer to Figure 2.21 for descriptive information. mean levels of NOx and O3 are increased significantly, by 23.9% and 0.7%, respectively. The changes to the chemistry of acyl peroxy radicals have a much greater effect than the changes made to the chemistry of alkyl peroxy radicals. Of the acyl peroxy radical reactions, the changes to the reactions with HO2 and NO have the largest effect on the levels of NOx (Figure 2.23) and O3 (Figure 2.24), followed closely by the changes made to the reactions with methylperoxy radical and then the counters. Of the acyl peroxy radical species for which reactions were revised, the changes made to the reactions of peroxyacetyl radical have the largest impact, because other peroxyacyl nitrates were not included in the initial conditions for this simulation. When the peroxyacetyl radical reactions are revised, the average levels of NOx and O3 are increased by 17.7% and 0.48%, respectively. The changes made to the reactions of acyl peroxy radicals increase the loss rate of the peroxyacetyl radical, illustrated by the decreased levels shown in Figure 2.22. As a result of more efficient removal of the peroxyacetyl radical, there is less available for the reaction 35 NOx 100 Concentration in ppt 80 Madronich and Calvert, Version II, 1989 Acyl Peroxy + NO Acyl Peroxy + HO2 Acyl Peroxy + 2011 Acyl Peroxy + Counters Peroxyacetyl Revisions All Peroxy Revisions 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.23 Effect of revisions to peroxy acyl radical reactions on NOx levels. Refer to Figure 2.21 for descriptive information. O3 74 Concentration in ppb 72 70 68 Madronich and Calvert, Version II, 1989 Acyl Peroxy + NO 66 64 0 Acyl Peroxy + HO2 Acyl Peroxy + 2011 Acyl Peroxy + Counters Peroxyacetyl Revisions All Peroxy Revisions 1 2 3 Time in Days 4 5 6 Figure 2.24 Effect of revisions to peroxy acyl radical reactions on O3 levels. Refer to Figure 2.21 for descriptive information. 36 with NO2 to reform PAN, decreasing PAN levels (Figure 2.21), and increasing the levels of NOx (Figure 2.23) and O3 (Figure 2.24). 2.3.3.3 Oxygen Containing Organic Compounds The rate parameters for reactions of carbonyls, alcohols, and organic hydroperoxides were revised. The carbonyl reactions that were revised are shown in Table C.13. Revisions for reactions of aldehydes and ketones with OH were completed through C5 , while revisions to reactions of carboxylic acid with OH were completed for C3 . In addition, reactions of C2 aldehydes with NO3 and HO2 were revised. The revised reactions of alcohols with OH and NO3 are shown in Table 2.7. The reactions of C4 alcohols with OH were added to the mechanism using rate constants recommended by Atkinson [1994] and branching ratios calculated using the methods of Atkinson [1987] and Atkinson and Aschmann [1989]. The reactions of methanol, ethanol, and propanol with NO3 were added to the mechanism, using products based on H–atom abstraction and the recommended upper limit rate constants from Atkinson [1994]. Several hydroperoxide reactions with OH were also revised, as shown in Table 2.8. The revisions to reactions of oxygen containing organic compounds primarily affected the simulated levels of the compounds themselves. These compounds were not significant sources of peroxy radicals and did not significantly influence levels of NOx and O3. 37 Table 2.6 Carbonyl Reaction Revisions. Reaction ! HCO + H2 O CH2 O + NO3 ! HCO + HNO3 CH2 O + HO2 ! CH2 (OH)(OO) + XPOO CH2 O + O3 P ! HCO + HO CH3 CHO + HO ! CH3 CHO(OO) + H2 O + XAOO CH3 CHO + NO3 ! CH3 CHO(OO) + HNO3 + XAOO CH3 CHO + O3 P ! CH3 CO + HO CH3 CHO + NO3 ! CHOCO + HNO3 CH3 CH2 CHO + HO ! CH3 CH2 CO(OO) + H2 O + XAOO 1 CH3 CH2 CH2 CHO + HO ! 0.38 CHOCH2 CH(OO)CH3 + 1.62 CH3 CH2 CH2 CO(OO) + 2.00 H2 O 2 CH3 CH2 CH2 CHO + HO ! 1.62 XAOO + 0.38 XSOO CH3 CH(CH3 )CHO + HO ! CH3 CH(CH3 )CO(OO) + H2 O + XAOO 1 CH3 CH2 CH2 CH2 CHO + HO ! 0.38 CH3 CH2 CH(OO)CH2 CHO + 1.62 CH3 CH2 CH2 CH2 CO(OO) 2 CH3 CH2 CH2 CH2 CHO + HO ! 2.00 H2 O + 1.62 XAOO + 0.38 XSOO 1 CH3 CH(CH3 )CH2 CHO + HO ! 0.56 CHOCH2 C(OO)(CH3 )CH3 + 1.44 CH3 CH(CH3 )CH2 CO(OO) 2 CH3 CH(CH3 )CH2 CHO + HO ! 2.00 H2 O + 1.44 XAOO + 0.56 XTOO CH2 (OH)CHO + HO ! 0.80 CH2 (OH)CO(OO) + 0.20 CHOCHO CH2 O + HO + 0.20 HO2 + 0.80 XAOO New K298 1.0E-11 5.8E-16 5.0E-14 1.6E-13 1.4E-11 2.4E-15 4.5E-13 4.5E-15 2.0E-11 New E/R 0.0E+00 2.9E+03 -6.0E+02 1.6E+03 -2.7E+02 1.9E+03 1.1E+03 1.9E+03 -2.5E+02 Sources Madronich and Calvert [1989] a DeMore et al. [1997] b DeMore et al. [1997] Madronich and Calvert [1989] a DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989] a Stockwell et al. [1997] Atkinson [1994] b 1.2E-11 1.2E-11 2.6E-11 -2.5E+02 -2.5E+02 -4.1E+02 Atkinson [1994] c Atkinson [1994] c Atkinson [1994] c 1.4E-11 1.4E-11 -4.5E+02 -4.5E+02 Atkinson [1994] c Atkinson [1994] c 1.4E-11 1.4E-11 -2.6E+02 -2.6E+02 Atkinson [1994] b Atkinson [1994] b 9.9E-12 1.1E-11 1.7E-11 2.2E-13 3.0E-12 -2.6E+02 0.0E+00 -2.5E+02 6.9E+02 0.0E+00 Atkinson [1994] d Atkinson [1994] Atkinson [1994] b DeMore et al. [1997] Atkinson [1994] ! CHOCO + H2 O ! CH3 COCO(OO) + H2 O + XAOO CH3 COCH3 + HO ! CH3 COCH2 (OO) + H2 O + XPOO CH3 COCH2 (OH) + HO ! CH3 COCHO + HO2 1 CH3 CH2 COCH3 + HO ! 0.96 CH3 COCH(OO)CH3 + 1.04 CH3 COCH2CH2 (OO) + 2.00 H2 O 5.8E-13 1.8E+02 Atkinson [1994] 2 CH3 CH2 COCH3 + HO ! 0.96 XSOO + 1.04 XPOO 5.8E-13 1.8E+02 Atkinson [1994] c CH3 CH2 CH2 COCH3 + HO ! CH3 COCH2CH(OO)CH3 + H2 O + XSOO 4.9E-12 -7.6E+01 Atkinson [1994] e; f CH3 CH2 COCH2 CH3 + HO ! CH3 CH2 COCH(OO)CH3 + H2 O + XSOO 2.0E-12 4.6E+02 Atkinson [1994] e;f; g C5 H1 2CO + HO ! CH2 CH2 COCH2 CH(OO)CH3 + H2 O 9.1E-12 -1.8E+02 Atkinson [1994] e;f CH3 COCOCH3 + HO ! CH3 COCOCH2(OO) + H2 O + XPOO 2.4E-13 4.0E+02 Atkinson [1994] c; h CHO(OH) + HO ! CO2 + H2 O + H 4.0E-13 0.0E+00 DeMore et al. [1997] CH3 CO(OH) + HO ! CO(OH)CH2 (OO) + H2 O + XPOO 8.0E-13 -2.0E+02 DeMore et al. [1997] CH3 CH2 CO(OH) + HO ! CH3 CH(OO)CO(OH) + H2 O + XSOO 1.2E-12 0.0E+00 Atkinson [1994] a Recommended by DeMore et al. [1997] b No E/R value reported, Madronich and Calvert [1989] value retained c E/R calculated from D+nT, not reported as an Arrhenius equation d Branching ratio changed, used that recommended by Atkinson et al. [1992b] e Reaction added by Williams [1994a] f No E/R value reported, use E/R generated by Williams [1994a] g Product changed to 2k53 from 2k52 h New reaction CHOCHO + HO CH3 COCHO + HO 38 Table 2.7 Alcohol Reactions. Reaction ! 0.14 CH2 (OH) + 0.86 CH3 O + H2 O ! CH3 CHO + H2 O + HO2 CH3 CH2 CH2 (OH) + HO ! 0.23 CH3 CH(OO)CH2 (OH) CH3 (OH) + HO CH3 CH2 (OH) + HO + 0.77 CH3 CH2 CHO + 0.77 HO2 + 0.23 XSOO ! CH3 COCH3 + HO2 1 CH3 CH2 CH2 CH2 (OH) + HO ! 0.03 CH3 C(OO)(CH3 )CH2 (OH) + 0.39 CH2 (OH)CH2 CH(OO)CH3 2 CH3 CH2 CH2 CH2 (OH) + HO ! 0.58 CH3 CH2 CH2 CHO CH3 CH(OH)CH3 + HO + 0.58 HO2 + 0.39 XSOO + 0.03 XPOO ! CH3 C(OH)(CH3 )CH2 (OO) + XPOO ! 0.14 CH2 (OH) + 0.86 CH3 O + HNO3 CH3 CH2 (OH) + NO3 ! CH3 CHO + HNO3 + HO2 CH3 CH2 CH2 (OH) + NO3 ! 0.23 CH3 CH(OO)CH2 (OH) CH3 CH(OH)(CH3 )CH3 + HO CH3 (OH) + NO3 New K298 8.9E-13 3.2E-12 New E/R 6.0E+02 2.4E+02 Sources DeMore et al. [1997] DeMore et al. [1997] 5.5E-12 5.3E-12 0.0E+00 -3.5E+01 Atkinson [1994] Atkinson [1994] a 4.3E-12 0.0E+00 Atkinson [1994] b; c 4.3E-12 1.1E-12 <6.0E-16 <9.0E-16 0.0E+00 2.7E+02 0.0E+00 0.0E+00 Atkinson [1994]b;c Atkinson [1994]a;b Atkinson [1994]b Atkinson [1994]b <2.3E-15 0.0E+00 a E/R calculated from D+nT, not reported as an Arrhenius expression b New Reaction c Branching ratio calculated using Atkinson et al. [1987] + 0.77 CH3 CH2 CHO + 0.77 HO2 + 0.23 XSOO Atkinson [1994]b Table 2.8 Hydroperoxide Reactions. Reaction A CH (OO) + H O ! 3 2 B CH3 (OOH) + HO ! CH2 O + HO + H2 O CH3 CH(OOH)CH3 + HO ! 0.50 CH3 CH(OO)CH3 CH3 (OOH) + HO + 0.50 CH3 COCH3 + 0.50 HO + 0.50 XSOO New K298 5.2e-12 2.2e-12 New E/R -2.0E+02 -2.0E+02 1.0E-11 3.0E-12 0.0E+00 0.0E+00 Sources DeMore et al. [1997] a DeMore et al. [1997] a Madronich and Calvert [1989] b Atkinson [1994] ! CH3 C(OO)(CH3 )CH3 + H2 O + XTOO a Branching ratio and products from Madronich and Calvert [1989] b product changed from CH3CH2CH2(OO.) to CH3CH(OO)CH3 by Williams [1994a] CH3 C(OOH)(CH3 )CH3 + HO 39 2.3.3.4 Nitrogen Containing Organic Compounds Reactions of peroxy acyl nitrates and alkyl nitrates were revised as follows. Peroxy Acyl Nitrate Revisions The peroxy acyl nitrate revisions include several changes to reactions involving PAN and its homologues. The formation of PAN was changed from a bimolecular reaction, CH3 C(O)OO + NO2 ! CH3 C(O)OONO2; (2.6) * ) CH3 C(O)OONO2 + M: (2.7) to a pressure dependent termolecular reaction, CH3 C(O)OO + NO2 + M The thermal decomposition reaction rate constant is now calculated from the equilibrium constant and the PAN formation rate constant recommended by DeMore et al. [1997]. The NCAR Master Mechanism-Version 2.0, included two reaction paths for the thermal decomposition of PAN, CH3 C(O)OONO2 !a CH3 C(O)OO + NO2 !b +CH3 (ONO2 ) + CO2 (2.8) : The thermal decomposition path (Reaction 2.8b), which led to the formation of methyl nitrate was removed, because studies by Bridier et al. [1991] indicated the only products produced from PAN decomposition are peroxyacetyl radical and NO2, Additionally, the photolysis of PAN, CH3 C(O)OONO2 + h !a CH3 C(O)OO + NO2 !b CH3 C(O)O + NO3 (2.9) 40 PAN Concentration in ppt 400 Madronich and Calvert, Version II, 1989 PAN PAN Homologues All PANs 300 200 100 0 0 1 2 3 Time in Days 4 5 6 Figure 2.25 Effect of revisions to peroxy acyl nitrate reactions on PAN levels. Levels of PAN as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The dotted line uses the Master Mechanism with revised PAN chemistry. The dashed line uses the revised chemistry for the PAN homologues. The long dashed line indicates the sum of all the revisions to the chemistry of peroxyacyl nitrates. was added to the mechanism, using a temperature-dependent cross–section [DeMore et al., 1997] and quantum yields of 0.77 and 0.23 for channels a and b, respectively [Mazely et al., 1997]. The revisions to PAN chemistry result in a shift toward PAN formation, increasing the levels of PAN as shown in Figure 2.25, and decreasing the levels of NOx (Figure 2.26) and peroxyacetyl radical (Figure 2.27). As a result of lower NOx levels, the production of O3 (Figure 2.28) is reduced. The mean levels of NOx and O3 are decreased by 14.1% and 0.4% respectively. Revisions were also made to the thermal decomposition and formation reactions of the larger peroxyacyl nitrates. Experimentally determined rate parameters were used if they were available. Otherwise, for thermal decomposition of the peroxyacyl nitrates, values recommended by Atkinson [1994] were used (k298 = 6:1 10,04 s,1 , E/R = 1.4E+04 K). The high pressure limit rate constant recommended by DeMore et al. [1997] (k298 = 8:6 10,12 molec,1 cm3 s,1 ) for the reaction 41 NOx Concentration in ppt 80 Madronich and Calvert, Version II, 1989 PAN PAN Homologues All PANs 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.26 Effect of revisions to peroxy acyl nitrate reactions on NOx levels. Refer to Figure 2.25 for descriptive information. Peroxyacetyl Radical Concentration in ppt 2.0 Madronich and Calvert, Version II, 1989 PAN PAN Homologues All PANs 1.5 1.0 0.5 0.0 0 1 2 3 Time in Days 4 5 6 Figure 2.27 Effect of revisions to peroxy acyl nitrate reactions on peroxyacetyl radical levels. Refer to Figure 2.25 for descriptive information. 42 Ozone 74 Concentration in ppb 72 70 68 66 64 0 Madronich and Calvert, Version II, 1989 PAN PAN Homologues All PANs 1 2 3 Time in Days 4 5 6 Figure 2.28 Effect of revisions to peroxy acyl nitrate reactions on O3 levels. Refer to Figure 2.25 for descriptive information. of peroxyacetyl radical with NO2 was used for the peroxyacyl nitrate formation reactions where experimental data did not exist. However, because PAN was the only peroxyacyl nitrate included in the initial conditions for this simulation, the revisions to the chemistry of PAN homologues do not significantly affect the levels of NOx (Figure 2.26) or O3 (Figure 2.28). Alkyl Nitrates Loss reactions were added for C2 –C5 alkyl nitrates. For the larger alkyl nitrates, C5 , the reaction with OH is dominant, while for smaller alkyl nitrates the photolysis reaction becomes competitive [Roberts, 1995]. The rate parameters, products, and branching ratios for the alkyl nitrate reactions with OH were based on the recommendations of DeMore et al. [1997] or Atkinson [1994]. For the photolysis reactions, the cross sections and quantum yields recommended by Atkinson [1994] were implemented using the methods described in Section 2.3.1. For completeness, reactions for the products (peroxy, alkoxy, and hydroperoxides) from these new reactions and subsequent reactions were also added. 43 NOx Concentration in ppt 80 Madronich and Calvert, Version II, 1989 RONO2 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.29 Effect of revisions to alkyl nitrate reactions on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The long dashed line indicates the revisions and additions to the chemistry of alkyl nitrates. Revisions to the alkyl nitrate reactions result in an increase in the level of NOx (average NOx level increased 10.7%), shown in Figure 2.29. With the addition of loss reactions, alkyl nitrates become a source of NOx , rather than a terminal sink. In this simulation, higher levels of NOx increase the rate of ozone production, resulting in higher levels as shown in Figure 2.30. The mean level of O3 is increased by 0.4%. The importance of the alkyl nitrate revisions is partially due to the relatively high initial conditions. 2.3.3.5 Aromatic Compounds The reactions of benzene and its products are described in detail in Section 3.2.1.2. Revisions to the benzene mechanism are shown in Table C.18. The only loss reaction for nitrophenol in the NCAR Master Mechanism-Version 2.0 is the reaction with NO3 . However, it is believed that reaction with OH is the dominant gas-phase reaction [Atkinson, 1994]. Therefore, the reaction with OH (k298 44 Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 RONO2 64 0 1 2 3 Time in Days 4 5 6 Figure 2.30 Effect of revisions to alkyl nitrate reactions on O3 levels. Refer to Figure 2.29 for descriptive information. = 9 10,13 molec,1 cm3 s,1) was added to the mechanism, and the reaction rate constant of nitrophenol with NO3 was substantially reduced from 3:8 10,12 to 2:0 10,14 molec,1 cm3 s,1 . These changes have a significant effect on the partitioning between nitrophenol (Figure 2.31) and dinitrophenol (Figure 2.32). As a result, the levels of NOx were increased (Figure 2.33), slightly increasing the level of O3, as shown in Figure 2.34. The mean levels of NOx and O3 were increased by 3.8% and 0.05%, respectively, as a result of the revisions made to the chemistry of aromatic compounds. 45 Nitrophenol 12 Madronich and Calvert, Version II, 1989 Aromatic Revisions Concentration in ppt 10 8 6 4 2 0 0 1 2 3 Time in Days 4 5 6 Figure 2.31 Effect of aromatic revisions on nitrophenol levels. Levels of nitrophenol as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The long dashed line indicates the revisions to aromatic chemistry. Dinitrophenol 10 Madronich and Calvert, Version II, 1989 Aromatic Revisions Concentration in ppt 8 6 4 2 0 0 1 2 3 Time in Days 4 5 6 Figure 2.32 Effect of aromatic revisions on dinitrophenol levels. Refer to Figure 2.31 for descriptive information. 46 NOx Concentration in ppt 80 Madronich and Calvert, Version II, 1989 Aromatic Revisions 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.33 Effect of aromatic revisions on NOx levels. Refer to Figure 2.31 for descriptive information. Ozone 74 Concentration in ppb 72 70 68 66 64 0 Madronich and Calvert, Version II, 1989 Aromatic Revisions 1 2 3 Time in Days 4 5 6 Figure 2.34 Effect of aromatic revisions on O3 levels. Refer to Figure 2.31 for descriptive information. 47 Table 2.9 Revised Aromatic Reactions. Reaction C6 H6 + HO ! 0.21 C6 H5 (H)OH(OO) + 0.79 C6 H5 (OH) + 0.79 HO2 C6 H6 + NO3 ! C6 H5(OO) + HNO3 A C6 H5 (OH) + HO ! C6 H5 (O) + H2 O B C6 H5 (OH) + HO ! C6 H5 (OH)(OH) C6 H5 (OH) + NO3 ! C6 H5 (O) + HNO3 C6 H4 OH,NO2 + HO ! C6 H4(O),NO2 + H2 O C6 H4 OH,NO2 + NO3 ! C6 H4 (O),NO2 + HNO3 New K298 1.2E-12 <3.0E-17 New E/R 2.1E+02 0.0E+00 2.1E-12 4.0E+02 Atkinson [1994] b 2.4E-11 3.8E-12 2.3E-11 <2.0E-14 4.0E+02 0.0E+00 0.0E+00 0.0E+00 Atkinson [1994] Atkinson [1994] Grosjean [1991]b Atkinson [1994] a New Reaction b Branching ratio from Madronich and Calvert [1989] retained Sources Atkinson [1994] Atkinson [1994] a 48 Table 2.10 Percent difference in mean NOx and O3 levels compared to the original mechanism, the NCAR Master-Mechanism-Version 2. Mechanism Photolysis Inorganic Organic Peroxy PAN RONO2 Aromatics Net Result % Change [NOx ] -8.4 -10.5 -2.7 23.9 -14.1 10.7 3.8 10.3 % Change [O3 ] -0.96 -0.02 -0.20 0.69 -0.38 0.38 0.05 -0.29 2.3.4 Comparison of Revisions The effect of each set of revisions on the levels of NOx and O3 is shown in Figures 2.35 and 2.36. Table 2.10 compares the magnitude of the effect of each subset of revisions on the mean level of NOx and O3 , while Table 2.11 compares the changes to the net rate of ozone production. The simulated levels of NOx and O3 are increased by revisions to the chemistry of peroxy radicals (Section 2.3.3.2), alkyl nitrates (Section 2.3.3.4), and aromatics (Section 2.3.3.5), while levels of NOx and O3 are decreased by revisions to photolysis (Section 2.3.1), PAN (Section 2.3.3.4), inorganic (Section 2.3.2) and organic species (Sections 2.3.3.1 and 2.3.3.3). The revisions to the peroxy radical reactions, photolysis reactions, and PAN reactions have the largest impact on the levels of NOx and O3 . While the revisions made for each of the categories individually have large effects on NOx and O3 levels, when all the revisions are made (shown as Net Result in Figures 2.35 and 2.36) the net effect is much smaller, because the revisions counteract one another. Overall, the revisions result in a 10.3% increase and 0.3% decrease in the average levels of NOx and O3, respectively, in comparison to the original mechanism. With higher levels of NOx , the average rate of ozone production is increased, as shown in Table 2.11. However, the average rate of O3 destruction is increased at an even greater rate, primarily due to the increased photolysis 49 NOx 100 Concentration in ppt 80 60 Madronich and Calvert, Version II, 1989 Photolysis Inorganic Organic Peroxy PAN RONO2 Aromatics Net Result 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.35 Effect of revision subsets on NOx levels. Levels of NOx as a function of time along the trajectory. The solid line uses the unrevised NCAR Master Mechanism-Version 2.0. The blue dotted line uses revisions only to photolysis reactions. The light blue dashed line uses revisions to inorganic reactions. The dash-dot green line uses revisions to organic reactions (unsubstituted HC, carbonyls, alkyl and alkoxy radicals, hydroperoxides). The yellow dash-dot-dot line uses peroxy radical revisions. The orange dotted line uses revisions to PAN reactions. The magenta dashed line uses revisions to alkyl nitrate reactions. The purple dash-dotted line uses revisions to the aromatic reactions The long dashed red line indicates the net result of using all revisions. O3 74 Concentration in ppb 72 70 68 66 64 0 Madronich and Calvert, Version II, 1989 Photolysis Inorganic Organic Peroxy PAN RONO2 Aromatics Net Result 1 2 3 Time in Days 4 5 6 Figure 2.36 Effect of revision subsets on O3 levels. Refer to Figure 2.35 for descriptive information. 50 Table 2.11 Ozone production and destruction rates in ppb/day, averaged over the duration of the trajectory. Reaction MM V2.0 Ozone Production Reactions HO2 + NO 0.96 CH3 O2 + NO 0.40 RO2 + NO 0.12 production rate 1.48 Photo. Inorg. Org. Peroxy PANs RONO2 Aromatic Net 0.95 0.42 0.13 1.49 0.89 0.39 0.12 1.39 0.95 0.32 0.12 1.40 1.19 0.46 0.08 1.73 0.79 0.35 0.11 1.24 1.08 0.42 0.13 1.63 0.99 0.41 0.12 1.52 1.20 0.40 0.08 1.69 Ozone Destruction Reactions 1.18 H2 O+ O(1 D) HO2 + O3 0.94 OH+ O3 0.27 NO2 + O3 0.02 destruction rate 2.41 1.53 1.04 0.30 0.02 2.89 1.18 0.92 0.26 0.01 2.37 1.18 0.96 0.28 0.02 2.44 1.19 0.92 0.29 0.02 2.44 1.17 0.92 0.25 0.01 2.36 1.19 0.96 0.28 0.02 2.46 1.19 0.94 0.27 0.02 2.42 1.54 1.05 0.34 0.02 2.95 Net Ozone Production -0.94 -1.40 -0.98 -1.04 -0.71 -1.12 -0.83 -0.90 -1.29 rate of ozone. The overall effect is a 35% decrease (0.33 ppb/d) in the average rate of net ozone production. To determine whether all the groups need to be revised, simulations were run in which groups of revisions were added one at a time, starting with the photolysis revisions, which had the largest individual effect on the level of O3 . Revision subsets were then added in the order of the greatest to the smallest individual effect on the average level of NOx (Table 2.10). As shown in Figure 2.37, levels of O3 for the simulation with revised photolysis, peroxy, and PAN reactions are fairly close to those in the simulation with all revised reactions. However, this is the result of individual effects cancelling one another out, as NOx levels (Figure 2.38) for the same subset of revisions do not adequately match those in the fully revised simulation. To adequately simulate both NOx and O3 , all the groups need to be revised. 51 O3 74 Concentration in ppb 72 70 Madronich and Calvert, Version II, 1989 Photolysis Photo and Peroxy Photo, Peroxy, PAN PPP and RONO2 PPPR and Inorganics PPPRI and Aromatics PPPRIA and Organics Net Result 68 66 64 0 1 2 3 Time in Days 4 5 6 Figure 2.37 Effect of adding revision subsets on O3 levels. The solid black line uses the unrevised NCAR Master Mechanism-Version 2.0. The blue dotted line uses revisions only to photolysis reactions. The light blue dashed line uses the previous revisions plus peroxy radical revisions. The dash-dot green line uses the previous revisions plus the revisions to PAN chemistry. The yellow dash-dot-dot line uses all the previous revisions plus alkyl nitrate revisions. The orange dotted line uses all the previous revisions plus revisions to inorganic reactions. The magenta dashed line uses the previous revisions in addition to revisions to aromatic reactions. The purple dash-dotted line uses the previous revisions plus revisions to the organic reactions (unsubstituted HC, carbonyls, alkyl and alkoxy radicals, hydroperoxides). The long dashed red line indicates the net result of using all revisions. NOx 100 Concentration in ppt 80 60 Madronich and Calvert, Version II, 1989 Photolysis Photo and Peroxy Photo, Peroxy, PAN PPP and RONO2 PPPR and Inorganics PPPRI and Aromatics PPPRIA and Organics Net Result 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.38 Effect of adding revision subsets on NOx levels. Refer to Figure 2.37 for descriptive information. 52 Table 2.12 Important Reactions in Each Group of Revisions. Group Photolysis Peroxy Aromatic Reaction O3 + hv ! O2 + O(1 D) CH3 C(O)OO + NO ! CH3 O2 + CO2 + NO2 CH3 C(O)OO + HO2 ! CH3 CO(OOH) + O2 CH3 C(O)OO + HO2 ! CH3 CO(OH) + O3 a CH3 C(O)OO + NO3 ! CH3 CO(O) +NO2 + O2 a CH3 C(O)OO + CH3 O2 ! 1.40 CH3 O + 1.40 CH3 CO(O) + 0.60 CH2 O + 0.60 CH3 CO(OH) CH3 C(O)OO + XPOO ! 0.8 CH3 CO(O) + 0.2 CH3 CO(OH) CH3 C(O)OO + XSOO ! 0.8 CH3 CO(O) + 0.2 CH3 CO(OH) CH3 C(O)OO + XTOO ! CH3 CO(O) CH3 C(O)OO + XAOO ! CH3 CO(O) CH3 C(O)OONO2 + (M) ! CH3 C(O)OO + NO2 + (M) CH3 C(O)OO + NO2 + (M) ! CH3 C(O)OONO2 + (M) CH3 C(O)OONO2 + hv ! CH3 C(O)OO + NO2 CH3 C(O)OONO2 + hv ! CH3 CO(O) + NO3 CH3 C(O)OONO2 + OH! CO(OONO2 )CH2 (OO) + H2 O removed NO3 + M ! NO + O2 + M OH+ NO2 + (M) ! HNO3 + (M) N2 O5 + H2 O! 2 HNO3 CH4 + OH! CH3 + H2 O CH4 + NO3 ! CH3 + HNO3 A nitrophenol + OH! C6H5(O) + H2 O Alkyl Nitrates nitrophenol + OH! dinitrophenol nitrophenol + NO3 ! C6H5(O) + HNO3 all revisions made PAN Inorganic Organic B Since the “Net Result” simulation includes revisions to a large number of reactions, additional simulations were conducted to determine whether the number of necessary revisions could be reduced by updating only the most important reaction or reactions in each category. As discussed above, in many cases only a few reactions are responsible for a majority of the changes in NO x and O3 levels resulting from all revisions to each category. These reactions are listed in Table 2.12, and the result of a simulation in which only those reactions were modified is shown in Figures 2.39 and 2.40. As is apparent in Figures 2.39 and 2.40, the relatively smaller effects of the revisions to the relatively large number of reactions not listed in Table 2.12 collectively alter the simulated NOx and O3 levels. The key reactions increase the mean NOx level 0.49%, and decrease the mean O3 level by 0.51% in 53 NOx 80 Madronich and Calvert, Version II, 1989 Key Reactions Net Result Concentration in ppt 60 40 20 0 0 1 2 3 Time in Days 4 5 6 Figure 2.39 Effect of revising only a few reactions within each subset on NOx levels. Levels of NOx as a function of time along the trajectory. The solid black line uses the unrevised NCAR Master Mechanism-Version 2.0. The blue dotted line uses revisions to the reactions listed in Table 9. The long dashed line indicates the net result of using all revisions. Ozone 74 Concentration in ppb 72 70 68 66 Madronich and Calvert, Version II, 1989 Key Reactions Net Result 64 0 1 2 3 Time in Days 4 5 6 Figure 2.40 Effect of revising only a few reactions within each subset on O3 levels. Refer to Figure 2.39 for descriptive information. 54 comparison to the original mechanism. The difference between the results from the simulation with only key reactions and the simulation that includes all the revisions is primarily due to revisions to peroxy radical reaction rate constants. 2.4 Conclusions Over 3200 reactions in the NCAR Master-Mechanism were revised in increments to determine the effect of each subset of revisions on the simulated levels of NOx and O3 . Revisions to photolysis, peroxy radical, and PAN reactions have the largest effects on the simulated levels of NOx and O3 . Revising the photolysis parameters decreases the mean levels of O3 and NOx by 1.0% and 8.4%, respectively. The revised ozone quantum yield accounts for nearly this entire change. It is expected that in regions with a higher actinic flux, the effect of increasing the quantum yield of ozone would be even greater. However, the initial level of ozone is relatively high due to the trajectory’s initial altitude, which likely emphasizes the importance of the change to the O3 quantum yield relative to scenarios with lower ozone levels. The overall effect of peroxy radical revisions increases the removal rate of the peroxyacyl radicals (primarily peroxyacetyl radical in these simulations), reducing the amount available for PAN reformation, which increases the levels of NOx and O3 on average by 23.9% and 0.7%, respectively. In comparison to the original mechanism, the PAN revisions have shifted the equilibrium toward PAN formation, decreasing the levels of NOx (by 14.1% on average), and therefore decreasing the level of O3 (by 0.4% on average). The overall effect of the revisions made to the mechanism results in a decrease in the mean levels of NOx and O3 by 10.3% and 0.29%, respectively, while the average net rate of ozone production was decreased by 35%. The decrease in NOx levels is primarily due to increased removal rates of 55 the peroxyacetyl radical. The effect of many of the revision subsets are larger than the net result, as many of the individual revisions counteract each other. As a result, if only a small number of kinetic and mechanistic parameters are updated in a gas-phase mechanism, the change in the simulated levels of NOx and O3 could be even larger than the net result, depending on which parameters are revised. Therefore, our recommendation is to update the following reactions in both explicit and lumped mechanisms: ozone photolysis, PAN reactions, peroxyacyl radical reactions, inorganic reactions, and methane chemistry. If aromatic chemistry or organic nitrates are important to the simulation (as they are in the case of arctic outflow) it is important to make the revisions to reactions of those species as discussed above. Additionally, for explicit mechanisms, it is important to examine more than just the reactions listed above, as the effects of many relatively small changes can have a significant effect collectively. While the simulations in this chapter examined the impact of revisions for the specific case of arctic outflow, the results are expected to be applicable to other model results, as the reactions listed above are crucial to determining the levels of NOx and O3 and are included in most gas-phase mechanisms (both explicit and lumped). Chapter 3 Impact of Winter–Spring Arctic Outflow on the NOx and O3 Budgets of the North Atlantic Tropospherey This chapter contains an analysis of the impact of winter–spring arctic outflow events on the tropospheric budgets of NOx and ozone over the North Atlantic Ocean. To accomplish this, a photochemical model, the NCAR Master Mechanism-Version 2.0, is applied to isentropic trajectories selected from the climatology developed by Honrath et al. [1996]. A description of the model and criteria used for trajectory selection is provided in Section 3.1. This is followed by a detailed discussion of the chemical cycling of NOx in arctic outflow events and the resulting impact on O3 . y This chapter is based on material accepted for publication as A.J. Hamlin and R.E. Honrath, A Modeling Study of the Impact of Winter–Spring Arctic Outflow on the NOx and O3 Budgets of the North Atlantic Troposphere, Journal of Geophysical Research, in press, 2002. 56 57 Finally, the fluxes of NOx and O3 to the North Atlantic resulting from arctic outflow are calculated and compared to other sources to the region. 3.1 Model Description Trajectories for simulation were selected from the climatology of forward isentropic arctic outflow trajectories developed by Honrath et al. [1996]. These trajectories were calculated twice daily for the months of January–May and years 1984–1994 using methods described in detail by ? [?]. They originate at 70 N latitude and within the longitude range of 130 W to 50 E. The climatology includes only trajectories that have an initial southward velocity and reach the North Atlantic region (defined here as 10–70 W and 20–50 N). Arctic outflow events are usually the result of large-scale transport along a semipermanent long wave trough located near the east coast of North America [Honrath et al., 1996]. The resulting flow pattern is relatively well organized, and funnels arctic air southward over central and eastern Canada and eastward over the North Atlantic, while subsiding in altitude. The present simulations are meant to describe the photochemistry occurring in an air parcel that is part of such a larger outflow airmass, of homogeneous composition. For this purpose, we use a zero-dimensional model of the photochemistry in the air parcel, with the implicit assumption that mixing with other outflowing air does not significantly alter concentrations during southward transport. Photochemistry occurring over the duration of arctic outflow events was fully simulated for a set of 15 trajectories. These trajectories were selected to span a range of chemical outcomes, based on the relative amount of PAN decomposition and corresponding NOx release. For the purpose of trajectory selection, the expected gross PAN decomposition rate integrated over the duration of 58 each of 22,692 trajectories from the climatology was calculated based on thermal decomposition rates at the temperatures and pressures encountered along the trajectory, without considering any other chemistry. Trajectories corresponding to the 16.7, 50, and 83.3 percentiles of gross PAN decomposition were then selected for detailed analysis. The selected trajectories corresponding to low (16.7th percentile of integrated gross PAN decomposition), median (median integrated gross PAN decomposition), and high (83.3rd percentile of integrated gross PAN decomposition) are shown in Figures 3.1– 3.3. Analyses were conducted for each of the five months January–May. In the discussion below, we focus on results for January, March, and May. However, results for February and April are consistent with those presented. The selected forward trajectories ranged in duration from 1.5 to 8.5 days; trajectories were terminated either because they left the North Atlantic region or because they entered the boundary layer, where the altitude of a given isentropic (potential temperature) level is not uniquely defined. To simulate the evolution of O3 and its precursors in arctic outflow, a photochemical box model was applied to each of the representative trajectories. The photochemical box model was advanced along the trajectory at 15 minute intervals, providing new positional (latitude, longitude, altitude) and environmental (temperature, humidity) data. The model used in this study is the NCAR Master Mechanism of the Gas Phase Chemistry-Version 2.0 [Madronich and Calvert, 1989; Madronich and Calvert, 1990], revised as discussed in Chapter 2 The Master Mechanism is a chemically explicit photochemical model which includes over 5000 gas-phase reactions and approximately 1900 chemical species. The most significant revisions to the mechanism as used in this work include the addition of pressure dependence to the PAN equilibrium reaction [Kirchner and Stockwell, 1996; DeMore et al., 1997] and revision of the peroxy radical reactions [Kirchner and Stockwell, 1997; 59 12 Altitude (km) 10 8 1 6 1 4 23 1 2 2 4 3 2 4 5 5 0 -100 -50 Longitude 0 50 90 45 80 1 2 1 -90 1 3 70 60 0 -45 50 24 3 40 5 2 4 5 30 Figure 3.1 Representative arctic outflow trajectories selected to span chemical outcomes for January. The dotted line indicates low-PAN-decomposition, the dashed line indicates median-PAN-decomposition, and the solid line indicates high-PAN-decomposition. Numerals indicate days of transport. 60 12 Altitude (km) 10 8 1 6 4 2 1 3 2 1 2 2 4 4 3 0 -100 55 -50 Longitude 0 50 90 45 1 1 80 70 22 -90 3 60 0 1 -45 50 34 5 4 2 5 40 30 Figure 3.2 Representative arctic outflow trajectories selected to span chemical outcomes for March. Refer to Figure 3.1 for descriptive information. 61 12 Altitude (km) 10 8 1 6 21 5 4 23 4 1 2 2 3 4 3 0 -100 6 5 45 -50 Longitude 0 50 90 45 80 1 70 21 1 3 2 2 3 -45 4 -90 60 0 5 4 5 3 50 6 40 30 4 5 Figure 3.3 Representative arctic outflow trajectories selected to span chemical outcomes for May. Refer to Figure 3.1 for descriptive information. 62 Madronich and Calvert, 1990; Kirchner and Stockwell, 1996]. Additionally, quantum yields and cross-sections were revised for nitrogen and oxygen-containing compounds [Atkinson, 1994; DeMore et al., 1997; Sander et al., 2000], and rate constants were updated for reactions of nonsubstituted and mono-substituted organic compounds through C4 [Atkinson, 1994], benzene oxidation [Grosjean, 1991; Atkinson, 1994], and inorganics [DeMore et al., 1997]. These revisions are discussed in detail in Chapter 2. Deposition and wet removal are not included in these simulations. Thus, levels of nitric acid (and to a lesser extent, nitroaromatic compounds) build up during the simulations. This does not affect the simulation of NOx levels, as further reactions of these compounds are insignificant in these simulations, but means that mixing ratios presented for these compounds indicate integrated production, and should be treated as upper limits for true mixing ratios in outflowing arctic air. The chemical mechanism used in the present simulations was reduced to 719 species and 2075 reactions by including only those reactions involving chemical species present in the winter–spring arctic free troposphere and their products. The initial conditions were based on previous measurements of arctic or subarctic air and are shown in Tables 3.1 and 3.2. As the initial level of ozone is altitude dependent, ranging from 35 to 80 ppbv in the arctic free troposphere [Logan, 1985; Oltmans, 1993] and because the trajectories simulated here were meant to be representative of the full suite of southward flowing trajectories, simulations were run for each trajectory with both a low-initial-ozone level of 35 ppbv, and a high-initial-ozone level of 80 ppbv. Photolysis rates were calculated at each 15 minute time step along the trajectory using actinic fluxes calculated using Phodis Version 0.40 [Kylling, 1995]. The six-stream pseudo-spherical radiative transfer algorithm was used, assuming clear sky conditions. Fall–winter background aerosol vertical profiles were used for the January and February simulations, while spring–summer 63 Table 3.1 Initial Conditions. Compound N2 O2 H2 O3 CO CO2 CH4 C2 H2 C2 H4 C2 H6 C3 H6 C3 H8 n-butane i-butane n-pentane i-pentane C6 H6 January–March .7808*air density .2095*air density 0.5 ppm 35, 80 ppb 170 ppb 360 ppm 1.8 ppm 0.8 ppb 0.4 ppb 2.7 ppb 0.03 ppb 1.4 ppb 0.6 ppb 0.33 ppb 0.2 ppb 0.25 ppb 0.26 ppb Mixing Ratio April .7808*air density .2095*air density 0.5 ppm 35, 80 ppb 170 ppb 360 ppm 1.8 ppm 0.6 ppb 0.1 ppb 2.2 ppb 0.03 ppb 0.8 ppb 0.25 ppb 0.1 ppb 0.05 ppb 0.1 ppb 0.2 ppb May .7808*air density .2095*air density 0.5 ppm 35, 80 ppb 170 ppb 360 ppm 1.8 ppm 0.3 ppb 0.1 ppb 1.5 ppb 0.03 ppb 0.3 ppb 0.07 ppb 0.03 ppb 0.02 ppb 0.01 ppb 0.15 ppb Notes a a a b c–d c c e–k e–k e–k e–g, j–k e–k e–j f–j f–j f–j f–k a) Based on the composition of air [Graedel and Crutzen, 1993]. b) Oltmans [1993]. Ozone level is altitude dependent; two values were chosen to bound the range of the free troposphere. c) Derwent et al. [1998]. d) Novelli et al. [1998]. e) Solberg et al. [1996b], non-ozone depletion events. f) Solberg et al. [1996a]. g) Laurila and Hakola [1996]. h) Ariya et al. [1998]. i) Jobson et al. [1994]. j) Doskey and Gaffney [1992]. k) Hov et al. [1984]. background aerosol vertical profiles were used for the March–May simulations. A horizontal visibility of 25 km was chosen to be representative of weak arctic haze conditions [Radke et al., 1984]. The albedo was varied depending on the location of the box model along the trajectory: 0.8 for snow and ice encountered north of 60 N (and north of 45 N if west of 55 W); and 0.05 over the open ocean [Kondratyev, 1969]. The subarctic winter model atmosphere [Anderson et al., 1986] used in the calculation of the actinic flux was scaled to the average monthly total ozone column for Barrow and Fairbanks (also includes data from Poker Flat), Alaska, for the time period covering 1986–1998. (M. Clark, 2000, personal communication, Data obtained from NOAA’s Climate Monitoring and Diagnostics Laboratory (CMDL) Ozone and Water Vapor group web site: http://www.cmdl.noaa.gov/ozwv). 64 Table 3.2 Initial Conditions Continued. Mixing Ratio Compound January–March April May Notes NOx 19 ppt 19 ppt 19 ppt l HONO 6 ppt 6 ppt 6 ppt m HNO3 16 ppt 16 ppt 16 ppt n PAN 300 ppt 300 ppt 300 ppt o PPN 54 ppt 54 ppt 54 ppt p methyl nitrate 0 0 0 q ethyl nitrate 0 0 0 r 1-propyl nitrate 3.3 ppt 3.3 ppt 3.3 ppt s–t 2-propyl nitrate 12.4 ppt 12.4 ppt 12.4 ppt s–t 1-butyl nitrate 1.7 ppt 1.7 ppt 1.7 ppt s–t 2-butyl nitrate 18.4 ppt 18.4 ppt 18.4 ppt s–t pentyl nitrate 1.0 ppt 1.0 ppt 1.0 ppt s–t 3-methyl-2-pentyl nitrate 4.8 ppt 4.8 ppt 4.8 ppt s–t 2-pentyl nitrate 5.4 ppt 5.4 ppt 5.4 ppt s–t 3-pentyl nitrate 4.3 ppt 4.3 ppt 4.3 ppt s–t 2-methyl-1-pentyl nitrate 0.8 ppt 0.8 ppt 0.8 ppt s–t l) Estimated from Jaffe et al. [1991], Honrath and Jaffe [1992], Weinheimer et al. [1994], Beine et al. [1996], Rohrer et al. [1997], and Beine et al. [1997a]. This value is consistent with NOx observed in the Arctic during late spring [Ridley et al., 2000], but higher than Ridley’s measurements prior to arctic sunrise. (Model results are insensitive to the initial NOx level.) m) Li [1994], light period. n) Estimated from Bottenheim et al. [1993] period 1 and Bottenheim and Gallant [1989]. Loss reactions of HNO3 are negligible in these simulations, so model results are insensitive to the initial level of HNO3 . o) Estimated from Bottenheim and Gallant [1989], Bottenheim et al. [1993], Beine et al. [1997b], and Beine and Krognes [2000]. High values were given more weight to provide an upper limit for NOx release. For this reason and to allow for comparisons of photochemical processes by month, seasonal variations were not included. p) PPN levels are 18% of PAN levels [S. Bertman, Western Michigan University, personal communication, 2000]. q) There are no reported measurements of methyl nitrate in arctic or subarctic air. r) Measurements of ethyl nitrate have not been reported for the arctic or subarctic. s) Leaitch et al. [1994]. t) Muthuramu et al. [1994]. 65 3.2 Results and Discussion 3.2.1 Nitrogen Oxides The evolution of NOy speciation along the simulated arctic outflow trajectories with low-initialozone levels is shown in Figure 3.4. (Trajectories with high-initial-ozone levels behave similarly to those shown in terms of NOy speciation). Changes in NOy speciation are dominated by net PAN decomposition (which is controlled by temperature) and the fate of NOx (which also depends on sunlight intensity). There is a seasonal variation in the NOy chemistry of arctic outflow. As HNO3 is not removed from the air parcels in these simulations, decreasing amounts of PAN and increasing amounts of HNO3 indicate the degree of NOx release and NOx processing, respectively. The amount of processing increases from January, when only the high-PAN-decomposition simulation shows a change in NOy speciation, to May, when the median- and high-PAN-decomposition simulations demonstrate significant processing. There are some large peaks ( 50 pptv) in the NOx levels, primarily in the high-PAN-decomposition simulations. A high level of NOx is maintained for 2.5 days during the May high-PAN-decomposition simulation. However, increases in NOx are highly damped relative to the declines in PAN. The simulated NOx mixing ratios reflect the balance between temperature-dependent PAN decomposition and a variety of NOx loss reactions. To illustrate this balance, we now examine the budget of NOx more closely. 3.2.1.1 Sources of NOx There are two NOy groups expected to release NOx in the remote low- to mid-troposphere: PAN compounds and alkyl nitrates. Figure 3.5 compares the importance of these NOy groups as NOx 66 300 B 200 100 0 0.0 A 0.5 1.0 1.5 Time (day) 2.0 Jan-Median-PAN-Decomposition 400 300 B 200 500 100 0 1 2 3 4 Time (day) B 200 100 May-Low-PAN-Decomposition 500 A 0.5 1.0 1.5 Time (day) 2.0 300 B 200 100 0 1 2 3 Time (day) 4 B 200 100 A 0 1 2 3 4 Time (day) 5 6 May-Median-PAN-Decomposition 500 A 0 5 300 0 F E D C 400 F E D C 400 2.5 March-Median-PAN-Decomposition A 0 300 500 Mixing Ratio (pptv) Mixing Ratio (pptv) F E D C 400 0 0.0 2.5 500 F E D C Mixing Ratio (pptv) 400 500 Mixing Ratio (pptv) Mixing Ratio (pptv) March-Low-PAN-Decomposition F E D C Mixing Ratio (pptv) Jan-Low-PAN-Decomposition 500 400 F E 300 D C 200 B 100 A 0 5 0 1 2 3 4 Time (day) 5 400 400 300 300 B 200 100 0 200 0 500 Mixing Ratio (pptv) Mixing Ratio (pptv) March-High-PAN-Decomposition F E D C A 1 2 3 4 Time (day) 5 F E D C 400 300 B 200 100 May-High-PAN-Decomposition 500 Mixing Ratio (pptv) Jan-High-PAN-Decomposition 500 F 400 E 300 200 D C B A 100 A 0 0 0 1 2 3 4 Time (day) 5 0 1 2 3 4 Time (day) 5 100 0 A) NOx B) PANs C) RONO2 D) Aromatics E) HNO3 F) Other Inorganics Figure 3.4 The levels of NOx , PAN and PAN homologues, alkyl nitrates, nitro–aromatic compounds, HNO3 , and other inorganic nitrogen compounds (HNO4 , HNO2 , N2 O5 , and NO3 ) are shown as a function of time along the trajectories simulated for January, March, and May with low-initial-ozone levels. The upper plots depict results for the low-PAN-decomposition simulations, the center plots show the median-PAN-decomposition simulations, and the lower plots show the high-PAN-decomposition simulations. NO, shown as the dashed line within NOx , indicates the diurnal cycle, with peaks occurring at solar noon. 67 sources for the low-, median-, and high-PAN-decomposition simulations. The height of the each bar indicates the magnitude of net formation of NOx from each NOy group, integrated over the length of each trajectory and normalized by trajectory duration. As shown in Figure 3.5, PAN is the largest source of NOx, while the PAN homologues (due to NOx release from PPN) and alkyl nitrates are minor sources. (Results shown in Figure 3.5 are from the low-initial-ozone simulations; results from simulations with high-initial-ozone were not qualitatively different.) In the following sections we consider PAN, PAN homologues, and alkyl nitrates in more detail to demonstrate which reactions are most important to the formation of NOx in winter-spring arctic outflow. PAN The thermal decomposition of PAN is the most important source of NOx in these simulations. The decomposition of PAN is pressure dependent and is in equilibrium with its reformation [DeMore et al., 1997], CH3 C(O)OONO2 + M * ) CH3 C(O)OO + NO2 + M: (3.1) PAN photolysis, CH3 C(O)OONO2 + h A ! CH3 C(O)OO + NO2 B ! CH3 CO(O) + NO3 ; (3.2) also releases a small amount of NOx through channel A, the dominant channel. While PAN also reacts with OH, in these simulations this loss process is negligible in comparison to PAN thermal decomposition, even for the trajectories at high altitudes. Net NOx formation occurs when the PAN equilibrium is pushed out of balance by reactions which compete for the peroxyacetyl radical. While on average the most important loss process for 68 Low PAN Decomposition 4 2 May NO3 N2O5 HO2NO2 Nitroaromatics RONO2 HNO3 -2 PAN Homologues 0 PAN Net NOx Production (ppt/day) January March -4 Median PAN Decomposition 20 May 10 NO3 N2O5 HO2NO2 Nitroaromatics RONO2 HNO3 -10 PAN Homologues 0 PAN Net NOx Production (ppt/day) January March -20 High PAN Decomposition 50 May 25 NO3 N2O5 HO2NO2 Nitroaromatics RONO2 HNO3 -25 PAN Homologues 0 PAN Net NOx Production (ppt/day) January March -50 Figure 3.5 Comparison of NOy groups as sources and sinks of NOx . The height of each bar indicates the average net NOx formation or destruction for each NOy group for the low-, median-, and high-PAN-decomposition simulations. 69 the peroxyacetyl radical is reaction with NO2 (occurring 60–80% of the time), during the daytime reactions with NO, CH3 C(O)OO + NO ! CH3 O2 + CO2 + NO2 ; (3.3) A ! CH3CO(OOH) + O2 (3.4) B ! CH3CO(OH) + O3; O2 and HO2 , CH3 C(O)OO + HO2 are equally or even more important than reaction with NO2 . Because there is no net loss of NOx and rapid loss of CH3 C(O)OO in Reactions 3.3–3.4, the thermal decomposition of PAN (Reaction 1) results in the buildup of NOx during the daytime, peaking at sunset. (The longitudinal movement of the trajectories results in a variable-length diurnal cycle, which can be distinguished by examining the levels of NO indicated by the dotted line in Figure 3.4, as peaks in NO coincide with solar noon.) PAN Homologues Peroxypropionyl nitrate (PPN) is the only other PAN compound included in the initial conditions. Its thermal decomposition releases NOx, CH3CH2C(O)OONO2 ! CH3CH2(O)OO + NO2 ; (3.5) accounting for the net NOx formation of the PAN homologues shown in the median- and high-PANdecomposition simulations of Figure 3.5. In the May-low-PAN-decomposition simulations the rate of PPN thermal decomposition is less than the rate of formation of other PAN homologues, RC(O)OO + NO2 ! RC(O)OONO2 ; resulting in a small net loss of NOx to the PAN homologues. (3.6) 70 Alkyl Nitrates Alkyl nitrates release NOx through their photolysis RONO2 + h ! RO + NO2 (3.7) ROR’ + NO2 (3.8) and their reaction with OH, RONO2 + OH A ! O2 ;B ! R(OO)ONO2 ; the photolysis reaction being the dominant source of NOx . As shown in Figure 3.5, alkyl nitrates are a relatively small source of NOx , but are comparable with PAN during the low-PAN-decomposition simulations. Their maximum contribution occurs as sunlight intensity increases in April and May. 3.2.1.2 Sinks of NOx The sinks of NOx are compared in Figure 3.5. The largest sink for NOx in these simulations is the formation of HNO3 , followed by formation of nitroaromatic compounds (2-nitrophenol, 2,4dinitrophenol, and nitrobenzenediol). Figure 3.4 shows a substantial increase in the level of HNO3 and nitroaromatic compounds as a function of time along each trajectory. As noted above, these levels are upper limits of atmospheric mixing ratios, because removal terms are not taken into account. HO2 NO2 is a temporary reservoir for NOx in these simulations, and while it generally results in little net removal of NOx on average (Figure 3.5), levels of HO2NO2 reach up to 20 pptv (5% of NOy ) during several simulations (Group F: Other Inorganics in Figure 3.4). HNO3 There is a shift in the dominant mechanism of HNO3 formation from the dark, low photochemical activity January–March simulations to the light, photochemically active May simulations. During all January–March simulations, and during the April median-PAN-decomposition 71 simulation, HNO3 formation via N2 O5 hydrolysis, NO3 + NO2 + M ! N2 O5 N2 O5 + H2 O ! 2HNO3 ; (3.9) (3.10) is dominant. This is followed in importance by H–atom abstraction of hydrocarbons by NO 3 NO2 + O3 NO3 + RH A ! NO3 + O2 B ! NO + 2O2 ! HNO3 + R (3.11) (3.12) and by OH oxidation of NO2 NO2 + OH + M ! HNO3 + M: (3.13) During April low- and high-PAN-decomposition and all May simulations, when the actinic flux is larger and OH levels are higher, Reaction 3.13 becomes the dominant source of HNO3 formation, followed by N2 O5 hydrolysis (Reactions 3.9–3.10) and H–atom abstraction (Reactions 3.11–3.12). This finding is consistent with the modeling results of Liang et al. [1998], Dentener and Crutzen [1993], and Wang et al. [1998c]. It is believed that N2O5 hydrolysis (Reaction 3.10) is mainly a heterogeneous reaction [Jacob, 2000], although recent studies suggest that the gas-phase reaction may also be important, especially in regions with a low aerosol load [Mentel et al., 1996; Wahner et al., 1998; Allan et al., 1999]. A number of regional and global models have used a pseudo first-order rate constant (k= 0:1 , 1 10,4 s,1 ) to approximate this heterogeneous reaction [Dentener and Crutzen, 1993]. The NCAR Master Mechanism-Version 2.0 treats N2 O5 hydrolysis as a gas–phase reaction. The rate 72 constant was revised to use the gas-phase rate constant recommended by DeMore et al. [1997] (k< 2:0 10,21 cm3 molecules,1 s,1 ). Due to the difficulty in separating the homogeneous and heterogeneous processes of this reaction, this rate constant is an overestimate of the gas-phase-only rate constant and is equal to 4 times the upper limit gas phase rate constant determined by Sverdrup et al. [1987]. As a result, while N2 O5 hydrolysis is modeled as a gas phase process, the rate is consistent with that expected for the combination of homogeneous and heterogeneous reactions. In particular, it is consistent with the rate constant calculated by Dimitroulopoulou and Marsh [1997] for both the heterogeneous and homogeneous processes and is within the range of the yearly mean values calculated by Dentener and Crutzen [1993] for the reaction of N2O5 on sulfate and sea-salt aerosols for this range of latitudes. At any rate, the results presented here are not highly sensitive to the value of the N2O5 hydrolysis rate constant as the overall rate-limiting step in these simulations is the formation of NO3 through the reaction of O3 with NO2. To verify this, simulations were conducted along the January-high-PAN-decomposition trajectory in which a range of reported N2 O5 hydrolysis rate constants were used, varying over 2 orders of magnitude [Hough, 1991; Dimitroulopoulou and Marsh, 1997] and spanning the rate constant used in the revised NCAR Master Mechanism. The resulting levels of NOx and O3 varied by less than 10% and 1% respectively. Nitroaromatic Compounds As a result of oxidation of benzene present in arctic air, several nitroaromatic compounds are formed during these simulations, including 2-nitrophenol, 2nitrophenoxy, 2,4-dinitrophenol, and 1,1-dihydroxy-2-nitrate-3,5-cyclohexadiene. As shown in Figure 3.4, levels of these compounds increase from January to May and from low-PAN-decomposition to high-PAN-decomposition simulations for each of these months. The most important component of this group of compounds is the nitrophenols. 73 There is a significant degree of uncertainty regarding the mechanisms and products of benzene oxidation, which implies that the simulated amounts of nitroaromatics formed are somewhat uncertain. However, the NCAR Master Mechanism-Version 2.0 accurately reflects current understanding (with several minor simplifications which are discussed below). Since nitroaromatics are an important NOx sink in some of these simulations, the oxidation of benzene is examined here. Benzene undergoes oxidation by OH and NO3 . Reaction with OH proceeds primarily through addition with a minor path proceeding by H–atom abstraction. As shown in Figure 3.6, OH addition to benzene (I) produces the hydroxycyclohexadienyl (HCHD) adduct (II). The H–atom abstraction path results in a phenyl radical (III). This radical reacts rapidly with O2 to form a phenyl peroxy radical (IV) that reacts with NO or NO2 to form a phenoxy radical (V), whose reactions are discussed in more detail below. The HCHD adduct (II) can dissociate back to its products (benzene and OH) or react with NO2 or O2 . The reaction of HCHD with NO2, resulting in nitrobenzene (VI), is significant only when NOx levels are high; at room temperature this corresponds to a NOx level > 3:0 1012 molecule cm,3 , a range typically used in environmental chamber studies [Atkinson, 1994]. Earlier studies suggest that the HCHD adduct may also react with NO [Zellner et al., 1985], but this conclusion was disputed [Atkinson, 1994]. The only reaction of the HCHD adduct which is important in the remote troposphere is its reaction with O2. The reaction of HCHD with O2 results in phenol (VII), as the major product, and hydroxy-2,4-cyclohexadienyl-6-peroxy radical (VIII). The hydroxy-2,4cyclohexadienyl-6-peroxy radical undergoes ring-opening and results in products such as glyoxal (CHOCHO). (For a complete discussion of the reactions of the hydroxy-2,4-cyclohexadienyl-6peroxy radical, see Lay et al. [1996].) 74 OH + HO2 O2 (VII) H OH addition OH O2 H NO2 (II) H OH H OO ring opened products (VIII) NO2 + H2O (VI) (I) abstraction by OH or NO3 OO O2 (IV) (III) NO NO2 NO2 NO3 O (V) Figure 3.6 Mechanism of benzene oxidation. 75 In the modified version of the NCAR Master Mechanism-Version 2.0 used here, the reaction of benzene with OH is consistent with these expected reactions. A hydrogen atom abstraction route has been added. The addition route skips over the production of the HCHD adduct, but products of OH addition to benzene are consistent with those expected for the HCHD adduct reaction with O2 : phenol and the hydroxy-2,4-cyclohexadienyl-6-peroxy radical. While nitrobenzene is not produced in the NCAR Master Mechanism, product studies indicate that there is only a small yield (0:0336 0:0078 + (3:07 0:92) 10,16 [NO2] [Atkinson et al., 1989a]) from the reaction of benzene with OH in the presence of NOx . Since these simulations apply to the remote atmosphere and are characterized by low NOx levels, this is a valid simplification. Additionally, the reaction of benzene with NO3 is not included in the NCAR Master Mechanism-Version 2.0. While it is a minor reaction, it may be important during the night or winter, especially at high latitudes. For this reason the reaction of benzene with NO3 was added. Phenol (VII), the primary product of benzene oxidation, is removed quickly from the atmosphere. Phenol reacts with OH during the day, mainly by addition but also by H–atom abstraction, and reacts with NO3 at night. OH addition to phenol results in 1,1-benzenediol (IX), shown in Figure 3.7, and its isomers. For simplicity, the NCAR Master Mechanism-Version 2.0 only considers 1,1benzenediol. H–atom abstraction from phenol is expected to result in the production of phenoxy (V) and HNO3 or H2 O. It is expected that OH–addition is the dominant reaction and that H–atom abstraction is a minor route [Atkinson, 1994]. However, in most of the simulations for January through March, H–atom abstraction by NO3 is the dominant loss reaction for phenol, due to low OH levels. As the actinic flux increases in April and May, OH addition to phenol becomes more important than the reaction with NO3 . An additional loss process for phenolic compounds is wet 76 OH OH OH OH OO O2 OH addition OH (IX) NO NO2 (VII) HO2 OH OH ONO2 O OH NO2 NO2 abstraction by OH or NO3 (X) (XI) (V) abstraction by OH or NO3 OH addition O OH OH NO2 NO2 OH NO2 NO2 ring opened products O2, NO (XIV) NO2 NO2 (XII) OH OH NO2 NO2 (XIII) Figure 3.7 Mechanism of phenol oxidation. O2 ring opened products 77 and dry deposition. While the NCAR Master Mechanism-Version 2.0 does not include terms for deposition, this should not largely affect the levels of gas-phase phenols. First, the lifetime of phenol in these simulations, based on their reaction with NO3 and OH, is relatively short, ranging from 0.2 to 2 days. Second, measurements of four phenols (phenol, 2-nitrophenol, 4-nitrophenol, and 2,4-dinitrophenol) in the gas phase and liquid phase both in and out of clouds, indicate that the phenols are more abundant in the gas phase than in the liquid phase [Lüttke et al., 1997]. The phenoxy radical (V) formed by H–atom abstraction from benzene or phenol may either react with NO2 to form nitrophenol (XI) or with HO2 to reform phenol. Atkinson et al. [1992a] was the first to report the formation of nitrophenol from the reactions of phenol with OH (0:067 0:015 yield of 2-nitrophenol) and NO3 (0:251 0:051 yield of 2-nitrophenol). While they detected only o-nitrosubstituted nitrophenols, other researchers suggest that both 2- and 4-nitrophenol are formed [Grosjean, 1991; Nojima et al., 1975]. For simplicity, in the NCAR Master Mechanism only 2-nitrophenol is produced; it is used to represent all mono-nitrophenols. Benzenediol (IX), formed by the OH addition to phenol, may react with O2 or NO2 . The reaction of benzenediol with O2 proceeds through the trans-addition of O2 . This adduct is then expected to react again with O2 in the presence of NO, resulting in the ring-opened products glyoxal (CHOCHO) and glyoxylic acid (CHOCOOH) [Grosjean, 1991]. In addition to these products, Madronich and Calvert [1989] include several ring retaining products in the NCAR Master Mechanism to balance carbons. These products include 1,1-dihydroxy-2-nitrate-3,5-cyclohexadiene (X), from addition of NO to the peroxy radical, and 1,1-dihydroxy-2-hydroperoxy-3,5-cyclohexadiene (not shown), which is the expected product from a peroxy radical reaction with HO2 . Wiesen et al. [1995] suggest that polyketones may account for 25–30% of the missing carbon in aromatic oxidation. The 78 reaction of benzenediol with NO2 is expected to result in the formation of 2-nitrophenol (XI) and 4-nitrophenol. This reaction pathway is a minor source of nitrophenol. Grosjean [1991] proposes a mechanism for further reaction of the nitrophenols which includes OH addition and H–atom abstraction by OH and NO3. OH addition to nitrophenol results in an adduct (XII) which may react with O2 to form ring opened products or with NO2 to form a dinitrophenol (XIII). The H–atom abstraction from nitrophenol results in a nitrophenoxy radical (XIV) which reacts with NO2 to form a dinitrophenol (XIII). The chemistry of 2-nitrophenol (XI) in the modified NCAR Master Mechanism-Version 2.0 is slightly different than that proposed by Grosjean [1991]. Due to uncertainty in the reaction pathways of nitrophenol and for simplicity, in the modified NCAR Master Mechanism the reaction of 2-nitrophenol with OH proceeds only by OH addition. Excluding the OH reaction route proceeding by H-atom abstraction may result in an underestimation of the levels of dinitrophenol. In addition, the reaction of HO2 with the nitrophenoxy radical (XIV) (not included by Grosjean [1991] nor shown in Figure 3.7) is included by analogy with the phenoxy radical reaction with HO2 ; this reaction results in nitrophenol. Furthermore, for simplicity, the reactions of 2-nitrophenol produce 2,4-dinitrophenol, skipping the intermediate adducts and lumping the theoretically formed 2,6dinitrophenol with 2,4-dinitrophenol. While nitroaromatics are not normally considered a significant sink of NOx , the simulated mixing ratios are consistent with those measured in the gas phase at Great Dun Fell, a rural site in Northern England [Lüttke et al., 1997]. At Great Dun Fell, levels of mono-nitrophenols (sum of 2- and 4-nitrophenol) were observed to be 8.7106 –1.6108 molec cm,3 , while 2,4dinitrophenol levels were 3.3105 –2.8108 molec cm,3 . In our simulations, mono-nitrophenols 79 (2-nitrophenol) were less than 3.0108 molec cm,3 , and 2,4-dinitrophenol levels were less than 1.6108 molec cm,3 . HO2 NO2 Peroxynitric acid (HO2NO2 ) is an important NOx reservoir at cold temperatures. It is formed by the reaction of NO2 with HO2 HO2 + NO2 * ) HO2NO2 : (3.14) HO2 NO2 is the dominant component in the “other inorganic nitrogen” group shown in Figure 3.4. As shown there, several simulations have HO2 NO2 levels which reach up to 20 ppt. However, HO2NO2 is thermally unstable, and as temperature rises HO2NO2 rapidly decomposes (Reaction -3.14). Summary of NOx Cycling The cycling of NOx in arctic air is summarized in Figure 3.8, which shows average NOx net formation and destruction rates during the March and May-highPAN-decomposition simulations with low-initial-ozone levels. (Simulations with high-initial-ozone levels produced qualitatively similar results.) The source of NOx is dominated by PAN thermal decomposition, while HNO3 and nitrophenols are the main terminal sinks of NOx . As a result of PAN decomposition, NOx levels increase significantly in many of the simulations, in some cases remaining above 75 pptv for 2 days or more. However, even these peak NOx levels are much less than the amount of PAN decomposed, as a result of rapid oxidation of the NOx produced. 3.2.2 Ozone The evolution of O3 along each trajectory is shown in Figure 3.9. Each plot contains the results of four simulations for each trajectory with varying initial levels of O3 and PANs. The initial level of 80 PANs HNO3 N2O5 NO3 NOx RNO2 OH OH NO2 RONO2 NO2 NO2 = 0.25 ppt/hr March High PAN Decomposition = 0.25 ppt/hr May High PAN Decomposition Figure 3.8 The average net rates of NOx production and destruction reactions are shown for the March and May high-PAN-decomposition simulations. Rates are indicated by the length of each arrow. (The net formation of N2 O5 from the reaction of NO3 and NO2 is shown by two arrows directed toward N2 O5 , one from NO3 and the other from NOx .). 81 Ozone (ppb) 40 0.5 1.0 1.5 Time (day) 2.0 Ozone (ppb) Ozone (ppb) 100 60 40 1 2 3 4 Time (day) 5 6 40 20 0 1 2 3 4 Time (day) 5 6 2.0 1 2 3 Time (day) 4 40 2 3 4 Time (day) 5 6 6 [PAN] = 300 ppt [PAN] = 0 ppt 60 40 1 2 3 4 Time (day) 5 6 May-High-PAN-Decomposition 100 60 2 4 Time (day) 80 20 0 [PAN] = 300 ppt [PAN] = 0 ppt 1 40 May-Median-PAN-Decomposition 5 80 20 0 60 100 [PAN] = 300 ppt [PAN] = 0 ppt 40 [PAN] = 300 ppt [PAN] = 0 ppt 80 20 0 2.5 March-High-PAN-Decomposition Ozone (ppb) Ozone (ppb) 60 1.0 1.5 Time (day) 60 100 [PAN] = 300 ppt [PAN] = 0 ppt 80 0.5 80 20 0 January-High-PAN-Decomposition 100 40 March-Median-PAN-Decomposition [PAN] = 300 ppt [PAN] = 0 ppt 80 20 0 60 20 0.0 2.5 Jan-Median-PAN-Decomposition 100 80 Ozone (ppb) 60 May-Low-PAN-Decomposition 100 [PAN] = 300 ppt [PAN] = 0 ppt Ozone (ppb) Ozone (ppb) 80 20 0.0 March-Low-PAN-Decomposition 100 [PAN] = 300 ppt [PAN] = 0 ppt Ozone (ppb) Jan-Low-PAN-Decomposition 100 [PAN] = 300 ppt [PAN] = 0 ppt 80 60 40 20 0 1 2 3 4 Time (day) 5 6 Figure 3.9 Ozone mixing ratios are shown as a function of time along each trajectory for the January, March, and May simulations. Solid lines correspond to simulations with [PANs]0 =354 pptv, dashed lines show results for simulations with [PANs]0 =0 pptv. 82 O3 within the arctic free troposphere during winter–spring ranges from approximately 35 to 80 ppb, depending on altitude [Logan, 1985; Oltmans, 1993]. Simulations were conducted with both low (35 ppb) and high (80 ppb) initial levels of ozone to bound the possible outcomes for each trajectory. As shown in Figure 3.9, the ozone trends simulated range from primarily ozone destruction in the simulations with high-initial-ozone to primarily ozone production in the simulations with a lowinitial-ozone. The initial level of PANs (PAN plus PPN) were varied to determine the impact on the production of ozone of elevated levels of PANs in arctic air. One set of simulations has initial levels of PANs equal the values shown in Table 3.2 (totaling 354 ppt), the other has initial PANs equal to 0 ppt. The difference between these simulations is due to the elevated levels of PANs in arctic air. As shown in Figure 3.9, the elevated levels of PANs significantly increase ozone production (or decrease ozone destruction). Ozone is formed by NO2 + h ! NO + O(3 P) (3.15) O(3 P) + O2 + M ! O3 + M: (3.16) Most of this ozone is quickly lost in the conversion of NO to NO2 , NO + O3 ! NO2 + O2 : (3.17) For net ozone production to occur, peroxy radicals must be present to convert NO to NO 2 , HO2 + NO ! OH + NO2 (3.18) CH3O2 + NO ! CH3O + NO2 (3.19) Ri O2 + NO ! Ri O + NO2 : (3.20) 83 Table 3.3 Ozone Production Rates in ppbv/day, averaged over each trajectory for simulations with low- and (high-)initial-ozone levels. Simulation January Low-PAN-decomposition Median-PAN-decomposition High-PAN-decomposition March Low-PAN-decomposition Median-PAN-decomposition High-PAN-decomposition May Low-PAN-decomposition Median-PAN-decomposition High-PAN-decomposition HO2 + NO CH3 O2 + NO Σ(RiO2 + NO) 2.7E-02 (1.8E-02) 8.3E-03 (2.6E-03) 6.6E-02 (3.4E-02) 2.8E-03 (3.5E-03) 2.0E-03 (1.4E-03) 1.6E-02 (1.4E-02) 4.8E-03 (4.4E-03) 1.6E-03 (9.4E-04) 1.7E-02 (1.1E-02) 1.1E-01 (7.7E-02) 8.6E-02 (3.6E-02) 3.0E-01 (1.6E-01) 1.2E-02 (1.4E-02) 1.4E-02 (1.2E-02) 6.7E-02 (6.1E-02) 1.7E-02 (1.5E-02) 1.4E-02 (9.3E-03) 5.9E-02 (4.0E-02) 4.4E-01 (2.7E-01) 1.3E+00 (7.1E-01) 1.9E+00 (1.2E+00) 5.1E-02 (4.8E-02) 2.5E-01 (2.2E-01) 4.6E-01 (4.2E-01) 1.9E-01 (1.4E-02) 7.5E-02 (4.9E-02) 1.3E-01 (9.6E-02) The production of ozone is calculated by P(O3 ) = k3:18[NO][HO2] + k3:19[NO][CH3O2 ] + Σki [NO][Ri O2 ]: (3.21) The importance of each of these terms is compared in Table 3.3. The largest source of O3 in these simulations is Reaction 3.18, accounting for 53–86% of ozone production, followed by Reaction 3.19, which contributes 8–28% of the ozone production. While individual reactions of C2 peroxy radicals with NO are small in comparison to HO2 and CH3 O2 together the C2 peroxy radical reactions with NO are comparable to Reaction 3.19, accounting for 4–19% of ozone production. Production of O3 is not directly dependent on the level of ozone (Equation 3.21). However, the cycling of HOx is affected and in turn affects the cycling of NOx and production of O3 . Compared to simulations with a low-initial-ozone level, simulations with a high-initial-ozone level have higher levels of HOx , due to increased production of OH. This increases the rate of NOx cycling, resulting in lower levels of NOx and higher levels of HNO3 . The lower NOx levels decrease the reaction rates of Equations 3.15–3.17, decreasing the production of O3 . 84 While photolysis is the fastest ozone loss reaction, only a small fraction results in the net loss of ozone. There are two pathways, A O + O(3 P) ! 2 O3 + h (3.22) B O + O(1 D); ! 2 with channel A being dominant. The production of O(3 P) quickly reforms ozone by reaction with O2 , Reaction 3.16. Additionally, most of channel B also reforms ozone by releasing energy in a reaction with N2 or O2 (denoted by M), O(1 D) + M ! O(3P) + M (3.23) followed by reaction 3.16. The fraction of O(1 D) which does not reform O3 results in ozone destruction, O(1D) + H2O ! 2OH: (3.24) Other reactions which result in O3 destruction include reaction of O3 with HO2 and OH, O3 + HO2 ! OH + 2O2 (3.25) O3 + OH ! HO2 + O2 ; (3.26) ozone addition to alkenes, R=R + O3 ! ROO + R=O (3.27) A ! NO3 + O2 (3.28) B ! NO + O(3P) ! NO2 + O(3 P): and the net conversion of NO2 to NO3 , O3 + NO2 NO3 + h (3.29) 85 Table 3.4 Ozone Loss Rates in ppbv/day, averaged over each trajectory for simulations with low- and (high-)initial-ozone levels. Simulation January Low-PAN-decomposition H2 O+ O(1 D) OH+ O3 HO2 + O3 NO2 + O3 Σ(R=R + O3 ) 1.5E-03 (3.5E-03) 2.1E-03 (4.8E-03) 2.9E-02 (6.5E-02) 1.2E-03 (3.7E-03) 1.4E-03 (6.1E-03) 5.5E-03 (2.1E-02) 1.4E-02 (3.7E-02) 3.7E-02 (8.6E-02) 5.8E-02 (1.6E-01) 9.4E-04 (1.8E-03) 2.5E-03 (3.6E-03) 3.8E-03 (6.4E-03) 3.5E-03 (7.5E-03) 1.1E-02 (2.0E-02) 8.4E-03 (1.6E-02) 2.3E-02 (5.3E-02) 1.2E-02 (2.8E-02) 1.0E-01 5.3E-03 (1.9E-02) 5.5E-03 (1.9E-02) 2.0E-02 4.6E-02 (1.3E-01) 8.3E-02 (2.0E-01) 1.4E-01 1.1E-03 (2.3E-03) 3.2E-03 (4.6E-03) 6.7E-03 4.9E-03 (1.0E-02) 1.2E-02 (2.2E-02) 1.9E-02 7.0E-02 (1.5E-01) 3.9E-01 (7.9E-01) 8.7E-01 (1.7E+00) 2.5E-02 (8.0E-02) 1.0E-01 (2.8E-01) 1.6E-01 (4.1E-01) 1.9E-01 (5.4E-01) 5.4E-01 (1.4E+00) 4.7E-01 (1.2E+00) 4.3E-04 (1.2E-03) 7.2E-03 (9.3E-03) 1.5E-02 (2.0E-02) 1.7E-03 (2.9E-03) 2.2E-03 (3.3E-03) 1.8E-03 (3.0E-03) Median-PAN-decomposition High-PAN-decomposition March Low-PAN-decomposition Median-PAN-decomposition High-PAN-decomposition May Low-PAN-decomposition Median-PAN-decomposition High-PAN-decomposition The loss of ozone is calculated by L(O3 ) = k k ( 3:26[OH] + 3:25[HO2 ] + Σki [R=Ri ])[O3 ] + k3:24[O(1 D)][H2O] + (k3:28[O3 ][NO2 ] , J3:29[NO3 ]): (3.30) (3.31) As shown in Table 3.4, O3 destruction in these simulations occurs mainly by reaction of HO2 with O3 (Reaction 3.25). As expected the loss rate of O3 is faster for simulations with high-initial-ozone levels than low-initial-ozone levels. The rate of net ozone production (NOP) is given by: NOP = P(O3 ) , L(O3): (3.32) For the high-PAN simulations the net ozone production rate averaged over the period of simulation (equal to the change in ozone mixing ratio over the trajectory duration normalized by trajectory 86 Table 3.5 Source of NOx and O3 to North Atlantic resulting from elevation PANs in the Arctic. Month January March May Flux of Air (10 STP km3 /day) 1.9 1.5 1.3 6 NOx a a (Gg N/month) 0.0–3.1 0.1–3.4 0.4–7.6 O3 a (Gg O3 /month) 0.1–19.8 0.7–127.8 11.0–712.1 a Ranges of NOx and O3 fluxes are based on all original, un- extended trajectory simulations (low- and high-initial-ozone; low-, median-, and high-PAN-decomposition) for each month. duration) ranges from -0.042 to 0.93 ppb/day for the simulations with low-initial-ozone and from -0.03 to -1.6 ppb/day for the simulations with high-initial-ozone. Peak rates of net ozone production reach up to 6.7 ppb/day. The presence of elevated PAN mixing ratios in the Arctic results in a significant increase in ozone production: these values reflect an increased average NOP of up to 0.03 ppb/day in January, up to 0.15 ppbv/day in March, and up to 1.60 ppbv/day in May. 3.2.3 Flux of NOx and O3 To assess the impact of arctic outflow on the NOx and O3 budgets of the North Atlantic region, an upper limit estimate of the flux of these species is calculated. The flux of NOx and O3 is estimated from the volumetric flux of air which leaves the Arctic and reaches the North Atlantic (defined here as 10–70 W and 20–50 N) [Honrath et al., 1996] and the amount of NOx and O3 produced as a result of elevated levels of PANs in the Arctic. For NOx , this amount is the net amount of NOx released from PAN and PPN (the NOx source). The ozone produced is determined by taking the difference between the integrated net ozone production in the two simulations for each trajectory with different initial levels of PAN and PPN: one with initial PANs set at 354 ppt and the second with no PANs present. The range of fluxes for each month is shown in Table 3.5. The impact of arctic outflow on the NOx and O3 budgets of the North Atlantic is estimated in this way to be 87 < 7.6 Gg N/month and < 712 Gg O3 /month, respectively, where the upper limits would be reached only if all arctic outflow behaved as do the low-initial-ozone, high-PAN-decomposition simulations. Due to limitations of isentropic trajectory calculations, several of these simulations end abruptly in the boundary layer. Subsidence into the boundary layer is expected to have two opposing effects which may influence the flux of NOx and O3 to the North Atlantic. First, NOx and O3 loss rates increase as a result of increased water vapor concentration. Second, the boundary layer is typically warmer than the free troposphere. As elevated levels of PAN subside into the boundary layer, the rate of PAN thermal decomposition is expected to increase, which may increase the impact of NOx and O3 from the Arctic. For example, as shown in Figure 3.2, the March-high-PAN-decomposition simulation enters the boundary layer on day 5, where it remains for 12 hours before the trajectory terminates. During these 12 hours there is a large decrease in PAN (100 ppt) and a corresponding (but much smaller) peak in NOx . However, there is a significant amount of PAN remaining. If the air parcel remains intact it is likely that the PAN will continue to thermally decompose. To determine whether this might result in significantly more ozone formation, additional simulations were conducted, in which the trajectory was extended for 4.5 days in the boundary layer, using the same temperature, pressure, latitude, and longitude as the last point of the trajectory. As shown in Figure 3.10, PAN levels continue to drop, reaching a minimum of 40 ppt, resulting in relatively high levels of NOx for 2–3 days. The increased levels of NOx contribute to increased net ozone production for the low-initial-ozone simulations, as shown in Figure 3.11, while a reduction in net ozone destruction is simulated for the high-initial-ozone simulations. The flux of NOx and O3 to the North Atlantic if this extended simulation were used as the basis would be 7.9 Gg N/month and 536 Gg O3 /month, respectively. Thus, although the resulting NOx release and O3 production 88 March-High-PAN-Decomposition Mixing Ratio (pptv) 500 F 400 E 300 200 D C B A 100 0 0 2 4 6 Time (day) 8 10 Figure 3.10 The effect of extending the duration of the March high-PAN-decomposition trajectory (see text) upon NOy speciation is shown in the form described for Figure 3.4. A) NOx ; B) PANs; C) RONO2 ; D) Nitroaromatics; E) HNO3 ; F) Other Inorganics. March-High-PAN-Decomposition Ozone (ppb) 100 [PAN] = 300 ppt [PAN] = 0 ppt 80 60 40 20 0 2 4 6 Time (day) 8 10 Figure 3.11 The effect of extending the duration of the March high-PAN-decomposition trajectory (see text) upon O3 levels is shown in the form described for Figure 3.9. 89 May-High-PAN-Decomposition Mixing Ratio (pptv) 500 F 400 300 E 200 100 0 0 2 4 6 Time (day) 8 10 D C B A Figure 3.12 The effect of extending the duration of the May high-PAN-decomposition trajectory (see text) upon NOy speciation is shown in the form described for Figure 3.4 A) NOx ; B) PANs; C) RONO2 ; D) Nitroaromatics; E) HNO3 ; F) Other Inorganics. are increased in the extended simulation, they remain less than or approximately equal to those calculated for the May-high-PAN-decomposition simulation. The May-high-PAN-decomposition trajectory also ends abruptly in the boundary layer. However, as shown in Figure 3.12, extended simulations of this trajectory result in only a small increase in the release of NOx , because most of the PAN already decomposed within the first 5.5 days of the simulation. The flux of NOx and O3 to the North Atlantic based on the extended May-high-PAN-decompositionsimulation would be 8.4 Gg N/month and 726 Gg O3 /month. These values are only slightly larger than those from the original, unextended trajectories (less than 11% larger for NOx , and less than 2% larger for O3). For this reason, and because the extended trajectory values are somewhat uncertain (as dilution in the boundary layer is not simulated in the model), the original, unextended flux estimates are used in the remaining discussion. 90 Table 3.6 Comparison of NOx Sources to the North Atlantic Troposphere. Source of NOx North America Europe Africa Aircraft Lightning Stratosphere Arctic, January Arctic, May NOx (Gg N/month) 65–115 7–90 23–85 1.8–2.3 1.4–14 0.7–4.1 < 3.1 < 7.6 Reference Liang et al. [1998] Whelpdale and Galloway [1994] Whelpdale and Galloway [1994] Baughcum et al. [1996] Penner et al. [1991] Roelofs and Lelieveld, Murphy and Fahey [1995, 1994] this work this work The calculated upper limit flux of NOx from the Arctic to the North Atlantic (based on lowinitial-ozone, high-PAN-decomposition simulations) is compared to the flux of NOx from other sources to the North Atlantic troposphere in Table 3.6. The upper limit estimate of NOx due to elevated levels of PANs in arctic outflow is less than 9% of that from the surrounding continental regions of North America, Europe, and Africa together or up to 13% of the North American export of NOx . The largest source of NOx to the North Atlantic is export from North America. Liang et al. [1998] estimate the export of NOx from North America is 65 to 115 Gg N/month during winter– spring, which is 40–60% of their estimated NOy export. Other continental sources to the North Atlantic include Europe and Africa, for which the flux of NOy to the North Atlantic is estimated to be 16.7–150 Gg N/month and 58–142 Gg N/month, respectively [Whelpdale and Galloway, 1994]. Applying the NOx /NOy export ratio from North America as an estimate of that ratio for European and African export results in estimated NOx fluxes of 7–90 Gg N/month from Europe and 23–85 Gg N/month from Africa. Free tropospheric sources of NOx to the North Atlantic include aircraft emissions, lightning, and stratosphere–troposphere exchange (STE). Aircraft emissions of NOx over the North Atlantic region (30–70 N, 10–70 W) are estimated to be 1.8–2.3 Gg N/month for the winter–spring period [Baughcum et al., 1996]. For comparison, the flux of NOx from lightning is estimated using 91 Table 3.7 Comparison of O3 Sources to the North Atlantic Troposphere. Source of Ozone North America Aircraft Stratosphere Arctic, January Arctic, May O3 (Gg O3 /month) 7,800–22,200 65–200 1100–11,000 < 20 < 712 Reference Liang et al. [1998] Baughcum et al. [1996], Flatoy and Hov [1996] see text this work this work the unit flux of NOx from lightning over the North Atlantic Ocean for January (1–10 kg N/km2 yr) estimated by Penner et al. [1991] and the area of the North Atlantic region, defined here as 20–50 N and 70–10 W ( 1:68 107 km2). This results in a flux of 1.4–14 Gg N/month from lightning. Estimates of the global source of NOx from the stratosphere to the troposphere range from 20-60 Gg N/month [Murphy and Fahey, 1994 and references therein], while northern hemisphere estimates range from 5–13 Gg N/month [Roelofs and Lelieveld, 1995]. Assuming that 80% of the flux occurs between 20 and 50 latitude (based on the spatial distribution of the cross-tropopause flux of Wang et al. [1998a]), scaling by area to the North Atlantic region, the flux from the stratosphere is approximately 0.7–4.1 Gg N/month, on an annual basis. (This should be considered a lower limit for spring, when the flux of air across the tropopause is at a maximum [Apenzeller et al., 1996].) While the free tropospheric sources of NOx (aircraft, lightning, and stratosphere–troposphere exchange) are comparable to the flux from the Arctic, the free tropospheric sources are expected to have a greater impact because of their location. These sources are emitted into the upper troposphere and are expected to be the dominant source of NOx in that region [Lamarque et al., 1996; Levy II et al., 1999]. In contrast, outflowing arctic air subsides and warms as it moves southward, releasing NOx through PAN thermal decomposition in the lower to mid-troposphere, a region also affected by combustion emissions from continental sources. 92 The sources of O3 to the North Atlantic troposphere are listed in Table 3.7. As expected from the discussion of NOx sources, the export of pollutants from North America is the largest source of O3 to the North Atlantic troposphere. Liang et al. [1998] estimate 1 Gmol O3 /day is exported directly from the U.S. boundary layer during winter, and 3.9 Gmol O3/day is exported during spring. Additional ozone is expected to form as a result of the export of NOx and PANs. This source is estimated to be 4.8 Gmol O3 /day for winter and 11 Gmol O3/day for spring [Liang et al., 1998]. Together, the total estimated flux of O3 from North American export is thus 5.8–14.9 Gmol O3/day (7800–22,200 Gg O3 /month) during the winter–spring period. The source of O3 from aircraft emissions is estimated to be 65–200 Gg O3 /month. This is based on aircraft NOx emissions [Baughcum et al., 1996] and the estimated average number of O3 molecules produced per NOx molecule emitted from aircraft (10–25 [Flatoy and Hov, 1996]). There have been a number of global and Northern Hemisphere estimates of the flux of ozone from the stratosphere to the troposphere. Most of these estimates are based on the results of models [for example, Murphy and Fahey, 1994; Wauben et al., 1998 and references therein], while some estimate the flux based on observations of transport [Ancellet et al., 1994] or correlations of ozone with N2 O, potential vorticity, or radioactive deposition [Danielsen and Mohnen, 1977; Murphy and Fahey, 1994]. Estimates of the global ozone flux from the stratosphere into the troposphere range from 17 to 120 Tg O3 /month, while estimates of the Northern Hemispheric flux range from 28 to 83 Tg O3 /month. As with the flux of NOx from the stratosphere, these estimates are scaled by area, taking the latitudinal distribution into account, to obtain a flux of O3 from the stratosphere into the North Atlantic troposphere of 1.1–11.0 Tg O3 /month. The amount of O3 produced during arctic outflow, up to 328 Gg O3/month (based on the 93 maximum production in the low-initial-ozone, May-high-PAN-decomposition simulation), is similar to the O3 produced as a result of aircraft emissions. However, these sources impact different regions of the troposphere. The low- to mid-troposphere, the region impacted by arctic outflow, is heavily dominated by the source of ozone from North America. Thus, while the presence of elevated PAN levels in the Arctic is expected to significantly affect NOx and O3 levels over the North Atlantic during arctic outflow events, this impact is small on a seasonal basis in comparison to that resulting from outflow from the North American continent. In conclusion, it is expected that the flux of NOx and O3 resulting from elevated levels of PAN in the Arctic does not have a significant effect on the seasonal budget of NOx or O3 in the North Atlantic troposphere. 3.3 Summary and Conclusions In this study, we used a photochemical model to investigate NOx cycling in arctic outflow and its impact on the tropospheric NOx and O3 budgets over the North Atlantic Ocean. We applied the model to a range of representative trajectories for the months of January–May. The primary source of NOx in these simulations is the thermal decomposition of PAN, which increases from January to May and results in peak levels of NOx reaching 120 pptv. However, the NOx released from PAN is efficiently removed, resulting in the production of HNO3 and, to a lesser extent, nitrophenols. Elevated levels of NOx in arctic outflow increase the rate of net ozone production when compared to simulations which exclude initial levels of PANs. For January, March, and May net ozone production averaged over the trajectory simulations is increased by up to 0.03 ppb/day, up to 0.15 ppb/day, and up to 1.60 ppb/day, respectively. The source of NOx and O3 to the North Atlantic troposphere resulting from arctic outflow was 94 estimated to be 7:6 Gg N/month and 712 Gg O3/month. These estimates were upper limits because seasonal variations in PAN levels have not been included and these estimates are calculated by applying the maximum NOx release and corresponding O3 production obtained for any simulated trajectory to all the trajectories. The NOx source resulting from arctic outflow is comparable to the sources of NOx from stratosphere-troposphere exchange, emissions from aircraft, and lightning to the North Atlantic troposphere. These model simulations indicate that during arctic outflow events, elevated levels of PAN present in the arctic troposphere significantly increase NOx and O3 levels in southward flowing arctic air. However, the North Atlantic tropospheric NOx and O3 budgets are dominated by export from North America. As a result, on a seasonal basis and when episodic transport from both North America and the Arctic are considered, arctic outflow is not expected to have a significant effect on the budgets of NOx and ozone in the North Atlantic troposphere. Chapter 4 Summary and Conclusions The objective of this research was to determine the impact of winter-spring arctic outflow events on the NOx and O3 budgets of the North Atlantic troposphere. To achieve this objective, the photochemical evolution within representative arctic outflow events was simulated using lagrangian, photochemical box-model simulations. As there have been many improvements in the available laboratory kinetic data, the model used in these simulations, the NCAR Master Mechanism, was revised to reflect current recommendations. The mechanism was revised in small increments to determine the effect of mechanism revisions on the simulated levels of NOx and O3 . The revisions to peroxy radical, PAN, and photolysis reactions have the largest effect on the levels of NOx and O3. In comparison to the original mechanism, the revisions to peroxy radical reactions increase the average levels of NOx and O3 by 23.9% and 0.7%, respectively; the PAN revisions decrease the average levels of NOx and O3 by 14.1% and 0.4%, respectively; while the photolysis revisions decrease the average levels of NO x and O3 by 8.4% and 1.0%, respectively. The overall effect of incorporating all mechanism revisions is a smaller 95 96 change in the levels of NOx and O3 . Therefore, it is important to completely update the gas-phase chemical mechanism. This includes updating all the chemical families, as the effects of revisions to individual chemical families counteract each other, damping the net effect. It is also important to update all the species within each of the families, as this work demonstrates that the sum of many small changes have a large net effect. This work indicates that a complete revision of a gas-phase mechanism is preferred over the practice of revising only a few key reactions of the mechanism. To determine the impact of winter–spring arctic outflow events on the NOx and O3 budgets of the North Atlantic troposphere, the chemical evolution of nitrogen oxides were examined in simulations along representative trajectories. The primary source of NOx is the thermal decomposition of peroxy acyl nitrates. The release of NOx from peroxy acyl nitrates increases from January to May and results in peak levels of NOx reaching 120 pptv. However, the NOx released from PAN is efficiently removed, resulting in the production of HNO3 and, to a lesser extent, nitrophenols. Elevated levels of NOx in arctic outflow increase the production rate of ozone. The net ozone production rate averaged over the trajectory simulations is increased for the months of January, March, and May by up to 0.03 ppb/day, up to 0.15 ppb/day, and up to 1.60 ppb/day, respectively. The source of NOx and O3 to the North Atlantic troposphere resulting from arctic outflow is estimated to be 7:6 Gg N/month and 712 Gg O3 /month. While this source is comparable to estimates of ozone produced from aircraft emissions, both are small in comparison to the export of ozone from North America. On a seasonal basis and when episodic transport from both North America and the Arctic are considered, arctic outflow is not expected to have a significant effect on the budgets of NOx and ozone in the North Atlantic troposphere. The findings of this work contribute to the understanding of the processes controlling ozone 97 production and of anthropogenic impacts on the regional and global atmosphere. The redistribution of pollutants through the Arctic during the late winter–early spring provides a mechanism for the transport of ozone and its precursors from regions, such as the former Soviet Union and Eastern Europe, which would otherwise be unimportant to the North Atlantic regional budgets of these compounds. This work, for the first time, quantifies the resulting impact of arctic outflow events on the seasonal NOx and O3 budgets of the North Atlantic troposphere, contributing to our understanding of the effect of anthropogenic emissions on remote regions. Additional research is recommended in the area of model development and validation. Due to the characteristics of the winter–spring free troposphere not all chemical families were revised in this work. For the updated NCAR Master Mechanism to be applicable for other situations it is recommended that the kinetic and mechanistic parameters be investigated and revised as needed for toluene, isoprene, and halogen chemistry. Additional laboratory work is needed to improve our understanding of aromatic chemistry. To validate the mechanism, simulations should be conducted for comparison to environmental chamber data. References Allan, B. J., N. Carslaw, H. Coe, R. A. Burgess, and J. M. C. Plane, Observations of the nitrate radical in the marine boundary layer, J. Atmos. Chem., 33, 129–154, 1999. Ancellet, G., M. Beekmann, and A. Papayannis, Impact of a cutoff low development on downward transport of ozone in the troposphere, J. Geophys. Res., 99, 3451–3468, 1994. Anderson, G. P., S. A. Clough, F. X. Kneizys, J. H. Chetwynd, and E. P. Shettle, AFGL Atmospheric Constituent Profiles (0–120 km), AFGL-TR-86-0110, AFGL (OPI), Hanscom AFB, MA 01736, 1986. Apenzeller, C., J. R. Holton, and K. H. Rosenlof, Seasonal variation of mass transport across the tropopause, J. Geophys. Res., 101, 15,071–15,078, 1996. Ariya, P. A., B. T. Jobson, R. Sander, H. Niki, G. W. Harris, J. F. Hopper, and K. G. Anlauf, Measurements of C2 –C7 hydrocarbons during the Polar Sunrise Experiment 1994: Further evidence for halogen chemistry in the troposphere, J. Geophys. Res., 103, 13,169–13,180, 1998. Atkinson, R., Kinetics and mechanisms of the gas-phase reactions of the hydroxyl radical with organic compounds under atmospheric conditions, Chem. Rev., 85, 69–201, 1985. Atkinson, R., A structure-activity relationship for the estimation of rate constants for the gas-phase reactions of OH radicals with organic compounds, Int. J. Chem. Kinet., 19, 799–828, 1987. Atkinson, R., Kinetics and mechanisms of the gas-phase reactions of the hydroxyl radical with organic compounds, J. Phys. Chem. Ref. Data, Monograph 1, 1989. Atkinson, R., Gas-phase tropospheric chemistry of organic compounds: A review, Atmos. Environ., 24a, 1–41, 1990. Atkinson, R., Kinetics and mechanisms of the gas-phase reactions of the no3 radical with organic compounds, J. Phys. Chem. Ref. Data, 20, 459–507, 1991. Atkinson, R., Gas–phase tropospheric chemistry of organic compounds, J. Phys. Chem. Ref. Data, Monograph No. 2, 1–216, 1994. Atkinson, R., Gas–phase tropospheric chemistry of volatile organic compounds: 1. Alkanes and alkenes, J. Phys. Chem. Ref. Data, 26, 215, 1997. Atkinson, R., and S.M. Aschmann, Rate constants for the reactions of the OH radical with the 98 99 propyl and butyl nitrates and 1-nitrobutane at 2982 K, Int. J. Chem. Kinet., 21, 1123–1129, 1989. Atkinson, R., and W.P.L. Carter, Reactions of alkoxy radicals under atmospheric conditions: The relative importance of decomposition versus reaction with O2, J. Atmos. Chem., 13, 195–210, 1991. Atkinson, R., and A.C. Lloyd, Evaluation of kinetc and mechanistic data for modeling of photochemical smog, J. Phys. Chem. Ref. Data, 13, 315–444, 1984. Atkinson, R., A. C. Lloyd, and L. Winges, An updated chemical mechanism for hydrocarbon/NOx /SO2 photooxidations suitable for inclusion in atmospheric simulation models, Atmos. Environ., 16, 1341–1355, 1982a. Atkinson, R., S.M.Aschmann, W.P.L. Carter, A.M. Winer, and J.N. Pitts Jr., Alkyl nitrate formation from the NOx -air photooxidants of C2 –C8 n-alkanes, J. Phys. Chem., 86, 4563–4569, 1982b. Atkinson, R., W. P. L. Carter, C. N. Plum, A. M. Winer, and J. N. Pitts Jr., Kinetics of the gas-phase reactions of nitrate radicals with a series of aromatics at 296 2 K, Int. J. Chem. Kinet., 16, 887–98, 1984. Atkinson, R., J. Arey, B. Zielinska, and S. M. Aschmann, Kinetics and products of the gas-phase of OH radicals and N2 O5 with naphthalene and biphenyl, Environ. Sci. Tech., 21, 1014–1022, 1987. Atkinson, R., S. M. Aschmann, J. Arey, and W. P. L. Carter, Formation of ring-retaining products from the OH radical-initiated reactions of benzene and toluene, Int. J. Chem. Kinetics, 21, 801–827, 1989a. Atkinson, R., D.L. Baulch, R.A. Cox, Jr. R.F. Hampson, J.A. Kerr, and J. Troe, IUPAC subcommittee on gas kinetic data evaluation for atmospheric chemistry, J. Phys. Chem. Ref. Data, 18, 881, 1989b. Atkinson, R., S.M. Aschmann, and J. Arey, Reactions of OH and NO 3 radicals with phenol, cresols, and 2–nitrophenol at 296 2K, Environ. Sci. Tech., 26, 1397–1403, 1992a. Atkinson, R., D. L. Baulch, R. A. Cox, R.F. Hampson Jr., J.A. Kerr, and J. Troe, Evaluated kinetic and photochemical data for atmospheric chemistry: Supplement iv. IUPAC subcommittee on gas kinetic data evaluation for atmospheric chemistry, J. Phys. Chem. Ref. Data, 21, 1125–1444, 1992b. Atkinson, R., E.C. Tuazon, I. Bridier, and J. Arey, Reactions of NO 3 - naphthalene, adducts with O2 and NO2 , Environ. Sci. Tech., 28, 605–614, 1994. Barrie, L. A., Arctic air pollution: An overview of current knowledge, Atmos. Environ., 20, 643–663, 1986. Barrie, L. A., and J. W. Bottenheim, Sulfur and nitrogen pollution in the arctic atmosphere, in Pollution of the Arctic Atmosphere, edited by W. Sturges, pp. 155–183, Elsevier, New York, 1991. Bass, A., L.C. Glasgow, C. Miller, J.P. Jesson, and S.L. Filken, Temperature dependant absorption cross section for formaldehyde (CH2 O): The effect of formalehyde on stratospheric chlorine chemistry, Planet. Space Sci., 28, 675–679, 1980. 100 Baughcum, S. L., T. G. Tritz, S. C. Henderson, and D. C. Pickett, Scheduled civil aircraft emission inventories for 1992: Database development and analysis, Contractor report NASA CR-4700, NASA, April 1996. Beine, H. J., and T. Krognes, The seasonal cycle of peroxyacetyl nitrate (PAN) in the European Arctic, Atmos. Environ., 34, 933–940, 2000. Beine, H. J., M. Engardt, D. A. Jaffe, O. Hov, K. Holmén, and F. Stordal, Measurements of NOx and aerosol particles at the Ny-Ålesund Zeppelin mountain-station on Svalbard: Influence of local and regional pollution sources, Atmos. Environ., 30, 1067–1079, 1996. Beine, H. J., D. A. Jaffe, F. Stordal, N. Schmidbauer, S. Solberg, M. Engardt, and K. Holmén, NOx during ozone depletion events in the Arctic troposphere at Ny-Ålesund, Svalbard, Tellus, 49B, 556–565, 1997a. Beine, H. J., D. A. Jaffe, J. A. Herring, J. A. Kelley, T. Krognes, and F. Stordal, High-latitude springtime photochemistry. Part I: NOx , PAN, and ozone relationships, J. Atmos. Chem., 27, 127–153, 1997b. Bongartz, A., J. Kames, F. Welter, and U. Schurath, Near-UV absorption cross sections and trans/cis equilibrium of nitrous acid, J. Phys. Chem., 95, 1076–1082, 1991. Bottenheim, J. W., and A. J. Gallant, PAN over the Arctic: Observations during AGASP-2 in April 1986, J. Atmos. Chem., 9, 301–316, 1989. Bottenheim, J. W., L. A. Barrie, and E. Atlas, The partitioning of nitrogen oxides in the lower arctic troposphere during spring 1988, J. Atmos. Chem., 17, 15–27, 1993. Bridier, I., F. Caralp, H. Loirat, R. Lesclaux, B. Veyret, K. H. Becker, A. Reimer, and F. Zabel, ! Kinetic and theoretical studies of the reactions CH3 C(O)O2 + NO2 + M CH3 C(O)O2 NO2 +M between 248 and 393 K and between 30 and 70 torr, J. Phys. Chem., 95, 3594–3600, 1991. Burrows, J., G.S. Tyndall, and G.K. Moortgat, Absorption spectrum of NO 3 and kinetics of the reactions ofNO3 with NO2 , cl, and several stable atmospheric species at 298 K, J. Phys. Chem., 89, 4848–4856, 1985. Canosa-Mas, C., M. Fowles, P.J. Houghton, and R.P. Wayne, Absolute absorption cross-section measurements on NO3 : Evaluation of the titration of NO3 by NO in the determination of absolute concentrations, J. Chem. Soc. Faraday Trans. II, 83, 1465–1474, 1987. Canosa-Mas, C. E., M.D. King, R. Lopez, C.J. Percival, R.P. Wayne, D.E. Shallcross, J.A. Pyle, and V. Daële, Is the reaction between CH3 C(O)O2 and NO3 important in the night-time troposphere?, J. Chem. Soc. Faraday Trans. II, 92, 2211–2222, 1996. Cantrell, C. A., William R. Stockwell, Larry G. Anderson, Kerry L. Busarow, Dieter Perner, Art Schmeltekopf, Jack G. Calvert, and Harold S. Johnston, Kinetic study of the NO3 –CH2 O reaction and its possible role in nighttime tropospheric chemistry, J. Phys. Chem., 89, 1839–146, 1985. Cantrell, C. A., James A. Davidson, Richard E. Shetter, B.A. Anderson, and Jack G. Calvert, The temperature invariance of the NO3 absorption cross section in the 662-nm region, J. Phys. Chem., 91, 5858–5863, 1987. Cantrell, C. A., James A. Davidson, Anthony H. McDaniel, Richard E. Shetter, and Jack G. Calvert, 101 Temperature–dependent formaldehyde cross sectionsin the near–ultraviolet spectral region, J. Phys. Chem., 94, 3902–3908, 1990. Carter, W., and R. Atkinson, Alkyl nitrate formation from the atmospheric photooxidation of alkanes; a revised estimation method, J. Atmos. Chem., 8, 165, 1989. Cox, R., M.C. Addison, J.P. Burrows, and R. Patrick, 14th Informal Conf. Photochem., Newport Beach, CA, March 30-April 3, 1980. Crassier, V., K. Suhre, P. Tulet, and R. Rosset, Development of a reduced chemical scheme for use in mesoscale meterological models, Atmos. Environ., 34, 2633–2644, 2000. Crutzen, P. J., The role of NO and NO2 in the chemistry of the troposphere and stratosphere, Ann. Rev. Earth Planet. Sci., 7, 443–472, 1979. Daële, V., A. Ray, I. Vassali, G. Poulet, and G. Le Bras, Kinetic study of reactions of C2 H5O and C2 H5O2 with NO at 298 K and 0.55–2 torr, Int. J. Chem. Kinet., 27, 1121–1133, 1995. Dagut, P., and M.J. Kurylo, Gas phase UV absorption spectrum of methylperoxy radicals: A reinvestigation, J. Photochem. and Photobio. A:Chem., 51, 133–140, 1990. Danielsen, E. F., and V. A. Mohnen, DUSTSTORM report: Ozone transport and meteorological analyses of tropopause folding, J. Geophys. Res., 82, 5867–5877, 1977. Davidson, J., C.A. Cantrell, A.H. McDaniel, R.E. Shetter, S. Madronich, and J.G. Calvert, Visibleultraviolet absorption cross sections for NO3 scavenging in the troposphere, J. Geophys. Res., 93, 7105–7112, 1988. Davidson, J. A., C.A. Cantrell, R.E. Shetter, A.H. McDaniel, and J.G. Calvert, The NO3 radical decomposition and NO3 scavenging in the troposphere, J. Geophys. Res., 95, 13963–13969, 1990. DeMore, W. B., S. P. Sander, D. M. Golden, R. F. Hampson, M. J. Kurylo, C. J. Howard, A. R. Ravishankara, C. E. Kolb, and M. J. Molina, Chemical kinetics and photochemical data fo use in stratospheric modeling, evaluation number 10, Technical report, NASA Jet Propulsion Laboratory, 1992. DeMore, W. B., S. P. Sander, D. M. Golden, R. F. Hampson, M. J. Kurylo, C. J. Howard, A. R. Ravishankara, C. E. Kolb, and M. J. Molina, Chemical kinetics and photochemical data for use in stratospheric modeling, evaluation number 11, Technical report, NASA Jet Propulsion Laboratory, 1994. DeMore, W. B., S. P. Sander, D. M. Golden, R. F. Hampson, M. J. Kurylo, C. J. Howard, A. R. Ravishankara, C. E. Kolb, and M. J. Molina, Chemical kinetics and photochemical data for use in stratospheric modeling, evaluation number 12, Technical Report JPL Publication 97-4, NASA Jet Propulsion Laboratory, 1997. Dentener, F. J., and P. J. Crutzen, Reaction of N2O5 on tropospheric aerosols: Impact on the global distributions of NOx , O3, and OH, J. Geophys. Res., 98, 7149–7163, 1993. Derwent, R. G., P. G. Simmonds, S. Seuring, and C. Dimmer, Observation and interpretation of the seasonal cycles in the surface concentrations of ozone and carbon monoxide at Mace Head, Ireland from 1990 to 1994, Atmos. Environ., 32, 145–157, 1998. 102 Desai, J., J. Heicklen, A. Bahta, and R. Simonaitis, The photooxidation of isobutyraldehyde vapor, J. Phys. Chem., 34, 137–164, 1986. Dimitroulopoulou, C., and A. R. W. Marsh, Modelling studies of NO3 nighttime chemistry and its effects on subsequent ozone formation, Atmos. Environ., 31, 3041–3057, 1997. Doskey, P. V., and Jeffrey Gaffney, Non-methane hydrocarbons in the arctic atmosphere at Barrow, Alaska, Geophys. Res. Lett., 19, 381–384, 1992. Eberhard, J., and C.J. Howard, Temperature-dependent kinetics studies of the reactions of C 2 H5O2 and n-C3 H7 O2 radicals with NO, Int. J. Chem. Kinet., 28, 731–740, 1996. Fenneteaux, I., P. Colin, A. Etienne, H. Boudries, A. L. Dutot, P. E. Perros, and G. Toupance, Influence of continental sources on oceanic air composition at the eastern edge of the North Atlantic Ocean, TOR 1992-1995, J. Atmos. Chem., 32, 233–280, 1999. Finlayson-Pitts, B. J., and J.N. Pitts, Jr., Atmospheric Chemistry: Fundamentals and Experimental Techniques, John Wiley & Sons, 1986. Finlayson-Pitts, B. J., and J.N. Pitts, Jr., Chemistry of the Upper and Lower Atmosphere: Theory, Experiments, and Applications, Academic Press, 1999. Fishman, J., V. Ramanathan, P. J. Cruzten, and S.C. Liu, Tropospheric ozone and climate, Nature, 282, 818–820, 1979. Flatoy, F., and O. Hov, Three-dimensional model studies of the effect of NO x emissions from aircraft on ozone in the upper troposphere over Europe and the North Atlantic, J. Geophys. Res., 101, 1401–1422, 1996. Forgeteg, S., S. Dobe, and T. Berces, The effect of pressure on the primary photochemical process of n-butyraldehyde at 313 nm, React. Kinet. Catal. Lett., 9, 331–336, 1978. Forgeteg, S., T. Berces, and S. Dobe, The kinetics and mechanism of n-butylaldehyde photolysis in the vapor phase at 313 nm, Int. J. Chem. Kinet., 11, 219–237, 1979. Frost, M., and I.W.M. Smith, Rate constants for the reactions of CH3 O and C2 H5 O with NO over a range of temperature and total pressure, J. Chem. Soc. Faraday Trans. II, 86, 1757–1762, 1990a. Frost, M., and I.W.M. Smith, Rate constants for the reactions of CH3 O and C2 H5 O with NO2 over a range of temperature and total pressure, J. Chem. Soc. Faraday Trans. II, 86, 1751–1756, 1990b. Gaffney, J. S., R. Fajer, G. I. Senum, and J. H. Lee, Measurement of the reactivity of OH with methyl nitrate: Implications for prediction of alkyl nitrate-OH reaction rates, International Journal of Chemical Kinetics, 18, 399–407, 1986. Gardner, E., P.D. Sperry, and J.G. Calvert, Photodecomposition of acrolein in O2 - N2 mixtures, J. Phys. Chem., 91, 1922–1930, 1987. Gery, M. W., G. Z. Whitten, J. P. Killus, and M. C. Dodge, A photochemical kinetics mechanism for urban and regional scale computer modeling, J. Geophys. Res., 94, 12925–12956, 1989. Graedel, T. E., and P. J. Crutzen, Atmospheric Change: An Earth System Perspective, W. H. Freeman and Company, 1993. Grosjean, D., Atmospheric chemistry of toxic contaminants 1. reaction rates and atmospheric 103 persistence, J. Air Waste Manage. Assoc., 40, 1397–1402, 1990. Grosjean, D., Atmospheric fate of toxic aromatic compounds, The Science of the Total Environment, 100, 367–414, 1991. Hamlin, A. J., Transport of ozone precursors from the arctic troposphere to the North Atlantic region, Master’s thesis, Michigan Technological University, 1995. Hamlin, A. J., and R. E. Honrath, A modeling study of the impact of winter–spring arctic outflow on the NOx and O3 budgets of the North Atlantic troposphere, J. Geophys. Res., in press, 2002. Heicklen, J., J. Desai, A. Bahta, C. Harper, and R. Simonaitis, The temperature and wavelength dependance of the photooxidation of propionaldehyde, J. Photochem., 34, 117–135, 1986. Herring, J. A., D. A. Jaffe, H. J. Beine, S. Madronich, and D. R. Blake, High-latitude springtime photochemistry. Part II: Sensitivity studies of ozone production, J. Atmos. Chem., 27, 155–178, 1997. Honrath, R. E., and D. A. Jaffe, The seasonal cycle of nitrogen oxides in the Arctic troposphere at Barrow, Alaska, J. Geophys. Res., 97, 20,615–20,630, 1992. Honrath, R. E., A. J. Hamlin, and J. T. Merrill, Transport of ozone precursors from the Arctic troposphere to the North Atlantic region, J. Geophys. Res., 101, 29,335–29,351, 1996. Horie, O., and G.K. Moortgat, Reactions of CH3 C(O)O2 radicals with CH3 O and HO2 between 263 and 333 K, J. Chem. Soc. Faraday Trans. II, 88, 3305–3312, 1992. Hough, A., Development of a two-dimensional global tropospheric model: Model chemistry, J. Geophys. Res., 96, 7325–7362, 1991. Hov, O., S. A. Penkett, I. A. A. Isaksen, and A. Semb, Organic gases in the Norwegian Arctic, Geophys. Res. Lett., 11, 425–428, 1984. Jacob, D. J., Heterogeneous chemistry and tropospheric ozone, Atmos. Environ., 34, 2131–2159, 2000. Jaffe, D. A., R. E. Honrath, J. A. Herring, S.-M. Li, and J. D. Kahl, Measurements of nitrogen oxides at Barrow, Alaska, during spring: Evidence for regional and northern hemispheric sources of pollution, J. Geophys. Res., 96, 7395–7405, 1991. Jenkin, M. E., R. A. Cox, G. Hayman, and L. J. Whyte, Kinetic study of the reactions methylperoxy + methylperoxy and methylperoxy + hydroperoxy using molecular modulation spectroscopy, J. Chem. Soc. Faraday Trans. II, 84, 913–30, 1988. Jenkin, M. E., S. M. Saunders, and M. J. Pilling, The tropospheric degradation of volatile organic compounds: a protocol for mechanism development, Atmos. Environ., 31, 81–104, 1997. Jobson, B. T., H. Niki, Y. Yokouchi, J. Bottenheim, F. Hopper, and R. Leaitch, Measurements of C2 –C6 hydrocarbons during the Polar Sunrise Experiment: Evidence for Cl atom and Br atom chemistry, J. Geophys. Res., 99, 25,355–25,368, 1994. Johnston, H., C.A. Cantrell, and J.G. Calvert, Unimolecular decompositon of NO3 to form NO and O2 and a review of N2O5 /NO3 kinetics, J. Geophys. Res., 91, 5159–5172, 1986. Johnston, H. S., H. F. Davis, and Y. T. Lee, No3 photolysis product channels: Quantum yields from 104 observed energy thresholds, J. Phys. Chem., 100, 4713–4723, 1996. Kerr, J. A., and D. W. Stocker, Kinetics of the reactions of hydroxyl radicals with alkyl nitrates and with some oxygen-containing organic compounds studied under simulated atmospheric conditions, Journal of Atmospheric Chemistry, 4, 253–262, 1986. Kirchner, F., and W. R. Stockwell, Effect of peroxy radical reactions on the predicted concentrations of ozone, nitrogenous compounds, and radicals, J. Geophys. Res., 101, 21,007–21,022, 1996. Kirchner, F., and W. R. Stockwell, Correction to “Effect of peroxy radical reactions on the predicted concentrations of ozone, nitrogenous compounds, and radicals”, J. Geophys. Res., 102, 10,871, 1997. Kondratyev, K. Y., Radiation in the Atmosphere, Academic Press, New York, 1969. Kurylo, M., T.J. Wallington, and P.A. Ouellette, Measurements of the UV absorption cross section for hydroperoxy and methylperoxy in gas phase, J. Photochem., 39, 201–215, 1987. Kylling, A., Phodis, a program package for calculation of photodissociation rates in the Earth’s atmosphere, available by anonymous ftp to kaja.gi.alaska.edu, cd pub/arve, 1995. Lamarque, J.-F., G. P. Brasseur, P. G. Hess, and J.-F. Müller, Three-dimensional study of the relative contributions of the different nitrogen sources in the troposphere, J. Geophys. Res., 101, 22,955–22,968, 1996. Langford, A., and C.B. Moore, Collision complex formation in reactions of formyl radicals with nitric oxide and oxygen, J. Chem. Phys., 80, 4211–4221, 1984. Laurila, T., and H. Hakola, Seasonal cycle of C2 –C5 hydrocarbons over the Baltic Sea and Northern Finland, Atmos. Environ., 30, 1597–1607, 1996. Lay, T. H., J. W. Bozzelli, and J. H. Seinfeld, Atmospheric photochemical oxidation of benzene: Benzene + OH and the benzene–OH adduct (hydroxyl–2,4–cyclohexadienyl) + O2, J. Phys. Chem., 100, 6543–6554, 1996. Leaitch, W. R., L. A. Barrie, J. W. Bottenheim, S. M. Li, P. B. Shepson, K. Muthuramu, and Y. Yokouchi, Airborne observations related to ozone depletion at polar sunrise, J. Geophys. Res., 99, 25,499–25,517, 1994. LeBras, G., editor, Chemical Processes in Atmospheric Oxidation: Laboratory Studies of Chemistry Related to Tropospheric Ozone, Springer–Verlag, New York, 1997. Lelieveld, J., and Frank J. Dentener, What controls tropospheric ozone?, J. Geophys. Res., 105, 3531–3551, 2000. Levy II, H., W. J. Moxim, A. A. Klonecki, and P. S. Kasibhatla, Simulated tropospheric NO x : Its evaluation, global distribution and individual source contributions, J. Geophys. Res., 104, 26,279–26,306, 1999. Li, S.-M., Equilibrium of particle nitrite with gas phase HONO: Tropospheric measurements in the high Arctic during polar sunrise, J. Geophys. Res., 99, 25,469–25,478, 1994. Liang, J., L. W. Horowitz, D. J. Jacob, Y. Wang, A. M. Fiore, J. A. Logan, G. M. Gardner, and J. W. Munger, Seasonal budgets of reactive nitrogen species and ozone over the United States, and 105 export fluxes to the global atmosphere, J. Geophys. Res., 103, 13,435–13,450, 1998. Lightfoot, P. D., R. Lesclaux, and B. Veyret, Flash photolysis study of the methylperoxy + methylperoxy reaction: rate constants and braching ratios from 284-573 K, J. Phys. Chem., 94, 700–707, 1990. Lightfoot, P., R.A. Cox, J.N. Crowley, M. Destriau, G.D. Hayman, M.E. Jenkin, and G.K. Moortgat, Organic peroxy radical: Kinetics, spectroscopy and tropospheric chemistry, Atmos. Environ., 26A, 1806–1963, 1992. Logan, J. A., Tropospheric ozone: Seasonal behavior, trends, and anthropogenic influence, J. Geophys. Res., 90, 10,463–10,482, 1985. Luke, W., and R.R. Dickerson, Direct measurements of the photolysis rate coefficient of ethyl nitrate, Geophys. Res. Lett., 15, 1181–1184, 1988. Luke, W., R.R Dickerson, and L.J. Nunnermacker, Direct measurements of the photolysis rate coefficients and Henry’s law constants of several alkyl nitrates, J. Geophys. Res., 94, 14905– 14921, 1989. Lurmann, F. W., W. P. Carter, and L. A. Coyner, A surrogate species chemical reaction mechanism for urban–scale air quality simulation models: Vol-I Adaptation of the mechanism, Final Report, EPA Contract No. 68-02-4104, Atmospheric Sciences Research Laboratory, Research Triangle Park, NC., Technical report, 1987. Lüttke, J., V. Scheer, K. Levsen, G. Wünsch, J. N. Cape, K. J. Hargreaves, R. L. Storeton-West, K. Acker, W. Wieprect, and B. Jones, Occurence and formation of nitrated phenols in and out of cloud, Atmos. Environ., 31, 2637–2648, 1997. Madronich, S., and J. G. Calvert, The NCAR Master Mechanism of the gas phase chemistry— Version 2.0, Technical Report NCAR/TN-333+STR, National Center for Atmospheric Research, Boulder, Colorado, May 1989. Madronich, S., and Jack G. Calvert, Permutation reactions of organic peroxy radicals in the troposphere, J. Geophys. Res., 95, 5697–5715, 1990. Maricq, M. M., and Joseph J. Szente, Kinetics of the reaction between ethylperoxy radicals and nitric oxide, J. Phys. Chem., 100, 12374–12379, 1996. Marinelli, W., D.M. Swanson, and H.S. Johnston, Absorption cross-section and line shape for the nitrogen trioxide (O-O) band, J. Chem. Phys., 76, 2864–2870, 1982. Martinez, R. D., A. A. Buitrago, N. W. Howell, C. H. Hearn, and J. A. Joens, The near U.V. absorption spectra of several aliphatic aldehydes and ketones at 300 K, Atmos. Environ., 26A, 785–792, 1992. Mazely, T. L., R. R. Friedl, and S. P. Sander, Quantum yield of NO3 from peroxyacetyl nitrate photolysis, J. Phys. Chem., 101, 7090–7097, 1997. McAdam, K., B. Veyret, and R. Lesclaux, UV absorption spectra of hydroperoxo (HO2 ) and hydroperoxymethyl (C3 O2 ) radicals and the kinetics of their mutual reactions at 298 K, Chem. Phys. Lett., 133, 39–44, 1987. 106 Meller, R., W. Raber, J.N. Crowley, M.E. Jenkin, and G.K. Moortgat, The UV-visible absorption spectrum of methylglyoxal, J. Photochem. and Photobiol., 62, 163–171, 1991. Mentel, T. F., D. Bleilebens, and A. Wahner, A study of nighttime nitrogen oxide oxidation in a large reaction chamber—the fate of NO2 , N2 O5, HNO3, and O3 at different humidities, Atmos. Environ., 30, 4007–4020, 1996. Meyrahn, H., J. Pauly, W. Schneider, and P. Warneck, Quantum yields for the photodissociation of acetone in air and an estimate for the life time of acetone in the lower troposphere, J. Atmos. Chem., 4, 277–291, 1986. Mineshos, G., and S. Glavas, Thermal decomposition of peroxypropionyl nitrate: Kinetics of the formation of nitrogenous products, React. Kinet. Catal. Lett., 45, 305–312, 1991. Moortgat, G., W. Seiler, and P. Warneck, Photodissociation of formaldehyde in air: carbon monoxide and diatomic hydrogen quantum yields at 220 and 300 K, J. Chem. Phys., 78, 1185–1190, 1983. Moortgat, G., B. Veyret, and R. Lesclaux, Kinetics of the reaction of hydroperoxo (HO 2 ) with peroxyacetyl [CH3 C(O)O2 ] in the temperature range 253-368 K, Chem. Phys. Lett., 160, 443– 447, 1989. Moxim, W. J., H. Levy II, and P. S. Kasibhatla, Simulated global tropospheric PAN: Its transport and impact on NOx , J. Geophys. Res., 101, 12,621–12,638, 1996. Murphy, D. M., and D. W. Fahey, An estimate of the flux of stratospheric reactive nitrogen and ozone into the troposphere, J. Geophys. Res., 99, 5325–5332, 1994. Muthuramu, K., P. B. Shepson, J. W. Bottenheim, B. T. Jobson, H. Niki, and K. G. Anlauf, Relationships between organic nitrates and surface ozone destruction during Polar Sunrise Experiment 1992, J. Geophys. Res., 99, 25,369–25,378, 1994. Nicovich, J., and P.H. Wine, Temperature-dependent absorption cross sections for hydrogen peroxide vapor, J. Geophys. Res., 93, 2417–2421, 1988. Nielsen, O. J., Howard W. Sidebottom, Michael Donlon, and Jack Treacy, Rate constants for the gas-phase reactions of OH radicals and Cl atoms with n-alkyl nitrites at atmospheric pressure and 298 K, Int. J. Chem. Kinet., 23, 1095–1109, 1991a. Nielsen, O. J., Howard W. Sidebottom, Michael Donlon, and Jack Treacy, An absolute and realtive rate study of the gas-phase reaction of hydroxyl radicals and cholrine atoms with n-alkyl nitrates, Chem. Phys. Lett., 178, 163–170, 1991b. Niki, H., P.D. Maker, C.M. Savage, and M.D. Hurley, Fourier transform infrared study of the kinetics and mechanisms for the Cl-atom and OH-radical initiated oxidation of glycolaldehyde, J. Phys. Chem., 91, 2174–2178, 1987. Nojima, K., K. Fukaya, S. Fukui, and S. Kanno, Studies on photochemistry of aromatic hydrocarbons II: The formation of nitrophenols and nitrobenzene by the photochemical reaction of benzene in the presence of nitrogen monoxide, Chemosphere, 4, 77–82, 1975. Novelli, P. C., K. A. Masarie, and P. M. Lang, Distributions and recent changes of carbon monoxide in the lower troposphere, J. Geophys. Res., 103, 19015–19033, 1998. 107 Ohmori, K., K. Yamasaki, and H. Matsui, Pressure dependence of the rate constant for the reaction of methoxyl with nitric oxide, Bull. Chem. Soc. Jpn., 66, 51–56, 1993. Oltmans, S. J., Climatology of Arctic and Antarctic tropospheric ozone, In Niki, H., and K. H. Becker, editors, The Tropospheric Chemistry of Ozone in the Polar Regions, volume I 7 of NATO ASI Series, pp. 25–40, Springer-Verlag, Berlin, 1993. Penner, J. E., C. S. Atherton, J. Dignon, S. J. Ghan, J. J. Walton, and S. Hameed, Tropospheric nitrogen: A three-dimensional study of sources, distributions, and deposition, J. Geophys. Res., 96, 959–990, 1991. Plumb, I., K.R. Ryan, J.R. Steven, and M.F.R. Mulcahy, Kinetics of the reaction of C 2 H5 O2 with NO at 295K, Int. J. Chem. Kinet., 14, 183–194, 1982. Plum, C., E. Sanhueza, R. Atkinson, W.P.L. Carter, and J.N. Pitts Jr., Hydroxyl radical rate constants and photolysis rate of -dicarbonyls, Environ. Sci. Tech., 17, 479, 1983. Radke, L. F., J.H. Lyons, D.A. Hegg, P.V. Hobbs, and I.H. Bailey, Airborne observations of arctic aerosols. I: Characteristics of arctic haze, Geophys. Res. Lett., 11, 393–396, 1984. Ravishankara, A., and R.L. Mauldin, Temperature dependence of the NO3 cross section in the 662-nm region, J. Geophys. Res., 91, 8709–8712, 1986. Ravishankara, A., and P.H. Wine, Absorption cross section for nitrogen trioxide between 565 and 673 nm, Chem. Phys. Lett., 101, 73–78, 1983. Ravishankara, A., J.M. Nicovich, R.L. Thompson, and F.P. Tully, Kinetic study of the reaction of OH with H2 and D2 from 250 to 1050 K, J. Phys. Chem., 85, 2498–2503, 1981. Ravishankara, A., P.H. Wine, C.A. Smith, P.E. Barbone, and A. Torabi, N2 O5 photolysis: Quantum yields for NO3 and O(3 P), J. Geophys. Res., 91, 5355–5360, 1986. Ridley, B., J. Walega, D. Montzka, F. Grahek, E. Atlas, F. Flocke, V. Stroud, J. Deary, A. Gallant, H. Boudries, J. Bottenheim, K. Anlauf, D. Worthy, A. L. Sumner, and P. Shepson, Is the Arctic surface layer a source and sink of NOx in winter/spring?, J. Atmos. Chem., 36, 1–22, 2000. Roberts, J. M., Reactive odd–nitrogen (NOy) in the atmosphere, In Singh, H. B., editor, Composition, Chemistry, and Climate of the Atmosphere, Van Nostrand Reinhold, 1995. Roberts, J. M., and R. W. Fajer, UV absorption cross sections of organic nitrates of potential atmospheric importance and estimation of atmospheric lifetimes, Environ. Sci. Tech., 23, 945– 951, 1989. Roehl, C., D. Bauer, and G.K. Moortgat, Absorption spectrum and kinetics of the acetyl peroxy radical, J. Phys. Chem., 100, 4038–4047, 1996. Roelofs, G., and J. Lelieveld, Distribution and budget of O 3 in the troposphere calculated with a chemistry general circulation model, J. Geophys. Res., 100, 20983–20998, 1995. Rogers, J. D., Ultraviolet absorption cross sections and atmospheric photodissociation rate constants for formaldehyde, J. Phys. Chem., 94, 4011–4015, 1990. Rohrer, F., D. Brüning, and D. H. Ehhalt, Tropospheric mixing ratios of NO obtained during TROPOZ II in the latitude region 67N–56S, J. Geophys. Res., 102, 25,429–25,449, 1997. 108 Sander, S., Temperature dependence of the NO3 absorption spectrum, J. Phys. Chem., 90, 4135– 4142, 1986. Sander, S., and R.T. Watson, Temperature dependence of the self-reaction of methyldioxy radicals, J. Phys. Chem., 85, 2960–2964, 1981. Sander, S. P., R. R. Friedl, W. B. DeMore, D. M. Golden, M. J. Kurylo, R. F. Hampson, R. E. Huie, G. K. Moortgat, A. R. Ravishankara, C. E. Kolb, and M. J. Molina, Chemical kinetics and photochemical data for use in stratospheric modeling, supplement to evaluation 12: Update of key reactions, evaluation number 13, Technical report, NASA Jet Propulsion Laboratory, 2000. Schneider, W., G.K. Moortgat, J.P. Burrows, and G. Tyndall, Absorption cross-section of nitrogen dioxide in the UV and visible region (200-700 nm) at 298 K, J. Photochem. Photobiol., 40, 195–217, 1987. Schurath, U., and V. Wipprecht, Reactions of peroxyacyl radicals, In Proc. 1st European Symp. on the Physico-Chemical Behaviour of Atmospheric Pollutants, pp. 157–166, 1980. Seinfeld, J. H., Ozone air quality models: A critical review, J. Air Poll. Control Assoc., pp. 616–645, 1988. Simon, F. G., W. Schneider, and G. K. Moortgat, UV-absorption spectrum of the methyl radical and the kinetics of its disproportionation reaction at 300 K, Int. J. Chem. Kinet., 22, 791–813, 1990. Singh, H. B., Reactive nitrogen in the troposphere, Env. Sci. Tech., 21, 320–327, 1987. Singh, H. B., and P. L. Hanst, Peroxyacetyl nitrate (PAN) in the unpolluted atmosphere: An important reservoir for nitrogen oxides, Geophys. Res. Lett., 8, 941–944, 1981. Solberg, S., C. Dye, N. Schmidbauer, A. Herzog, and R. Gehrig, Carbonyls and nonmethane hydrocarbons at rural European sites from the Mediterranean to the Arctic, J. Atmos. Chem., 25, 33–66, 1996a. Solberg, S., N. Schmidbauer, A. Semb, F. Stordal, and O. Hov, Boundary-layer ozone depletion as seen in the Norwegian Arctic in spring, J. Atmos. Chem., 23, 301–332, 1996b. Staffelbach, T., J.J. Orlando, G.S. Tyndall, and J.G. Calvert, The UV-visible absorption spectrum and photolysis quantum yields of methylglyoxal, J. Geophys. Res., 100, 14189–14198, 1995. Stockwell, W., On the HO2 + HO2 reaction: Its misapplication in atmospheric chemistry models, J. Geophys. Res., 100, 11695–11698, June 1995. Stockwell, W. R., P. Middleton, J.S. Chang, and X. Tang, The second generation regional acid deposition model chemical mechanism for regional air quality modeling, J. Geophys. Res., 95, 16,343–16,367, 1990. Stockwell, W. R., F. Kirchner, M. Kuhn, and S. Seefeld, A new mechanism for regional atmospheric chemistry modeling, J. Geophys. Res., 102, 25,847–25,880, 1997. Sverdrup, G. M., C. W. Spicer, and G. F. Ward, Investigation of the gas phase reaction of dinitrogen pentoxide with water vapor, Int. J. Chem. Kinet., 19, 191–205, 1987. Talukdar, R., S.C. Herndon, J.B. Burkholder, J.M Roberts, and A.R. Ravishankara, Atmospheric fate of several alkyl nitrates: Part 1 Rate coefficeients of the reactions of alkyl nitrates with 109 isotopically labelled hydroxyl radicals, J. Chem. Soc. Faraday Trans. II, 93, 2787–2796, 1997. Taylor, W., T.D. Allston, M.J. Moscato, G.B. Fazakas, R. Kozlowski, and G.A. Takacs, Atmospheric photodissociation lifetimes for nitromethane, methyl nitrite, and methyl nitrate, Int. J. Chem. Kinet., 12, 231–240, 1980. Turberg, M., D.M. Giolando, C. Tilt, T. Soper, S. Mason, M. Davies, P. Klingensmith, and G.A. Takacs, Atmospheric photochemistry of alkyl nitrates, J. Photochem. Photobiol., A51, 281–292, 1990. Tyndall, G., John J. Orlando, and Jack G. Calvert, Upper limit for the rate coefficient for the reaction HO2 + NO2 ! HONO + O2 , Environ. Sci. Tech., 29, 202–206, 1995. Vaghjiani, G., and A.R. Ravishankara, Absorption cross sections of CH 3 OOH, H2O2 , and D2O2 vapors between 210 and 365 nm at 297 K, J. Geophys. Res., 94, 3487–3492, 1989. Wahner, A., T. F. Mental, and M. Sohn, Gas-phase reaction of N2 O5 with water vapor: Importance of heterogeneous hydrolysis of N2 O5 and surface desorption of HNO3 in a large Teflon chamber, Geophys. Res. Lett., 25, 2169–2172, 1998. Wang, Y., D. J. Jacob, and J. A. Logan, Global simulation of tropospheric O 3 -NOx -hydrocarbon chemistry: 1. Model formulation, J. Geophys. Res., 103, 10713–10726, 1998a. Wang, Y., J. A. Logan, and D. J. Jacob, Global simulation of tropospheric O 3 -NOx -hydrocarbon chemistry: 3. Origin of tropospheric ozone and effects of nonmethane hydrocarbons, J. Geophys. Res., 103, 10,757–10,767, 1998b. Wang, Y., J. A. Logan, and D. J. Jacob, Global simulation of tropospheric O 3 -NOx -hydrocarbon chemistry: 2. Model evaluation and global ozone budget, J. Geophys. Res., 103, 10727–10756, 1998c. Wayne, R., I. Barnes, P. Biggs, J.P. Burrows, C.E. Canosa-Mas, J. Hjorth, G. LeBras, G.K. Moortgat, D. Perner, G. Poulet, G. Restelli, and H. Sidebottom, The nitrate radical: physics, chemistry, and the atmosphere, Atmos. Environ., 25A, 1–203, 1991. Weinheimer, A. J., J. G. Walega, B. A. Ridley, B. L. Gary, D. R. Blake, N. J. Blake, F. S. Rowland, G. W. Sachse, B. E. Anderson, and J. E. Collins, Meridional distributions of NOx , NOy , and other species in the lower stratosphere and upper troposphere during AASE II, Geophys. Res. Lett., 21, 2583, 1994. Whelpdale, D. M., and J. N. Galloway, Sulfur and reactive nitrogen oxide fluxes in the North Atlantic atmosphere, Global Biogeochem. Cycles, 8, 481–493, 1994. Wiesen, E., I. Barnes, and K. H. Becker, Study of the OH-initiated degradation of the aromatic photooxidation product 3,4-dihydroxy-3-hexene-2,5-dione, Environ. Sci. Tech., 29, 1380–1386, 1995. Williams, J., private communication, 1994a. Williams, J., A study of the atmospheric chemistry of alkyl nitrates, Ph.D. thesis, University of East Anglia, 1994b. WMO, Atmospheric ozone 1985: Assessment of our understanding of the processes controlling the 110 present distribution and change, rep. 16, chaps. 5 and 10, World Meteorological Organization, Global Ozone Res. Monit. Prog., Geneva, 1986. Zellner, R., B. Fritz, and M. Preidel, A cw UV laser absorption study of the reactions of the hydroxy–cyclohexadienyl radical with NO2 and NO, Chem. Phys. Lett., 121, 412–416, 1985. Zellner, R., B. Fritz, and K. Lorenz, Methoxy formation in the reaction of CH3 O2 radicals with no, J. Atmos. Chem., 4, 241–251, 1986. Appendix A Chemical Codes The NCAR Master Mechanism uses a coding system to identify chemical species. This coding system, developed by Madronich and Calvert [1989], is briefly described in this appendix to aid in the reading of reactions described in Appendix B. The chemical code is written explicitly if the compound can be expressed unambigously in 4 characters or less (e.g., NO2, O3). Otherwise the code is constructed based on the functional groups and the number of carbons in the molecule. The first character indicates the most reactive functional group, the second character the second most reactive functional group. (A list of the numbers and letters used to identify functional groups are shown in Table A.1. This information was taken from the file README [Madronich and Calvert, 1989].) The third character in the code indicates the number of carbon atoms in the compound, while the fourth character is a counter used to distinguish between species with the same first 3 charaters. For example c041 indicates n-butane, while c042 indicates i-butane. Table A.1 Functional Groups [Madronich and Calvert, 1989]. 0 = alkyl radicals 1 = alkoxy radicals 2 = alkyl peroxy radicals 3 = acyl peroxy radicals 4 = criegee biradicals 5-9 = misc. a = acids b = bromine c = pure hydrocarbon d = aldehydes e = ethers, esters f = flourine g = peroxy acids h = hydroperoxides k = ketones l = chlorine m = amine n = organic nitrates o = alcohol p = peroxy acyl nitrates q = misc inorganic s = sulfur t = alpha-pinene and its derivatives u = double bond (unsaturated) v = nitro (-NO2) w = nitrite (-NO) z = non-specific hydrocarbons (C5H12) 111 112 The code names used in the NCAR Master Mechanism are listed in Tables A.2–A.45 . Also listed in these tables are the number of atoms of carbon (C), halogens (X), hydrogen (H), nitrogen (N), oxygen (O), and sulfur (S), the full chemical formula, and the functional groups. These tables contain the contents from the file alphadict.dat [Madronich and Calvert, 1989]. 113 Table A.2 Chemical Codes: 0031–1081 [Madronich and Calvert, 1989]. Code (M) 0031 0032 0b11 0d21 0d22 0f14 0f15 0f16 0f24 0f25 0f26 0f27 0f28 0f29 0l11 0l12 0l21 0l23 0m11 0m21 0m22 0o11 0o21 0u22 1021 1031 1032 1041 1042 1043 1044 1051 1052 1053 1054 1055 1056 1057 1061 1062 1063 1071 1081 C 0 3 3 1 2 2 1 1 1 2 2 2 2 2 2 1 1 2 2 1 2 2 1 2 2 2 3 3 4 4 4 4 5 5 5 5 5 5 5 6 6 6 7 8 X 0 0 0 1 0 0 3 3 2 4 3 5 5 4 3 1 2 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 0 7 7 2 3 1 0 0 1 1 2 0 0 1 2 2 1 2 2 4 6 6 3 5 3 5 7 7 9 9 9 9 11 11 11 11 11 11 11 13 13 13 15 17 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula (M) - troe CH3CH.CH3 CH3CH2CH2. CH2.(Br) CH3CO. CHOCO. C.(F)(Cl2) C.(F2)(Cl) CH.(Cl)(F) C(F3)CH.(F) C(F2)(Cl)CH2. C(F3)C.(Cl2) C(F3)C.(Cl)(F) C(Cl)(F2)CH.(Cl) C(Cl2)(F)CH2. CH2.(Cl) CH.(Cl2) CdH(Cl)=CdH. C(Cl3)CH2. CH3(NH.) CH2NH.CH3 CH3NCH3 CH2.(OH) CH2(OH)CH2. CdH(OH)=CdH. CH3CH2(O.) CH3CH2CH2(O.) CH3CH(O.)CH3 CH3CH(CH3)CH2(O.) CH3CH2CH2CH2(O.) CH3CH2CH(O.)CH3 CH3C(O.)(CH3)CH3 C5H11(O.) CH3CH(CH3)CH(O.)CH3 CH3CH2CH2CH2CH2(O.) CH3CH2CH2CH(O.)CH3 CH3CH2CH(O.)CH2CH3 CH3CH2CH(CH3)CH2(O.) CH3CH2C(O.)(CH3)CH3 C6H13(O.) CH3CH(CH3)C(O.)(CH3)CH3 CH3CH(CH3)CH(CH3)CH2(O.) C7H15(O.) C8H17(O.) Functional Groups | | 0. | 0. | 0.b | 0.d | 0.dd | 0.fl | 0.fl | 0.fl | 0.fl | 0.fl | 0.fl | 0.fl | 0.fl | 0.fl | 0.l | 0.l | 0.l | 0.l | 0.m | 0.m | 0.m | 0.o | 0.o | 0.ou | 1. | 1. | 1. | 1. | 1. | 1. | 1. | 1.z | 1. | 1. | 1. | 1. | 1. | 1. | 1.z | 1. | 1. | 1.z | 1.z 114 Table A.3 Chemical Codes: 1a21–1e71. Code 1a21 1a31 1a32 1a33 1a41 1a42 1a43 1a44 1a50 1a51 1a52 1d21 1d31 1d32 1d33 1d34 1d35 1d36 1d41 1d42 1d43 1d44 1d45 1d46 1d47 1d48 1d49 1d51 1d52 1d53 1d54 1d55 1d56 1d57 1d58 1d59 1d5A 1d5B 1d61 1d62 1d81 1d82 1dA2 1e71 C 2 3 3 3 4 4 4 4 5 5 5 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 6 6 8 8 10 7 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 5 3 3 7 7 5 7 7 7 7 3 5 5 3 3 5 2 4 4 7 5 5 5 7 7 7 6 7 6 7 7 7 7 9 9 9 7 11 11 13 13 15 11 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 3 4 4 3 4 4 4 5 5 6 2 2 3 3 3 2 5 6 6 3 4 4 3 2 3 2 6 4 6 5 4 4 3 2 2 2 3 2 3 3 2 3 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CO(OH)CH2(O.) CO(OH)CH(O.)CH3 CO(OH)COCH2(O.) CO(OH)CH(O.)CHO CH3CH2CH(O.)CO(OH) CO(OH)CH(OH)CH2CH2(O.) CO(OH)COCH(O.)CH3 CH2(OH)C(O.)(CO(OH))CH3 CH3COCH(OH)CH(O.)CO(OH) CO(OH)CH(OH)CH(O.)COCH3 CO(OH)CH(OH)CH(OH)COCH2(O.) CHOCH2(O.) CH3CH(O.)CHO CH2(OH)CH(O.)CHO CHOCH(O.)CHO CHOCOCH2(O.) CHOCH2CH2(O.) CO(NO2)CH(O.)CHO CHOCH(OH)CH(O.)CO(NO2) CO(NO2)CH(OH)CH(O.)CHO CH2(OH)C(O.)(CH3)CHO CHOCH(OH)CH(O.)CHO CHOCH(OH)COCH2(O.) CH3COCH(O.)CHO CHOCH2CH(O.)CH3 CH2(OH)CH(O.)CH2CHO CHOCH(CH3)CH2(O.) CHOCH(OH)C(NO2)(O.)COCH3 CHOCH(OH)CH(O.)COCH3 CH3COC(OH)(NO2)CH(O.)CHO CHOCH(OH)CH(OH)COCH2(O.) CHOCH(OH)C(O.)(CH3)CHO CH3COCH(OH)CH(O.)CHO CH3COCH(O.)CH2CHO CH3CH2CH(O.)CH2CHO CHOCH2C(O.)(CH3)CH3 CHOCH(CH3)CH(O.)CH3 CHOCH2C(O.)(CH3)CHO CHOCH(CH3)C(O.)(CH3)CH3 CHOCH(CH3)C(O.)(CH3)CH2(OH) CHOCH2CH(COCH3)C(O.)(CH3)CH3 O’CH’CH2’CHCH2CHO’CCH3CH3 CH2(O.)CO’CH’CH2’CHCH2CHO’CCH3CH3 CH3COCOCH2OC(O.)(CH3)CH3 Functional Groups | 1.a | 1.a | 1.ka | a1.d | 1.a | 1.oa | 1.ka | o1.a | ko1.a | ao1.k | aook1. | 1.d | 1.d | o1.d | d1.d | dk1. | d1. | dk1.v | k1.odv | ko1.dv | o1.d | ddo1. | 1.kod | k1.d | 1.d | o1.d | d1. | do1.kv | k1.od | d1.okv | 1.kood | 1.ddo | ko1.d | k1.d | 1.d | d1. | d1. | d1.d | d1. | d1.o | kd 1. | 1.td | 1.ktd | kke1. 115 Table A.4 Chemical Codes: 1f14–1m33. Code 1f14 1f15 1g21 1g40 1h51 1h52 1h53 1h71 1k31 1k33 1k40 1k41 1k42 1k44 1k45 1k46 1k47 1k48 1k4B 1k4C 1k4D 1k51 1k54 1l11 1l13 1l21 1l22 1l31 1l41 1l42 1l43 1m11 1m12 1m13 1m21 1m22 1m23 1m24 1m25 1m33 C 1 1 2 4 5 5 5 7 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 1 1 2 2 3 4 4 4 1 1 1 2 2 2 2 2 3 X 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 H 0 0 3 7 10 10 11 13 5 5 7 5 7 7 7 7 7 7 7 7 7 9 11 2 0 4 4 6 8 8 8 4 4 4 6 6 6 6 6 8 N 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 O 1 1 4 5 7 7 5 5 3 2 3 3 2 3 2 3 2 3 3 4 4 4 5 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 2 1 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula C(F)(Cl2)(O.) C(F2)(Cl)(O.) CO(OOH)CH2(O.) CH2(OH)C(O.)(CH3)CO(OOH) CH2(ONO2)C(OOH)(CH3)CH(O.)CH2(OH) CH2(ONO2)CH(OOH)C(O.)(CH3)CH2(OH) CH2(OH)CH(OOH)C(O.)(CH3)CH2(OH) CH3C(OH)(CH3)C(O.)(CH2(OOH))COCH3 CH2(OH)COCH2(O.) CH3COCH2(O.) CH3COCH(OH)CH2(O.) CH3COCOCH2(O.) CH3CH2COCH2(O.) CH3COCH(O.)CH2(OH) CH3COCH(O.)CH3 CH2(OH)COCH2CH2(O.) CH3COCH2CH2(O.) CH2(OH)CH2COCH2(O.) CH3CH(OH)COCH2(O.) CH2(OH)COCH(OH)CH2(O.) CH2(OH)CH(OH)COCH2(O.) CH2(OH)COC(O.)(CH3)CH2(OH) CH2(OH)C(OOH)(CH3)CH(O.)CH2(OH) CH2(Cl)(O.) C(Cl3)(O.) CH2(Cl)CH2(O.) CH3CH(Cl)(O.) CH2(Cl)CH(O.)CH3 CH3CH(Cl)CH(O.)CH3 CH2(Cl)C(O.)(CH3)CH3 CH3CH(OH)CH(Cl)CH2(O.) CH2(OH)(NH(O.)) CH3(NH(O.)) CH2(O.)(NH2) CH3CH2(NH(O.)) CH3N(O.)CH3 CH3CH(O.)(NH2) CH3(NH)CH2(O.) CH2(OH)N(O.)CH3 CH3CH2(O.)NCH3 Functional Groups | 1.fl | 1.fl | 1.g | o1.g | nh1.o | o1.hn | o1.ho | kh1.o | 1.ko | k1. | ko1. | 1.kk | k1. | k1.o | 1.k | ok1. | k1. | ok1. | ok1. | oko1. | 1.koo | o1.ko | ok1.o | l1. | 1.l | l1. | l1. | l1. | 1.l | 1.l | 1.lo | mo1. | m1. | 1.m | m1. | m1. | 1.m | m1. | om1. | 1.m 116 Table A.5 Chemical Codes: 1n11–1o54. Code 1n11 1n21 1n22 1n23 1n31 1n32 1n33 1n34 1n41 1n42 1n43 1n44 1n45 1n46 1n47 1n48 1n49 1n51 1n52 1n53 1n54 1nA1 1o11 1o21 1o22 1o31 1o32 1o33 1o34 1o35 1o40 1o41 1o43 1o44 1o45 1o46 1o48 1o49 1o4A 1o4B 1o4C 1o4D 1o50 1o51 1o52 1o53 1o54 C 1 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 10 1 2 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 2 2 4 4 3 6 6 6 5 6 5 6 6 8 8 6 6 8 8 10 10 16 3 5 5 7 7 7 7 7 9 9 9 9 9 9 9 9 9 9 9 9 11 11 11 11 11 N 1 1 1 1 2 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 4 5 4 4 8 4 4 5 8 6 9 7 5 4 4 5 6 4 4 6 6 4 2 2 2 3 3 2 2 2 2 2 2 2 2 2 3 3 2 3 2 3 3 3 2 3 2 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(ONO2)(O.) CHOCH(ONO2)(O.) CH2(ONO2)CH2(O.) CH3CH(ONO2)(O.) CO(NO2)CH(OH)CH(ONO2)(O.) CH2(ONO2)CH(O.)CH3 CH3CH(ONO2)CH2(O.) CH2(OH)CH(ONO2)CH2(O.) CH3COC(NO2)(OH)CH(ONO2)(O.) CH3COCH(OH)CH(ONO2)(O.) CH(ONO2)(OH)C(NO2)(OH)COCH2(O.) CH(ONO2)(OH)CH(OH)COCH2(O.) CH2(ONO2)C(O.)(CH3)CHO CH2(ONO2)C(O.)(CH3)CH3 CH3CH(ONO2)CH(O.)CH3 CH3COCH(O.)CH2(ONO2) CH2(ONO2)CH(OH)COCH2(O.) CH2(ONO2)C(O.)(CH3)CdH=CdH2 CdH2=Cd(CH3)CH(O.)CH2(ONO2) CH2(OH)CH(O.)C(ONO2)(CH3)CH2(OH) CH2(OH)C(O.)(CH3)CH(ONO2)CH2(OH) C9H12CH3(O.),H(ONO2) CH2(OH)(O.) CH3CH(OH)(O.) CH2(OH)CH2(O.) CH2(OH)CH(OH)CH2(O.) CH2(OH)CH(O.)CH2(OH) CH2(OH)CH(O.)CH3 CH3CH(OH)CH2(O.) CH2(OH)CH2CH2(O.) CH3CH2CH(OH)CH2(O.) CH2(OH)C(O.)(CH3)CH3 CH2(OH)CH2CH2CH2(O.) CH3CH(OH)CH(O.)CH3 CH3C(OH)(CH3)CH2(O.) CH3CH(OH)CH2CH2(O.) CH2(OH)C(OH)(CH3)CH2(O.) CH3CH(OH)CH(OH)CH2(O.) CH2(OH)CH(CH3)CH2(O.) CH2(OH)CH(OH)CH2CH2(O.) CH2(OH)CH2CH(O.)CH3 CH2(OH)CH2CH(OH)CH2(O.) CH2(OH)CH2CH(OH)CH(O.)CH3 CH3CH2CH2CH(O.)CH(OH)(OH) CH2(OH)CH2CH2CH2CH2(O.) CH2(OH)CH(CH3)CH(O.)CH2(OH) CH2(OH)CH(CH3)CH(O.)CH3 Functional Groups | n1. | dn1. | n1. | n1. | konv1. | 1.n | n1. | on1. | kon1.v | kon1. | 1.konov | 1.kono | n1.d | 1.n | 1.n | k1.n | 1.kon | n1.u | u1.n | o1.no | o1.no | t1.n | o1. | 1.o | o1. | oo1. | o1.o | 1.o | o1. | o1. | o1. | 1.o | 1.o | o1. | o1. | o1. | 1.oo | 1.oo | o1. | 1.oo | 1.o | oo1. | 1.oo | 1.oo | o1. | oo1. | o1. 117 Table A.6 Chemical Codes: 1o56–1v34. Code 1o56 1o57 1o58 1o59 1o5A 1o5B 1o5C 1o61 1o62 1o63 1o64 1o65 1o71 1o81 1p21 1p30 1p31 1r61 1r62 1r63 1r64 1r71 1r72 1r73 1r74 1r75 1r76 1r77 1r81 1r82 1r83 1s21 1t81 1t91 1t92 1tA1 1u51 1u52 1u71 1v34 C 5 5 5 5 5 5 5 6 6 6 6 6 7 8 2 3 3 6 6 6 6 7 7 7 7 7 7 7 8 8 8 2 8 9 9 10 5 5 7 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 11 11 11 11 11 11 11 13 13 13 13 13 15 17 2 4 4 5 4 7 7 7 7 6 8 9 9 8 9 11 11 5 13 15 15 17 9 9 11 2 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 O 2 2 2 2 2 4 4 2 4 2 3 2 2 2 6 6 6 1 3 2 3 1 1 3 5 2 3 4 1 2 3 1 2 2 3 2 2 2 2 5 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)CH2CH2CH(O.)CH3 CH3CH(OH)CH2CH2CH2(O.) CH3CH2CH(OH)CH2CH2(O.) CH2(OH)CH(CH3)CH2CH2(O.) CH3CH(OH)CH(CH3)CH2(O.) CH2(OH)C(OH)(CH3)CH(OH)CH2(O.) CH2(OH)C(OH)(CH3)CH(O.)CH2(OH) C6H12(O.)(OH) CH2(OH)CH(CH2(OH))CH(CH2(OH))CH2(O.) CH2(OH)CH(CH3)CH(CH3)CH2(O.) CH2(OH)CH(CH3)CH(CH2(OH))CH2(O.) CH3C(OH)(CH3)CH(CH3)CH2(O.) C7H14(OH)(O.) C8H16(OH)(O.) CO(OONO2)CH2(O.) CH2(O.)CH2CO(OONO2) CH3CH(O.)CO(OONO2) C6H5(O.) C6H4(O.),NO2 C6H4(H)(OH),(H)(O.) C6H4(OH)(OH),H(O.) C6H5CH2(O.) C6H4CH3,(O.) C6H3CH3,(O.),NO2 C6H3CH3,(OH)(OH),(O.)(NO2) C6H3CH3,H(OH),H(O.) C6H3CH3,OH(OH),H(O.) C6H3(O.),H(OH),CH3,NO2 C6H3CH3,(O.),CH3 C6H3CH3,H(OH),(CH3)(O.) C6H3CH3,OH(OH),(CH3)(O.) CH3SCH2(O.) CH3CO’CH’CH2’CH(O.)’CCH3CH3 CH3CO’CH’CH2’CH(CH2(O.))’CCH3CH3 CH3CO’CH’CH2’CH(CH2(OH))’CCH3CH2(O.) C9H12CH3,(O.),HOH CdH2=Cd(CH3)CH(O.)CH2(OH) CH2(OH)C(O.)(CH3)CdH=CdH2 CH3COCd(CH2(O.))=Cd(CH3)CH3 CO(NO2)COCH2(O.) Functional Groups | 1.o | 1.o | o1. | o1. | 1.o | ooo1. | oo1.o | o1.z | 1.ooo | 1.o | o1.o | 1.o | o1.z | o1.z | 1.p | 1.p | 1.p | r1. | r1.v | 1.or | r1.oo | r1. | r1. | r1.v | roo1.v | ro1. | roo1. | r1.ov | r1. | ro1. | roo1. | 1.s | kt1. | kt1. | kto1. | to1. | u1.o | o1.u | k1.u | vkk1. 118 Table A.7 Chemical Codes: 2011–2d49. Code 2011 2021 2031 2032 2041 2042 2043 2044 2051 2052 2053 2054 2055 2056 2057 2061 2062 2063 2071 2081 2a21 2a31 2a32 2a41 2a42 2a43 2a47 2a50 2a51 2a53 2d21 2d31 2d32 2d33 2d34 2d41 2d42 2d43 2d44 2d45 2d47 2d48 2d49 C 1 2 3 3 4 4 4 4 5 5 5 5 5 5 5 6 6 6 7 8 2 3 3 4 4 4 4 5 5 5 2 3 3 3 3 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 5 7 7 9 9 9 9 11 11 11 11 11 11 11 13 13 13 15 17 3 5 3 7 5 7 7 7 7 7 3 5 5 3 5 4 4 5 7 5 7 7 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 O 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 4 4 5 4 5 5 5 6 6 7 3 4 3 4 3 7 7 5 4 5 3 4 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3(OO.) CH3CH2(OO.) CH3CH(OO.)CH3 CH3CH2CH2(OO.) CH3CH2CH(OO.)CH3 CH3CH2CH2CH2(OO.) CH3C(OO.)(CH3)CH3 CH3CH(CH3)CH2(OO.) C5H11(OO.) CH3CH(CH3)CH(OO.)CH3 CH3CH2CH2CH2CH2(OO.) CH3CH2CH2CH(OO.)CH3 CH3CH2CH(OO.)CH2CH3 CH3CH2CH(CH3)CH2(OO.) CH3CH2C(OO.)(CH3)CH3 C6H13(OO.) CH3CH(CH3)C(OO.)(CH3)CH3 CH3CH(CH3)CH(CH3)CH2(OO.) C7H15(OO.) C8H17(OO.) CO(OH)CH2(OO.) CH3CH(OO.)CO(OH) CO(OH)COCH2(OO.) CH3CH2CH(OO.)CO(OH) CO(OH)COCH(OO.)CH3 CH2(OH)C(OO.)(CH3)CO(OH) CO(OH)CH(OH)CH2CH2(OO.) CO(OH)CH(OH)CH(OO.)COCH3 CH3COCH(OH)CH(OO.)CO(OH) CO(OH)CH(OH)CH(OH)COCH2(OO.) CHOCH2(OO.) CH2(OH)CH(OO.)CHO CH3CH(OO.)CHO CHOCOCH2(OO.) CHOCH2CH2(OO.) CHOCH(OH)CH(OO.)CO(NO2) CO(NO2)CH(OH)CH(OO.)CHO CHOCH(OH)CH(OO.)CHO CH2(OH)C(OO.)(CH3)CHO CHOCH(OH)COCH2(OO.) CHOCH2CH(OO.)CH3 CHOCH2CH(OO.)CH2(OH) CHOCH(CH3)CH2(OO.) Functional Groups | 2. | 2. | 2. | 2. | 2. | 2. | 2. | 2. | 2.z | 2. | 2. | 2. | 2. | 2. | 2. | 2.z | 2. | 2. | 2.z | 2.z | 2.a | 2.a | 2.ka | 2.a | 2.ak | o2.a | 2.oa | ao2.k | koa2. | aook2. | d2. | o2.d | 2.d | dk2. | d2. | k2.odv | ko2.dv | do2.d | o2.d | 2.dok | 2.d | 2.do | d2. 119 Table A.8 Chemical Codes: 2d50–2k71. Code 2d50 2d51 2d52 2d53 2d54 2d55 2d56 2d57 2d58 2d59 2d5A 2d61 2d62 2d81 2d82 2dA2 2e72 2f13 2f14 2f15 2g21 2g40 2h51 2h52 2h53 2h54 2h71 2k33 2k34 2k40 2k42 2k43 2k44 2k45 2k46 2k47 2k48 2k49 2k4B 2k4C 2k51 2k71 C 5 5 5 5 5 5 5 5 5 5 5 6 6 8 8 10 7 1 1 1 2 4 5 5 5 5 7 3 3 4 4 4 4 4 4 4 4 4 4 4 5 7 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 9 6 7 6 7 7 7 7 9 9 7 11 11 13 13 15 11 0 0 0 3 7 11 11 10 10 13 5 5 7 7 5 7 7 7 7 7 7 7 7 9 13 N 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 7 5 7 6 5 5 4 3 3 4 3 4 3 4 4 5 2 2 2 5 6 6 6 8 8 6 3 4 4 4 4 3 3 5 3 4 4 4 5 5 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CHOCH(CH3)CH(OO.)CH3 CH3COC(OO.)(NO2)CH(OH)CHO CH3COCH(OO.)CH(OH)CHO CH3COC(OH)(NO2)CH(OO.)CHO CHOCH(OH)CH(OH)COCH2(OO.) CH3COCH(OH)CH(OO.)CHO CHOCH(OH)C(OO.)(CH3)CHO CH3COCH(OO.)CH2CHO CH3CH2CH(OO.)CH2CHO CHOCH2C(OO.)(CH3)CH3 CHOCH2C(OO.)(CH3)CHO CHOCH(CH3)C(OO.)(CH3)CH3 CHOCH(CH3)C(OO.)(CH3)CH2(OH) ’CH(OO.)’CH2’CH(CH2CHO)’C(CH3)CH3 CHOCH2CH(COCH3)C(OO.)(CH3)CH3 CH2(OO.)CO’CH’CH2’CHCH2CHO’CCH3CH3 CH3COCOCH2OC(OO.)(CH3)CH3 C(F3)(OO.) C(F)(Cl2)(OO.) C(F2)(Cl)(OO.) CO(OOH)CH2(OO.) CH2(OH)C(OO.)(CH3)CO(OOH) CH2(OH)C(OOH)(CH3)CH(OO.)CH2(OH) CH2(OH)CH(OOH)C(OO.)(CH3)CH2(OH) CH2(ONO2)C(OOH)(CH3)CH(OO.)CH2(OH) CH2(ONO2)CH(OOH)C(OO.)(CH3)CH2(OH) CH3C(OH)(CH3)C(OO.)(CH2(OOH))COCH3 CH3COCH2(OO.) CH2(OH)COCH2(OO.) CH3COCH(OH)CH2(OO.) CH3COCH(OO.)CH2(OH) CH3COCOCH2(OO.) CH3COCH(OO.)CH3 CH3CH2COCH2(OO.) CH2(OH)CH(OH)COCH2(OO.) CH3COCH2CH2(OO.) CH2(OH)COCH2CH2(OO.) CH2(OH)CH2COCH2(OO.) CH3CH(OH)COCH2(OO.) CH2(OH)COCH(OH)CH2(OO.) CH2(OH)COC(OO.)(CH3)CH2(OH) CH3C(OH)(CH3)CH(CH2(OO.))COCH3 Functional Groups | d2. | do2.kv | k2.od | d2.okv | 2.kood | ko2.d | do2.d | k2.d | 2.d | d2. | d2.d | d2. | d2.o | 2.td | kd 2. | 2.kd | kke 2. | 2.f | 2.fl | 2.fl | 2.g | 2.og | h2.oo | o2.ho | nh2.o | o2.hn | kh2. o | k2. | 2.ko | ko2. | k2.o | kk 2. | k2. | k2. | 2.koo | k2. | ok2. | ok2. | ok2. | oko2. | ook2. | o2.k 120 Table A.9 Chemical Codes: 2l11–2nA1. Code 2l11 2l13 2l21 2l22 2l31 2l41 2l42 2l43 2m01 2m11 2m12 2m21 2m22 2m23 2m33 2n11 2n21 2n22 2n23 2n31 2n32 2n33 2n34 2n41 2n42 2n43 2n44 2n45 2n46 2n47 2n48 2n49 2n51 2n52 2n53 2n54 2nA1 C 1 1 2 2 3 4 4 4 0 1 1 2 2 2 3 1 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 10 X 1 3 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 2 0 4 4 6 8 8 8 2 4 4 6 6 6 8 2 2 4 4 3 6 6 6 5 6 5 6 8 8 6 6 6 8 8 10 10 16 N 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 O 2 2 2 2 2 2 2 3 2 2 3 2 2 3 2 5 6 5 5 9 5 5 6 9 7 10 8 5 5 6 6 7 5 5 7 7 5 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(Cl)(OO.) C(Cl3)(OO.) CH2(Cl)CH2(OO.) CH3CH(Cl)(OO.) CH3CH(OO.)CH2(Cl) CH3CH(Cl)CH(OO.)CH3 CH3C(OO.)(CH3)CH2(Cl) CH3CH(OH)CH(Cl)CH2(OO.) NH2(OO.) CH2(OO.)(NH2) CH2(OH)(NH(OO.)) CH3CH(OO.)(NH2) CH3CH2(OO.)NH CH2(OH)N(OO.)CH3 CH3CH3CH2(OO.)N CH2(ONO2)(OO.) CHOCH(ONO2)(OO.) CH2(ONO2)CH2(OO.) CH3CH(ONO2)(OO.) CO(NO2)CH(OH)CH(ONO2)(OO.) CH3CH(OO.)CH2(ONO2) CH3CH(ONO2)CH2(OO.) CH2(OH)CH(ONO2)CH2(OO.) CH3COC(NO2)(OH)CH(ONO2)(OO.) CH3COCH(OH)CH(ONO2)(OO.) CH(ONO2)(OH)C(NO2)(OH)COCH2(OO.) CH(ONO2)(OH)CH(OH)COCH2(OO.) CH3CH(ONO2)CH(OO.)CH3 CH3C(OO.)(CH3)CH2(ONO2) CH2(ONO2)C(OO.)(CH3)CHO CH3COCH(OO.)CH2(ONO2) CH2(ONO2)CH(OH)COCH2(OO.) CdH2=CdHC(OO.)(CH3)CH2(ONO2) CdH2=Cd(CH3)CH(OO.)CH2(ONO2) CH2(OH)CH(OO.)C(ONO2)(CH3)CH2(OH) CH2(OH)C(OO.)(CH3)CH(ONO2)CH2(OH) C9H12CH3(OO.),H(ONO2) Functional Groups | 2.l | 2.l | 2.l | 2.l | 2.l | 2.l | 2.l | 2.ol | m2. | 2.m | om2. | o2.m | 2. m | om2. | 2.m | n2. | dn2. | 2.n | n2. | kon2.v | 2.n | 2.n | o2.n | kon2.v | kon2. | 2.konov | 2.kono | 2.n | 2.n | n2.d | k2.n | 2.kon | n2.u | u2.n | o2.no | o2.no | t2.n 121 Table A.10 Chemical Codes: 2o11–2p31. Code 2o11 2o21 2o31 2o32 2o33 2o34 2o35 2o40 2o42 2o43 2o44 2o45 2o46 2o48 2o49 2o4A 2o4B 2o4C 2o4D 2o50 2o51 2o52 2o53 2o54 2o55 2o56 2o57 2o58 2o59 2o5A 2o5B 2o61 2o62 2o63 2o64 2o65 2o71 2o81 2p21 2p30 2p31 C 1 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 7 8 2 3 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 5 7 7 7 7 7 9 9 9 9 9 9 9 9 9 9 9 9 11 11 11 11 11 11 11 11 11 11 11 11 13 13 13 13 13 15 17 2 4 4 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 O 3 3 4 3 3 3 4 3 3 3 3 3 3 4 4 3 4 3 4 4 3 3 4 4 3 3 3 3 3 5 5 3 3 4 5 3 3 3 7 7 7 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)(OO.) CH2(OH)CH2(OO.) CH2(OH)CH(OO.)CH2(OH) CH3CH(OO.)CH2(OH) CH3CH(OH)CH2(OO.) CH2(OH)CH2CH2(OO.) CH2(OH)CH(OH)CH2(OO.) CH3CH2CH(OH)CH2(OO.) CH2(OH)CH2CH2CH2(OO.) CH3CH(OH)CH(OO.)CH3 CH3C(OO.)(CH3)CH2(OH) CH3C(OH)(CH3)CH2(OO.) CH3CH(OH)CH2CH2(OO.) CH2(OH)C(OH)(CH3)CH2(OO.) CH3CH(OH)CH(OH)CH2(OO.) CH2(OH)CH(CH3)CH2(OO.) CH2(OH)CH(OH)CH2CH2(OO.) CH2(OH)CH2CH(OO.)CH3 CH2(OH)CH2CH(OH)CH2(OO.) CH2(OH)CH2CH(OH)CH(OO.)CH3 C5H10(OH)(OO.) CH2(OH)CH(CH3)CH(OO.)CH3 CH2(OH)CH(CH3)CH(OO.)CH2(OH) CH3CH2CH2CH(OO.)CH(OH)(OH) CH3CH(OH)CH(CH3)CH2(OO.) CH2(OH)CH2CH2CH(OO.)CH3 CH3CH(OH)CH2CH2CH2(OO.) CH3CH2CH(OH)CH2CH2(OO.) CH2(OH)CH(CH3)CH2CH2(OO.) CH2(OH)C(OH)(CH3)CH(OO.)CH2(OH) CH2(OH)C(OH)(CH3)CH(OH)CH2(OO.) C6H12(OH)(OO.) CH2(OH)CH(CH3)CH(CH3)CH2(OO.) CH2(OH)CH(CH3)CH(CH2(OH))CH2(OO.) CH2(OH)CH(CH2(OH))CH(CH2(OH))CH2(OO.) CH3C(OH)(CH3)CH(CH3)CH2(OO.) C7H14(OH)(OO.) C8H16(OH)(OO.) CO(OONO2)CH2(OO.) CH2(OO.)CH2CO(OONO2) CH3CH(OO.)CO(OONO2) Functional Groups | o2. | o2. | o2.o | 2.o | o2. | o2. | 2.oo | o2. | 2.o | o2. | 2.o | 2.o | o2. | 2.oo | 2.oo | o2. | 2.oo | 2.o | oo2. | 2.oo | o2.z | o2. | o2.o | 2.oo | 2.o | 2.o | 2.o | 2.o | o2. | oo2.o | ooo2. | o2.z | 2.o | o2.o | o2.oo | 2.o | o2.z | o2.z | 2.p | 2.p | 2.p 122 Table A.11 Chemical Codes: 2r61–3d48. Code 2r61 2r62 2r63 2r71 2r72 2r73 2r74 2r75 2r81 2r82 2s21 2t71 2t81 2t91 2t92 2tA1 2u51 2u52 2u71 2v31 3021 3031 3041 3042 3051 3052 3053 3061 3a21 3a31 3a32 3a33 3d21 3d31 3d32 3d33 3d41 3d42 3d43 3d44 3d45 3d46 3d47 3d48 C 6 6 6 7 7 7 7 7 8 8 2 7 8 9 9 10 5 5 7 3 2 3 4 4 5 5 5 6 2 3 3 3 2 3 3 3 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 7 7 5 8 7 9 9 8 11 11 5 11 13 15 15 17 9 9 11 2 3 5 7 7 9 9 9 11 1 3 3 3 1 2 3 3 2 4 3 3 5 3 3 5 N 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 O 3 4 2 6 2 3 4 5 3 4 2 4 3 3 4 3 3 3 3 6 3 3 3 3 3 3 3 3 5 6 5 7 4 7 5 4 8 8 6 6 6 5 5 4 S 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula C6H5(H)OH/(OO.) C6H5(OH)OH/(OO.) C6H5(OO.) C6H3CH3,(OH)(OH),NO2/(OO.) C6H5CH2(OO.) C6H4CH3,HOH/(OO.) C6H4CH3,OHOH/(OO.) C6H3HOH,CH3,NO2,(OO.) C6H3CH3,HOH,CH3/(OO.) C6H3CH3,(OH)OH,CH3/(OO.) CH3SCH2(OO.) CH3CO’C(OO.)’CH2’O’C(CH3)CH3 CH3CO’CH’CH2’CH(OO.)’C(CH3)CH3 CH3CO’CH’CH2’CH(CH2OO.)’CCH3CH3 CH3CO’CH’CH2’CH(CH2(OH))’CCH3CH2OO. C9H12CH3(OO.),H(OH) CdH2=CdHC(OO.)(CH3)CH2(OH) CdH2=Cd(CH3)CH(OO.)CH2(OH) CH3COCd(CH2(OO.))=Cd(CH3)CH3 CO(NO2)COCH2(OO.) CH3CO(OO.) CH3CH2CO(OO.) CH3CH2CH2CO(OO.) CH3CH(CH3)CO(OO.) CH3CH2CH2CH2CO(OO.) CH3CH2CH(CH3)CO(OO.) CH3CH(CH3)CH2CO(OO.) CH3CH(CH3)CH(CH3)CO(OO.) CO(OH)CO(OO.) CO(OH)CH(OH)CO(OO.) CO(OH)CH2CO(OO.) CO(OH)C(OH)(OH)CO(OO.) CHOCO(OO.) CHOC(NO2)(OH)CO(OO.) CHOCH(OH)CO(OO.) CHOCH2CO(OO.) CHOCOC(NO2)(OH)CO(OO.) CHOCH(OH)C(NO2)(OH)CO(OO.) CHOCH(OH)COCO(OO.) CHOCOCH(OH)CO(OO.) CHOCH(OH)CH(OH)CO(OO.) CHOCOCH2CO(OO.) CHOCH2COCO(OO.) CHOCH(CH3)CO(OO.) Functional Groups | ro2. | roo2. | r2. | roo2. | r2. | r2.o | r2.oo | rov2. | r2.o | r2.oo | 2.s | 2.kt | kt2. | kt2. | kto2. | to2. | o2.u | u2.o | k2.u | kk2.v | 3. | 3. | 3. | 3. | 3. | 3. | 3. | 3. | 3.a | 3.ao | 3.ao | 3.aoo | d3. | do3.v | do3. | d3. | dko3.v | doo3.v | dok3. | 3.okd | doo3. | dk3. | dk3. | d3. 123 Table A.12 Chemical Codes: 3d51–3n49. Code 3d51 3d52 3d53 3d54 3d55 3d56 3g40 3h21 3h40 3k31 3k33 3k40 3k45 3k46 3k47 3k48 3k49 3k4A 3k50 3k51 3k52 3k53 3k55 3k57 3k58 3k59 3k5A 3k5B 3k5C 3k81 3l11 3n21 3n31 3n32 3n33 3n34 3n41 3n42 3n43 3n44 3n45 3n46 3n47 3n48 3n49 C 5 5 5 5 5 5 4 2 4 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 8 1 2 3 3 3 3 4 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 3 5 5 7 7 5 3 7 3 3 5 5 5 5 5 5 5 7 5 5 5 5 7 7 5 7 7 7 13 0 2 1 2 2 4 3 3 4 3 4 4 6 6 6 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 1 1 2 2 1 2 1 1 1 1 1 O 7 7 7 7 4 4 8 5 6 5 4 5 5 6 5 5 4 6 5 6 7 7 6 6 7 5 4 5 4 5 3 6 9 7 7 6 10 9 7 10 8 8 6 7 7 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CHOCOCH(OH)COCO(OO.) CHOCOCOCH(OH)CO(OO.) CHOCOCH(OH)CH(OH)CO(OO.) CHOCH(OH)CH(OH)COCO(OO.) CHOCH(CH3)CH2CO(OO.) CHOCH2CH(CH3)CO(OO.) CO(OOH)C(OOH)(CH3)CO(OO.) CH2(OOH)CO(OO.) CH2(OH)C(OOH)(CH3)CO(OO.) CH2(OH)COCO(OO.) CH3COCO(OO.) CH3CH(OH)COCO(OO.) CH3COCH(OH)CO(OO.) CH2(OH)COCH(OH)CO(OO.) CH2(OH)COCH2CO(OO.) CH2(OH)CH2COCO(OO.) CH3COCH2CO(OO.) CH2(OH)CH(OH)COCO(OO.) CH3COCH(OH)CH2CO(OO.) CH3COCOCH(OH)CO(OO.) CH2(OH)COCOCH(OH)CO(OO.) CH2(OH)COCH(OH)COCO(OO.) CH3COCH(OH)COCO(OO.) CH3COCH(OH)CH(OH)CO(OO.) CH2(OH)COCH(OH)CH(OH)CO(OO.) CH3COCOCH2CO(OO.) CH3COCH2CH2CO(OO.) CH3CH(OH)COCH2CO(OO.) CH3COCH(CH3)CO(OO.) CH3COCH(C(OH)(CH3)CH3)CH2CO(OO.) CO(Cl)(OO.) CH2(ONO2)CO(OO.) CO(NO2)CH(ONO2)CO(OO.) CH2(ONO2)COCO(OO.) CHOCH(ONO2)CO(OO.) CH3CH(ONO2)CO(OO.) CO(NO2)CH(ONO2)CH(OH)CO(OO.) CH3COC(NO2)(ONO2)CO(OO.) CH3COCH(ONO2)CO(OO.) CO(NO2)CH(OH)CH(ONO2)CO(OO.) CH2(ONO2)COCH(OH)CO(OO.) CHOCH(ONO2)CH(OH)CO(OO.) CH3CH(ONO2)CH2CO(OO.) CH2(OH)CH(ONO2)CH2CO(OO.) CH2(OH)C(ONO2)(CH3)CO(OO.) Functional Groups | dkok3. | dkko3. | dkoo3. | dook3. | d3. | d3. | gh3. | h3. | oh3. | ok3. | k3. | ok3. | ko3. | ok3. | ok3. | ok3. | k3. | ook3. | ko3. | kko3. | okko3. | okok3. | kok3. | koo3. | okoo3. | kk 3. | k3. | ok3. | k3. | k3.o | 3.l | n3. | kn3.v | nk3. | dn3. | n3. | kno3.v | kn3.v | kn3. | kon3.v | nko3. | dno3. | 3.n | o3.n | on3. 124 Table A.13 Chemical Codes: 3n51–3u53. Code 3n51 3n52 3n53 3n54 3n55 3o22 3o23 3o31 3o32 3o33 3o34 3o35 3o41 3o42 3o43 3o44 3o45 3o46 3o47 3o51 3o52 3o53 3o54 3o55 3o56 3o57 3o61 3r71 3t91 3tA1 3u31 3u32 3u41 3u42 3u43 3u44 3u51 3u52 3u53 C 5 5 5 5 5 2 2 3 3 3 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 6 7 9 10 3 3 4 4 4 4 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 5 6 5 6 6 3 3 5 5 5 5 5 7 7 7 7 7 7 7 9 9 9 9 9 9 9 11 5 13 15 2 3 2 3 5 2 4 5 5 N 2 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0 0 O 10 8 10 8 9 5 4 4 5 5 6 4 4 4 4 5 4 5 4 4 4 4 4 5 4 6 4 3 4 4 7 5 6 4 3 6 6 4 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3COC(NO2)(ONO2)CH(OH)CO(OO.) CH3COCH(ONO2)CH(OH)CO(OO.) CH3COC(NO2)(OH)CH(ONO2)CO(OO.) CH3COCH(OH)CH(ONO2)CO(OO.) CH2(ONO2)COCH(OH)CH(OH)CO(OO.) CH(OH)(OH)CO(OO.) CH2(OH)CO(OO.) CH3CH(OH)CO(OO.) CH2(OH)CH(OH)CO(OO.) CH3C(OH)(OH)CO(OO.) CH2(OH)C(OH)(OH)CO(OO.) CH2(OH)CH2CO(OO.) CH3C(OH)(CH3)CO(OO.) CH2(OH)CH2CH2CO(OO.) CH3CH(OH)CH2CO(OO.) CH2(OH)CH(OH)CH2CO(OO.) CH3CH2CH(OH)CO(OO.) CH2(OH)CH2CH(OH)CO(OO.) CH2(OH)CH(CH3)CO(OO.) CH3CH(OH)CH2CH2CO(OO.) CH3CH2CH(OH)CH2CO(OO.) CH2(OH)CH(CH3)CH2CO(OO.) CH2(OH)CH2CH(CH3)CO(OO.) CH3CH(OH)CH(OH)CH2CO(OO.) CH3CH(OH)CH(CH3)CO(OO.) CH2(OH)C(OH)(CH3)CH(OH)CO(OO.) CH2(OH)CH(CH3)CH(CH3)CO(OO.) C6H5CO(OO.) apR2C8H13OCO(OO.) apR1C9H15OCO(OO.) Cd(OH)(NO2)=Cd(OH)CO(OO.) CdH(OH)=Cd(OH)CO(OO.) CO(NO2)CdH=Cd(OO.)CHO CHOCdH=CdHCO(OO.) CdH2=Cd(CH3)CO(OO.) CHOCdH=Cd(NO2)CO(OO.) CH3COCd(NO2)=CdHCO(OO.) CH3COCdH=CdHCO(OO.) CHOCdH=Cd(CH3)CO(OO.) Functional Groups | kno3.v | kno3. | kon3.v | kon3. | nkoo3. | oo3. | o3. | o3. | oo3. | oo3. | ooo3. | o3. | o3. | o3. | o3. | oo3. | o3. | oo3. | o3. | o3. | o3. | o3. | o3. | oo3. | o3. | ooo3. | o3. | r3. | k 3.t | k 3.t | ouo3.v | ouo3. | ku3.v | du3. | 3.u | duv3. | ku3.v | ku 3. | du 3. 125 Table A.14 Chemical Codes: 3v21–7dA1. Code 3v21 3v22 3v32 3v41 3v42 3v43 3v44 3v54 3v56 4011 4021 4031 4041 4a31 4d21 4d22 4d31 4dA1 4k32 4o12 4o21 4o22 4o23 4o31 4s10 4tA2 4u41 4u42 4v11 4v21 4v31 6r61 6r71 6r72 6r73 6r74 6r81 6r82 7011 7021 7031 7041 7a31 7d21 7d22 7d31 7dA1 C 2 2 3 4 4 4 4 5 5 1 2 3 4 3 2 2 3 10 3 1 2 2 2 3 1 10 4 4 1 2 3 6 7 7 7 7 8 8 1 2 3 4 3 2 2 3 10 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 2 0 2 2 2 4 4 4 6 2 4 6 8 4 2 2 4 16 4 2 4 4 4 6 3 16 6 6 1 1 3 7 8 9 9 8 11 11 2 4 6 8 4 2 2 4 16 N 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 O 7 6 7 8 8 7 8 8 8 2 2 2 2 4 4 3 3 3 3 3 4 3 3 3 2 3 2 2 5 5 5 2 4 1 2 3 1 2 2 2 2 2 4 4 3 3 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula C(OH)(OH)(NO2)CO(OO.) CO(NO2)CO(OO.) CO(NO2)CH(OH)CO(OO.) CO(NO2)COCH(OH)CO(OO.) CO(NO2)CH(OH)COCO(OO.) CH3COC(NO2)(OH)CO(OO.) CO(NO2)CH(OH)CH(OH)CO(OO.) CH3COC(NO2)(OH)COCO(OO.) CH3COC(NO2)(OH)CH(OH)CO(OO.) CH2.(OO.) CH3CH.(OO.) CH3C.(OO.)CH3 CH3CH2CH2CH.(OO.) CH3C.(OO.)CO(OH) CHOC.(OH)(OO.) CHOCH.(OO.) CH3C.(OO.)CHO CH3COO’CH’CH2’CHCH2CHO’CCH3CH3 CH3COCH.(OO.) CH.(OH)(OO.) CH2(OH)C.(OH)(OO.) CH2(OH)CH.(OO.) CH3C.(OH)(OO.) CH3CH2C.(OH)(OO.) CH3S(OO.) CH3CO’CH’CH2’CHCH2CH.(OO.)’CCH3CH3 CdH2=CdHC.(OO.)CH3 CdH2=Cd(CH3)CH.(OO.) C.(NO2)(OH)(OO.) CO(NO2)CH.(OO.) CH3COC.(NO2)(OO.) C6H5(OH)(OH) C6H3CH3,(OH)(OH),NO2 C6H4CH3,HOH C6H4CH3,OHOH C6H3HOH,CH3,NO2 C6H3CH3,(H)OH,CH3 C6H3CH3,(OH)OH,CH3 [CH2OO]* [CH3CHOO]* [CH3C(CH3)OO]* [CH3CH2CH2CHOO]* [CH3C(OO)CO(OH)]* [CHOC(OH)OO]* [CHOCHOO]* [CHOC(CH3)OO]* [CH3COO’CH’CH2’CHCH2CHO’CCH3CH3]* Functional Groups | oo3.v | kv3. | ko3.v | kko3.v | kok3.v | ko3.v | koo3.v | kok3.v | koo3.v | 4.. | 4.. | 4.. | 4.. | 4..a | do4.. | 4..d | 4..d | 4..td | 4..k | o4.. | oo4.. | o4.. | 4o.. | o4.. | s4.. | 4..tk | 4..u | u4.. | ov4.. | k4..v | k4..v | ro6o. | roo6. | ro6. | roo6. | rov6. | ro6. | roo6. | 7. | 7. | 7. | 7. | 7.a | 7.do | 7.d | 7.d | 7.td 126 Table A.15 Chemical Codes: 7k32–8k33. Code 7k32 7m01 7o12 7o21 7o22 7o23 7o31 7tA2 7u41 7u42 7v21 7v31 8021 8031 8041 8042 8051 8052 8053 8061 8a21 8a31 8a32 8a33 8d21 8d31 8d32 8d33 8d41 8d42 8d43 8d44 8d45 8d46 8d47 8d48 8d51 8d52 8d53 8d54 8d55 8d56 8h21 8k31 8k33 C 3 0 1 2 2 2 3 10 4 4 2 3 2 3 4 4 5 5 5 6 2 3 3 3 2 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 2 3 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 1 2 4 4 4 6 16 6 6 1 3 3 5 7 7 9 9 9 11 1 3 3 3 1 2 3 3 2 4 3 3 5 3 3 5 3 3 5 5 7 7 3 3 3 N 0 1 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 2 3 4 3 3 3 3 2 2 5 5 2 2 2 2 2 2 2 2 4 5 4 6 3 6 4 3 7 7 5 5 5 4 4 3 6 6 6 6 3 3 4 4 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula [CH3COCHOO]* [HNOO]* [CH(OH)OO]* [CH2(OH)C(OH)OO]* [CH2(OH)CHOO]* [CH3C(OH)OO]* [CH3CH2C(OH)OO]* CH3CO’CH’CH2’CHCH2CHOO’CCH3CH3]* [CH2=CHC(CH3)OO]* [CH2=C(CH3)CHOO]* [(NO2)COCHOO]* [CH3COC(NO2)OO]* CH3CO(O.) CH3CH2CO(O.) CH3CH2CH2CO(O.) CH3CH(CH3)CO(O.) CH3CH2CH2CH2CO(O.) CH3CH2CH(CH3)CO(O.) CH3CH(CH3)CH2CO(O.) CH3CH(CH3)CH(CH3)CO(O.) CO(OH)CO(O.) CO(OH)CH(OH)CO(O.) CO(OH)CH2CO(O.) CO(OH)C(OH)(OH)CO(O.) CHOCO(O.) CHOC(NO2)(OH)CO(O.) CHOCH(OH)CO(O.) CHOCH2CO(O.) CHOCOC(NO2)(OH)CO(O.) CHOCH(OH)C(NO2)(OH)CO(O.) CHOCH(OH)COCO(O.) CHOCOCH(OH)CO(O.) CHOCH(OH)CH(OH)CO(O.) CHOCOCH2CO(O.) CHOCH2COCO(O.) CHOCH(CH3)CO(O.) CHOCOCH(OH)COCO(O.) CHOCOCOCH(OH)CO(O.) CHOCOCH(OH)CH(OH)CO(O.) CHOCH(OH)CH(OH)COCO(O.) CHOCH(CH3)CH2CO(O.) CHOCH2CH(CH3)CO(O.) CH2(OOH)CO(O.) CH2(OH)COCO(O.) CH3COCO(O.) Functional Groups | 7.k | 7.m | 7.o | 7.oo | 7.o | 7.o | 7.o | 7.tk | 7.u | 7.u | 7.kv | 7.kv | 8. | 8. | 8. | 8. | 8. | 8. | 8. | 8. | 8.a | 8.ao | 8.a | 8.aoo | d8. | do8.v | do8. | d8. | dko8.v | doo8.v | dok8. | 8.okd | doo8. | dk8. | dk8. | d8. | dkok8. | dkko8. | dkoo8. | dook8. | d8. | d8. | h8. | ok8. | k8. 127 Table A.16 Chemical Codes:8k40–8o35. Code 8k40 8k45 8k46 8k47 8k48 8k49 8k4A 8k50 8k51 8k52 8k53 8k55 8k57 8k58 8k59 8k5A 8k5B 8k5C 8k81 8l11 8n21 8n31 8n32 8n33 8n34 8n41 8n42 8n43 8n44 8n45 8n46 8n47 8n48 8n51 8n52 8n53 8n54 8n55 8o22 8o23 8o31 8o32 8o33 8o34 8o35 C 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 8 1 2 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 2 2 3 3 3 3 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 5 5 5 5 5 5 5 7 5 5 5 5 7 7 5 7 7 7 13 0 2 1 2 2 4 3 3 4 3 4 4 6 6 5 6 5 6 6 3 3 5 5 5 5 5 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 1 1 2 2 1 2 1 1 1 1 2 1 2 1 1 0 0 0 0 0 0 0 O 4 4 5 4 4 3 5 4 5 6 6 5 5 6 4 3 4 3 4 2 5 8 6 6 5 9 8 6 9 7 7 5 6 9 7 9 7 8 4 3 3 4 4 5 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3CH(OH)COCO(O.) CH3COCH(OH)CO(O.) CH2(OH)COCH(OH)CO(O.) CH2(OH)COCH2CO(O.) CH2(OH)CH2COCO(O.) CH3COCH2CO(O.) CH2(OH)CH(OH)COCO(O.) CH3COCH(OH)CH2CO(O.) CH3COCOCH(OH)CO(O.) CH2(OH)COCOCH(OH)CO(O.) CH2(OH)COCH(OH)COCO(O.) CH3COCH(OH)COCO(O.) CH3COCH(OH)CH(OH)CO(O.) CH2(OH)COCH(OH)CH(OH)CO(O.) CH3COCOCH2CO(O.) CH3COCH2CH2CO(O.) CH3CH(OH)COCH2CO(O.) CH3COCH(CH3)CO(O.) CH3C(OH)(CH3)CH(COCH3)CH2CO(O.) CO(O.)(Cl) CH2(ONO2)CO(O.) CO(NO2)CH(ONO2)CO(O.) CH2(ONO2)COCO(O.) CHOCH(ONO2)CO(O.) CH3CH(ONO2)CO(O.) CO(NO2)CH(ONO2)CH(OH)CO(O.) CH3COC(NO2)(ONO2)CO(O.) CH3COCH(ONO2)CO(O.) CO(NO2)CH(OH)CH(ONO2)CO(O.) CH2(ONO2)COCH(OH)CO(O.) CHOCH(ONO2)CH(OH)CO(O.) CH3CH(ONO2)CH2CO(O.) CH2(OH)CH(ONO2)CH2CO(O.) CH3COC(NO2)(ONO2)CH(OH)CO(O.) CH3COCH(ONO2)CH(OH)CO(O.) CH3COC(NO2)(OH)CH(ONO2)CO(O.) CH3COCH(OH)CH(ONO2)CO(O.) CH2(ONO2)COCH(OH)CH(OH)CO(O.) CH(OH)(OH)CO(O.) CH2(OH)CO(O.) CH3CH(OH)CO(O.) CH2(OH)CH(OH)CO(O.) CH3C(OH)(OH)CO(O.) CH2(OH)C(OH)(OH)CO(O.) CH2(OH)CH2CO(O.) Functional Groups | ok8. | ko8. | ok8. | ok8. | ok8. | k8. | ook8. | ko8. | kko8. | okko8. | okok8. | kok8. | koo8. | okoo8. | kk 8. | k8. | ok8. | k8. | ok8. | 8.l | n8. | kn8.v | nk8. | dn8. | n8. | kno8.v | kn8.v | kn8. | kon8.v | nko8. | dno8. | 8.n | o8.n | kno8.v | kno8. | kon8.v | kon8. | nkoo8. | oo8. | o8. | o8. | oo8. | oo8. | ooo8. | o8. 128 Table A.17 Chemical Codes: 8o41–BRO. Code 8o41 8o42 8o43 8o44 8o45 8o46 8o47 8o51 8o52 8o53 8o54 8o55 8o56 8o61 8r71 8t91 8tA1 8u31 8u32 8u41 8u42 8u43 8u44 8u51 8u52 8u53 8v21 8v22 8v32 8v41 8v42 8v43 8v44 8v54 8v56 ? BR BR2 BRCL BRO C 4 4 4 4 4 4 4 5 5 5 5 5 5 6 7 9 10 3 3 4 4 4 4 5 5 5 2 2 3 4 4 4 4 5 5 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 1 H 7 7 7 7 7 7 7 9 9 9 9 9 9 11 5 13 15 2 3 2 3 5 2 4 5 5 0 2 2 2 2 4 4 4 6 0 0 0 0 0 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 O 3 3 3 4 3 4 3 3 3 3 3 4 3 3 2 3 3 6 4 5 3 2 5 5 3 3 5 6 6 7 7 6 7 7 7 0 0 0 0 1 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3C(OH)(CH3)CO(O.) CH2(OH)CH2CH2CO(O.) CH3CH(OH)CH2CO(O.) CH2(OH)CH(OH)CH2CO(O.) CH3CH2CH(OH)CO(O.) CH2(OH)CH2CH(OH)CO(O.) CH2(OH)CH(CH3)CO(O.) CH3CH(OH)CH2CH2CO(O.) CH3CH2CH(OH)CH2CO(O.) CH2(OH)CH(CH3)CH2CO(O.) CH2(OH)CH2CH(CH3)CO(O.) CH3CH(OH)CH(OH)CH2CO(O.) CH3CH(OH)CH(CH3)CO(O.) CH2(OH)CH(CH3)CH(CH3)CO(O.) C6H5CO(O.) apR2C8H13OCO(O.) apR1C9H15OCO(O.) Cd(NO2)(OH)=Cd(OH)CO(O.) CdH(OH)=Cd(OH)CO(O.) CO(NO2)CdH=CdHCO(O.) CHOCdH=CdHCO(O.) CdH2=Cd(CH3)CO(O.) CHOCdH=Cd(NO2)CO(O.) CH3COCd(NO2)=CdHCO(O.) CH3COCdH=CdHCO(O.) CHOCdH=Cd(CH3)CO(O.) CO(NO2)CO(O.) C(OH)(OH)(NO2)CO(O.) CO(NO2)CH(OH)CO(O.) CO(NO2)COCH(OH)CO(O.) CO(NO2)CH(OH)COCO(O.) CH3COC(NO2)(OH)CO(O.) CO(NO2)CH(OH)CH(OH)CO(O.) CH3COC(NO2)(OH)COCO(O.) CH3COC(NO2)(OH)CH(OH)CO(O.) products Br Br2 BrCl BrO Functional Groups | o8. | o8. | o8. | oo8. | o8. | oo8. | o8. | o8. | o8. | o8. | o8. | oo8. | o8. | o8. | r8. | k 8.t | k 8.t | ouo8.v | ouo8. | ku8.v | du8. | 8.u | duv8. | ku8.v | ku 8. | du 8. | kv8. | oo8.v | ko8.v | kko8.v | kok8.v | ko8.v | koo8.v | kok8.v | koo8.v | |b | bb | bl |b 129 Table A.18 Chemical Codes: C–F142. Code C C2H2 C2H4 C2H5 C2H6 C3H6 C3H8 C6H6 CCL3 CCL4 CF2O CF3 CF3O CF4 CH2O CH3 CH3O CH3S CH4 CHF2 CL CL2 CL2O CLNO CLO CLO3 CLOO CO CO2 CS CS2 F F11 F12 F123 F124 F132 F141 F142 C 1 2 2 2 2 3 3 6 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 1 1 2 2 2 2 2 X 0 0 0 0 0 0 0 0 3 4 2 3 3 4 0 0 0 0 0 2 1 2 2 1 1 1 1 0 0 0 0 1 4 4 5 5 4 3 3 H 0 2 4 5 6 6 8 6 0 0 0 0 0 0 2 3 3 3 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 3 3 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 0 1 1 1 3 2 1 2 0 0 0 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 Full Chemical Formula C CdH=-CdH CdH2=CdH2 CH3CH2. CH3CH3 CH3CdH=CdH2 CH3CH2CH3 C6H6 C.(Cl3) C(Cl4) CO(F2) C(F3) C(F3)(O.) C(F4) CH2O CH3 CH3(O.) CH3S CH4 CH.(F2) Cl Cl2 Cl2O ClNO ClO ClO3 ClOO CO CO2 CS CS2 F C(F)(Cl3) C(F2)(Cl2) CH(Cl2)C(F3) C(F3)CH(Cl)(F) CH2(Cl)C(Cl)(F2) CH3C(Cl2)(F) CH3C(F2)(Cl) Functional Groups | |u | uc | 0. |c |u |c |r | 0.l |l | fd | 0.f | 1.f |f |d | 0. | 1. |s |c | 0.f |l |l |l |l |l |l |l | | |s |s |f | fl | fl | fl | fl | fl | fl | fl 130 Table A.19 Chemical Codes: F21–MECN. Code F21 F22 F31 FNO FO FO2 FONO H H2 H2O H2O2 H2S HBR HCL HCN HCO HF HNO HNO2 HNO3 HNO4 HNOO HO HO2 HOBR HOCL HS HSNO HSO HSO2 HSO3 HV M MECN C 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 X 3 3 2 1 1 1 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 H 1 1 2 0 0 0 0 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 3 N 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 1 O 0 0 0 1 1 2 2 0 0 1 2 0 0 0 0 1 0 1 2 3 4 2 1 2 1 1 0 1 1 2 3 0 0 0 S 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 Full Chemical Formula CH(F)(Cl2) CH(F2)(Cl) CH2(Cl)(F) FNO FO FO2 FONO H H2 H2O H2O2 H2S HBR HCl HCN HCO HF HNO HNO2 HNO3 HNO4 HNOO HO HO2 HOBr HOCl HS HSNO HSO HSO2 HSO3 hv M CH3CN Functional Groups | fl | fl | fl |f |f |f |f | | | | |s |b |l |q | 0.d |f | | | | | 4..m | | |b |l |s |s |s |s |s | | |q 131 Table A.20 Chemical Codes: N–aa33. Code N N2 N2O N2O4 N2O5 NA NACL NAO NAO2 NAO3 NAOH NH2 NH2O NH3 NO NO2 NO3 O1D O2 O3 O3P OCLO OCS S SCL SO SO2 SO3 XAOO XPOO XSOO XTOO a011 a021 a031 a041 a042 a051 a052 a053 a061 aa21 aa31 aa32 aa33 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 2 3 4 4 5 5 5 6 2 3 3 3 X 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 0 0 0 0 0 0 0 0 0 0 1 2 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 6 8 8 10 10 10 12 2 4 4 4 N 1 2 2 2 2 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 1 4 5 0 0 1 2 3 1 0 1 0 1 2 3 1 2 3 1 2 1 0 0 1 2 3 0 0 0 0 2 2 2 2 2 2 2 2 2 4 5 4 6 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula N N2 N2O N2O4 N2O5 Na NaCl NaO NaO2 NaO3 NaOH NH2 NH2O NH3 NO NO2 NO3 O* O2 O3 O OClO OCS S SCl SO SO2 SO3 a-counter p-counter s-counter t-counter CHO(OH) CH3CO(OH) CH3CH2CO(OH) CH3CH2CH2CO(OH) CH3CH(CH3)CO(OH) CH3CH2CH2CH2CO(OH) CH3CH2CH(CH3)CO(OH) CH3CH(CH3)CH2CO(OH) CH3CH(CH3)CH(CH3)CO(OH) CO(OH)CO(OH) CO(OH)CH(OH)CO(OH) CO(OH)CH2CO(OH) CO(OH)C(OH)(OH)CO(OH) Functional Groups | | | | | |q |q |q |q |q |q |m |m |m | | | | | | | |l |s |s | sl |s |s |s | | | | |a |a |a |a |a |a |a |a |a | aa | aoa | aa | aooa 132 Table A.21 Chemical Codes: ad21–ak33. Code ad21 ad31 ad32 ad33 ad34 ad35 ad41 ad42 ad43 ad44 ad45 ad46 ad47 ad48 ad49 ad51 ad52 ad53 ad54 ad55 ad56 ag21 ag31 ag32 ag33 ag40 ah21 ah31 ah32 ah41 ah42 ah43 ah44 ah50 ah51 ah52 ak31 ak33 C 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 2 3 3 3 4 2 3 3 4 4 4 4 5 5 5 3 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 2 3 4 4 2 4 3 5 4 4 6 4 4 6 6 4 4 6 6 8 8 2 4 4 4 6 4 6 4 8 8 6 8 8 8 8 4 4 N 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 6 4 3 4 5 7 7 5 5 5 4 4 3 4 6 6 6 6 3 3 5 6 5 7 7 4 4 5 4 5 5 5 6 6 7 4 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CO(OH)CHO CO(OH)C(OH)(NO2)CHO CO(OH)CH(OH)CHO CO(OH)CH2CHO CO(OH)COCHO CO(OH)C(OH)(OH)CHO CO(OH)C(NO2)(OH)COCHO CO(OH)C(NO2)(OH)CH(OH)CHO CO(OH)COCH(OH)CHO CO(OH)CH(OH)COCHO CO(OH)CH(OH)CH(OH)CHO CO(OH)CH2COCHO CO(OH)COCH2CHO CO(OH)CH(CH3)CHO CO(OH)CH(OH)CH2CHO CO(OH)COCH(OH)COCHO CO(OH)CH(OH)COCOCHO CO(OH)CH(OH)CH(OH)COCHO CO(OH)COCH(OH)CH(OH)CHO CO(OH)CH2CH(CH3)CHO CO(OH)CH(CH3)CH2CHO CO(OH)CO(OOH) CO(OH)CH(OH)CO(OOH) CO(OH)CH2CO(OOH) CO(OH)C(OH)(OH)CO(OOH) CO(OH)C(OOH)(CH3)CO(OOH) CO(OH)CH2(OOH) CH3CH(OOH)CO(OH) CO(OH)COCH2(OOH) CH3CH2CH(OOH)CO(OH) CH2(OH)C(OOH)(CH3)CO(OH) CH3CH(OOH)COCO(OH) CH2(OOH)CH2CH(OH)CO(OH) CH3COCH(OH)CH(OOH)CO(OH) CO(OH)CH(OH)CH(OOH)COCH3 CO(OH)CH(OH)CH(OH)COCH2(OOH) CH2(OH)COCO(OH) CH3COCO(OH) Functional Groups | da | dova | doa | da | dka | dooa | dkoav | dooav | doka | dkoa | dooa | dka | dka | da | doa | dkoka | dkkoa | dkooa | dooka | da | da | ga | aog | ag | aoog | ahg | ha | ha | hka | ha | oha | hka | hoa | koho | aohk | aookh | oka | ka 133 Table A.22 Chemical Codes: ak40–an55. Code ak40 ak45 ak46 ak47 ak48 ak49 ak4A ak4C ak4D ak50 ak51 ak52 ak53 ak55 ak57 ak58 ak59 ak5A ak5B ak5C ak81 an21 an31 an32 an33 an34 an35 an40 an41 an42 an43 an44 an45 an46 an47 an48 an49 an4A an4B an51 an52 an53 an54 an55 C 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 8 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 6 6 6 6 6 6 6 6 4 8 6 6 6 6 8 8 6 8 8 8 14 3 2 3 3 3 5 7 4 4 5 4 5 5 7 7 7 5 7 6 7 6 7 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 1 1 1 1 2 2 1 2 1 1 1 1 1 1 1 2 1 2 1 1 O 4 4 5 4 4 3 5 3 4 4 5 6 6 5 5 6 4 3 4 3 4 5 8 6 6 6 5 5 9 8 6 9 7 7 5 6 6 6 6 9 7 9 7 8 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3CH(OH)COCO(OH) CO(OH)CH(OH)COCH3 CO(OH)CH(OH)COCH2(OH) CO(OH)CH2COCH2(OH) CH2(OH)CH2COCO(OH) CO(OH)CH2COCH3 CH2(OH)CH(OH)COCO(OH) CH3CH2COCO(OH) CH3COCOCO(OH) CO(OH)CH2CH(OH)COCH3 CO(OH)CH(OH)COCOCH3 CO(OH)CH(OH)COCOCH2(OH) CH2(OH)COCH(OH)COCO(OH) CH3COCH(OH)COCO(OH) CO(OH)CH(OH)CH(OH)COCH3 CO(OH)CH(OH)CH(OH)COCH2(OH) CO(OH)CH2COCOCH3 CO(OH)CH2CH2COCH3 CH3CH(OH)COCH2CO(OH) CO(OH)CH(CH3)COCH3 CH3C(OH)(CH3)CH(CH2CO(OH))COCH3 CO(OH)CH2(ONO2) CO(OH)CH(ONO2)CO(NO2) CO(OH)COCH2(ONO2) CO(OH)CH(ONO2)CHO CO(OH)COCH2(ONO2) CH3CH(ONO2)CO(OH) CH3CH2CH(ONO2)CO(OH) CO(OH)CH(OH)CH(ONO2)CO(NO2) CH3COC(ONO2)(NO2)CO(OH) CH3COCH(ONO2)CO(OH) CO(NO2)CH(OH)CH(ONO2)CO(OH) CO(OH)CH(OH)COCH2(ONO2) CO(OH)CH(OH)CH(ONO2)CHO CO(OH)CH2CH(ONO2)CH3 CO(OH)CH2CH(ONO2)CH2(OH) CH2(OH)C(ONO2)(CH3)CO(OH) CO(OH)COCH(ONO2)CH3 CH2(ONO2)CH2CH(OH)CO(OH) CO(OH)CH(OH)C(NO2)(ONO2)COCH3 CO(OH)CH(OH)CH(ONO2)COCH3 CH3COC(OH)(NO2)CH(ONO2)CO(OH) CH3COCH(OH)CH(ONO2)CO(OH) CO(OH)CH(OH)CH(OH)COCH2(ONO2) Functional Groups | oka | koa | oka | oka | oka | ka | ooka | ka | kk a | koa | kkoa | okkoa | okoka | koka | kooa | okooa | kk a | ka | oka | ka | oak | na | vkna | nka | dna | nka | na | na | vknoa | knva | kna | vkona | nkoa | dnoa | na | ona | ona | nka | noa | kvnoa | knoa | kovna | kona | nkooa 134 Table A.23 Chemical Codes: ao22–av56. Code ao22 ao23 ao31 ao32 ao33 ao34 ao35 ao41 ao42 ao43 ao44 ao45 ao46 ao47 ao48 ao50 ao51 ao52 ao53 ao54 ao55 ao56 ao61 ar71 at91 atA1 au31 au32 au41 au42 au43 au44 au51 au52 au53 av11 av21 av22 av32 av41 av42 av43 av44 av54 av56 C 2 2 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 6 7 9 10 3 3 4 4 4 4 5 5 5 1 2 2 3 4 4 4 4 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 4 6 6 6 6 6 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 12 6 14 16 3 4 3 4 6 3 5 6 6 1 3 1 3 3 3 5 5 5 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0 0 1 1 1 1 1 1 1 1 1 1 O 4 3 3 4 4 5 3 3 3 3 4 3 4 3 4 5 3 3 3 3 4 3 3 2 3 3 6 4 5 3 2 5 5 3 3 4 6 5 6 7 7 6 7 7 7 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH(OH)(OH)CO(OH) CH2(OH)CO(OH) CH3CH(OH)CO(OH) CH2(OH)CH(OH)CO(OH) CH3C(OH)(OH)CO(OH) CH2(OH)C(OH)(OH)CO(OH) CH2(OH)CH2CO(OH) CH3C(OH)(CH3)CO(OH) CH2(OH)CH2CH2CO(OH) CH3CH(OH)CH2CO(OH) CH2(OH)CH(OH)CH2CO(OH) CH3CH2CH(OH)CO(OH) CH2(OH)CH2CH(OH)CO(OH) CH2(OH)CH(CH3)CO(OH) CH2(OH)C(OH)(CH3)CO(OH) CH2(OH)C(OH)(CH3)CH(OH)CO(OH) CH3CH(OH)CH2CH2CO(OH) CH3CH2CH(OH)CH2CO(OH) CH2(OH)CH(CH3)CH2CO(OH) CH2(OH)CH2CH(CH3)CO(OH) CH3CH(OH)CH(OH)CH2CO(OH) CH3CH(OH)CH(CH3)CO(OH) CH2(OH)CH(CH3)CH(CH3)CO(OH) C6H5CO(OH) apR2C8H13OCO(OH) apR1C9H15OCO(OH) Cd(OH)(NO2)=Cd(OH)CO(OH) CdH(OH)=Cd(OH)CO(OH) CO(OH)CdH=CdHCO(NO2) CO(OH)CdH=CdHCHO CdH2=Cd(CH3)CO(OH) CO(OH)Cd(NO2)=CdHCHO CO(OH)CdH=Cd(NO2)COCH3 CO(OH)CdH=CdHCOCH3 CO(OH)Cd(CH3)=CdHCHO CO(NO2)(OH) C(OH)(OH)(NO2)CO(OH) CO(OH)CO(NO2) CO(OH)CH(OH)CO(NO2) CO(NO2)COCH(OH)CO(OH) CO(OH)COCH(OH)CO(NO2) CO(OH)C(OH)(NO2)COCH3 CO(OH)CH(OH)CH(OH)CO(NO2) CO(OH)COC(OH)(NO2)COCH3 CO(OH)CH(OH)C(NO2)(OH)COCH3 Functional Groups | ooa | oa | oa | ooa | ooa | oooa | oa | oa | oa | oa | ooa | oa | ooa | oa | ooa | oooa | oa | oa | oa | oa | ooa | oa | oa | ra | k at | k at | ouoav | ouoa | vkua | dua | ua | duva | kvua | kua | dua | av | ooav | kva | vkoa | vkkoa | vkoka | kova | kooav | kovka | kooav 135 Table A.24 Chemical Codes: b011–dk36. Code b011 bn01 c041 c042 c051 c052 c053 c061 c062 c071 c081 d021 d031 d041 d042 d051 d052 d053 d061 dd21 dd31 dd32 dd33 dd34 dd41 dd42 dd43 dd44 dd45 dd51 dd52 dd53 dd54 dd55 dd56 dd57 dd61 ddA2 dk33 dk35 dk36 C 1 0 4 4 5 5 5 6 6 7 8 2 3 4 4 5 5 5 6 2 3 3 3 3 4 4 4 4 4 5 5 5 5 5 5 5 6 10 3 3 3 X 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 0 10 10 12 12 12 14 14 16 18 4 6 8 8 10 10 10 12 2 4 2 4 4 2 6 4 4 6 2 4 4 6 8 8 8 12 14 4 4 4 N 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 3 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 3 3 2 4 4 4 4 3 2 5 5 5 5 2 4 3 2 3 2 3 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3(Br) BrONO2 CH3CH2CH2CH3 CH3CH(CH3)CH3 C5H12 CH3CH2CH2CH2CH3 CH3CH(CH3)CH2CH3 C6H14 CH3CH(CH3)CH(CH3)CH3 C7H16 C8H18 CH3CHO CH3CH2CHO CH3CH2CH2CHO CH3CH(CH3)CHO CH3CH2CH2CH2CHO CH3CH(CH3)CH2CHO CH3CH2CH(CH3)CHO CH3CH(CH3)CH(CH3)CHO CHOCHO CHOCH(OH)CHO CHOCOCHO CHOCH2CHO CHOC(OH)(OH)CHO CHOCOCOCHO CHOCH(OH)CH(OH)CHO CHOCH(OH)COCHO CHOCH2COCHO CHOCH(CH3)CHO CHOCOCOCOCHO CHOCOCH(OH)COCHO CHOCH(OH)COCOCHO CHOCH(OH)CH(OH)COCHO CHOCH(CH3)CH2CHO CHOCH(OH)C(OH)(CH3)CHO CHOC(OH)(CH3)CH2CHO C5H11(OH)CO CHOCO’CH’CH2’CHCH2CHO’CCH3CH3 CH3COCHO CH2(OH)COCHO CH(OH)(OH)COCHO Functional Groups |b | bn |c |c | cz |c |c | cz |c | cz | cz |d |d |d |d |d |d |d |d | dd | ddo | ddk | dd | dood | dkkd | dood | dokd | dkd | dd | dkkkd | dkokd | dkkod | dkood | dd | dood | dod | okddz | dktd | dk | odk | dkoo 136 Table A.25 Chemical Codes: dk40–do49. Code dk40 dk43 dk47 dk48 dk49 dk4A dk4B dk4C dk4D dk4E dk51 dk52 dk53 dk54 dk57 dk58 dk59 dk5A dk5B dk5C dk5D dk5E dk5F dk5G dk81 dk82 do22 do23 do31 do32 do33 do34 do35 do40 do41 do42 do43 do44 do45 do46 do48 do49 C 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 8 8 2 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 4 6 6 6 6 6 6 6 6 4 4 6 6 6 8 8 6 6 8 8 8 8 8 16 14 4 4 6 6 6 6 6 8 8 8 8 8 8 8 8 8 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 4 4 3 2 3 3 2 3 4 4 5 4 5 5 5 4 3 4 2 3 2 3 2 2 3 3 2 3 3 4 2 2 3 2 2 2 2 3 2 3 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3COCOCHO CH2(OH)COCOCHO CH2(OH)COCH(OH)CHO CH3COCH(OH)CHO CH3CH2COCHO CH2(OH)COCH2CHO CH2(OH)CH2COCHO CH3COCH2CHO CH3CH(OH)COCHO CH2(OH)CH(OH)COCHO CH3COCOCOCHO CH2(OH)COCOCOCHO CH3COCOCH(OH)CHO CH2(OH)COCOCH(OH)CHO CH2(OH)COCH(OH)COCHO CH2(OH)COCH(OH)CH(OH)CHO CH3COCH(OH)CH(OH)CHO CH3COCOCH2CHO CH3COCH(OH)COCHO CH3CH2COCH2CHO CH3COCH(OH)CH2CHO CH3COCH2CH2CHO CH3CH(OH)COCH2CHO CH3COCH(CH3)CHO C7H15(OH)CO CH3COCH(C(OH)(CH3)CH3)CH2CHO CH(OH)(OH)CHO CH2(OH)CHO CH2(OH)CH(OH)CHO CH3C(OH)(OH)CHO CH2(OH)C(OH)(OH)CHO CH3CH(OH)CHO CH2(OH)CH2CHO CH3CH(OH)CH(OH)CHO CH2(OH)CH2CH2CHO CH3C(OH)(CH3)CHO CH2(OH)CH(CH3)CHO CH3CH(OH)CH2CHO CH2(OH)CH(OH)CH2CHO CH3CH2CH(OH)CHO CH2(OH)CH2CH(OH)CHO CH2(OH)C(OH)(CH3)CHO Functional Groups | kk d | okkd | okod | kod | dk | okd | okd | kd | okd | dkoo | kkkd | okkkd | kkod | okkod | okokd | okood | kood | kk d | kokd | kd | kod | dk | okd | dk | odkk | kdo | ood | od | ood | ood | oood | od | od | doo | od | od | od | od | ood | od | ood | doo 137 Table A.26 Chemical Codes: do50–en72. Code do50 do51 do52 do53 do54 do55 do56 do57 do59 do5A do61 do62 do63 do64 do65 do66 dr71 dt81 dt82 dt91 dt92 dtA1 dtA3 dv11 dv21 dv22 dv31 dv32 dv41 dv42 dv44 dv45 dv46 dv55 dv56 ea41 ed31 ed41 ed51 edB1 edC1 eh72 ek71 en72 C 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 7 8 8 9 9 10 10 1 2 2 3 3 4 4 4 4 4 5 5 4 3 4 5 11 12 7 7 7 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 10 10 10 10 10 10 10 10 10 10 12 12 12 12 12 12 6 12 14 14 14 16 16 1 3 1 1 3 1 3 3 5 5 5 7 6 4 6 8 18 20 12 12 11 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 O 4 3 2 2 2 2 3 2 2 4 3 2 4 3 2 3 1 2 2 2 3 2 3 3 5 4 5 5 6 6 6 6 5 6 6 5 3 4 4 4 4 5 4 6 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)C(OH)(CH3)CH(OH)CHO CH2(OH)CH(OH)CH(CH3)CHO CH3CH(OH)CH2CH2CHO CH3CH2CH(OH)CH2CHO CH2(OH)CH(CH3)CH2CHO CH2(OH)CH2CH(CH3)CHO CH3CH(OH)CH(OH)CH2CHO CH3CH(OH)CH(CH3)CHO CH3C(OH)(CH3)CH2CHO CH2(OH)CH(OH)C(OH)(CH3)CHO CH2(OH)CH(CH2(OH))CH(CH3)CHO CH2(OH)CH(CH3)CH(CH3)CHO CH2(OH)CH(CH2(OH))CH(CH2(OH))CHO CH2(OH)CH(CH3)CH(CH2(OH))CHO CH3C(OH)(CH3)CH(CH3)CHO CH2(OH)C(OH)(CH3)CH(CH3)CHO C6H5CHO ’CO’CH2’CH(CH2CHO)’C(CH3)CH3 HO’CH’CH2’CHCH2CHO’CCH3CH3 CH3CO’CH’CH2’CH(CHO)’C(CH3)CH3 CH3CO’CH’CH2’CH(CH2(OH))’CCH3CHO CH3CO’CH’CH2’CH(CH2CHO)’CCH3CH3 CH2(OH)CO’CH’CH2’CHCH2CHO’CCH3CH3 (NO2)CHO C(NO2)(OH)(OH)CHO CO(NO2)CHO CO(NO2)COCHO CO(NO2)CH(OH)CHO CO(NO2)COCOCHO CO(NO2)COCH(OH)CHO CO(NO2)CH(OH)COCHO CO(NO2)CH(OH)CH(OH)CHO CH3COC(OH)(NO2)CHO CH3COC(OH)(NO2)COCHO CH3COC(OH)(NO2)CH(OH)CHO CH3C(OH)(CO(OH))OCHO CH3COOCHO CH3C(OH)(CHO)OCHO CH3C(OH)(CHO)OCOCH3 apX1C9CH16O(OH)OCHO apX1C9CH16O(OH)OCOCH3 CH3COCOCH2OC(OOH)(CH3)CH3 CH3COCOCH2OC(CH3)(OH)CH3 CH3COCOCH2OC(CH3)(ONO2)CH3 Functional Groups | oood | doo | do | od | od | do | doo | do | do | oood | doo | od | oood | ood | do | doo | rd | kdt | otd | ktd | ktod | kdt | oktd | dv | oodv | kdv | kkdv | kodv | kkkdv | kkodv | kokdv | koodv | dokv | dkokv | dookv | oae | ed | edo | oed | eod t | eod t | kk eh | kkeo | kken 138 Table A.27 Chemical Codes: eo21–gd49. Code eo21 eo31 eo41 eo42 eo51 et71 etB2 etC2 eu51 eu52 eu61 eu62 f022 f024 fb11 fb12 fl11 fl12 fl14 fl15 fn01 fo11 g012 g021 g031 g041 g042 g051 g052 g053 g061 gd21 gd31 gd32 gd33 gd41 gd42 gd43 gd44 gd45 gd46 gd47 gd48 gd49 C 2 3 4 4 5 7 11 12 5 5 6 6 2 2 1 1 1 1 1 1 0 1 1 2 3 4 4 5 5 5 6 2 3 3 3 4 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 2 4 4 4 2 3 3 3 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 6 8 8 10 12 18 20 8 8 10 10 4 2 0 0 0 0 1 1 0 1 2 4 6 8 8 10 10 10 12 2 3 4 4 3 5 4 4 6 4 4 6 6 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 O 3 3 3 3 3 3 4 4 3 3 3 3 0 0 0 0 1 3 1 1 3 1 3 3 3 3 3 3 3 3 3 4 7 5 4 8 8 6 6 6 5 5 4 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CHOOCH2(OH) CH3COOCH2(OH) CH3COOCH(OH)CH3 CH3C(OH)(CH3)OCHO CH3C(OH)(CH3)OCOCH3 CH3CO’C(OH)’CH2’O’C(CH3)CH3 apR1C9H15OCH(OH)OCHO apR1C9H15OCH(OH)OCOCH3 CH3C(OH)(OCHO)CH=CH2 CH2=C(CH3)CH(OH)OCHO CH3C(OH)(OCOCH3)CH=CH2 CH2=C(CH3)CH(OH)OCOCH3 CH3CH(F2) C(F3)CH2(F) C(Br)(Cl)(F2) C(Br)(F3) C(F)ClO C(F)(Cl2)ONO2 C(F)(Cl2)(OH) C(F2)(Cl)(OH) FONO2 C(F3)(OH) CHO(OOH) CH3CO(OOH) CH3CH2CO(OOH) CH3CH(CH3)CO(OOH) CH3CH2CH2CO(OOH) CH3CH2CH2CH2CO(OOH) CH3CH(CH3)CH2CO(OOH) CH3CH2CH(CH3)CO(OOH) CH3CH(CH3)CH(CH3)CO(OOH) CO(OOH)CHO CO(OOH)C(NO2)(OH)CHO CO(OOH)CH(OH)CHO CO(OOH)CH2CHO CO(OOH)C(NO2)(OH)COCHO CO(OOH)C(NO2)(OH)CH(OH)CHO CO(OOH)COCH(OH)CHO CO(OOH)CH(OH)COCHO CO(OOH)CH(OH)CH(OH)CHO CO(OOH)CH2COCHO CO(OOH)COCH2CHO CO(OOH)CH(CH3)CHO CH3COCH2CO(OOH) Functional Groups | oe | oe | eo | eo | eo | ktoe | k eot | k eot | oeu | uoe | eou | eou |f |f | bfl | bf | fld | fln | flo | flo | fn | fo |g |g |g |g |g |g |g |g |g | dg | dogv | dog | dg | dkogv | doog | dokg | dkog | doog | dkg | dkg | dg | dg 139 Table A.28 Chemical Codes: gd51–gn55. Code gd51 gd52 gd53 gd54 gd55 gd56 gg40 gh21 gh40 gh41 gk31 gk33 gk40 gk45 gk46 gk47 gk48 gk4A gk50 gk51 gk52 gk54 gk55 gk57 gk58 gk5A gk5B gk5C gk5D gn21 gn31 gn32 gn34 gn40 gn41 gn42 gn43 gn45 gn47 gn48 gn49 gn51 gn52 gn53 gn54 gn55 C 5 5 5 5 5 5 4 2 4 4 3 3 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 2 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 4 6 6 8 8 6 4 8 6 4 4 6 6 6 6 6 6 8 6 6 6 6 8 8 8 8 8 6 3 2 3 5 7 4 4 5 5 7 7 4 6 7 6 7 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 1 1 2 2 1 1 1 1 2 2 1 2 1 1 O 7 7 7 7 4 4 8 5 6 6 5 4 5 5 6 5 5 6 5 6 7 6 7 6 7 4 5 4 5 6 9 7 6 7 10 9 7 8 6 7 10 10 8 10 8 9 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CO(OOH)COCH(OH)COCHO CO(OOH)CH(OH)COCOCHO CO(OOH)CH(OH)CH(OH)COCHO CO(OOH)COCH(OH)CH(OH)CHO CO(OOH)CH2CH(CH3)CHO CO(OOH)CH(CH3)CH2CHO CO(OOH)C(OOH)(CH3)CO(OOH) CH2(OOH)CO(OOH) CH2(OH)C(OOH)(CH3)CO(OOH) CO(OOH)C(OOH)(CH3)CHO CH2(OH)COCO(OOH) CH3COCO(OOH) CH3CH(OH)COCO(OOH) CH3COCH(OH)CO(OOH) CH2(OH)COCH(OH)CO(OOH) CH2(OH)COCH2CO(OOH) CH2(OH)CH2COCO(OOH) CH2(OH)CH(OH)COCO(OOH) CH3COCH(OH)CH2CO(OOH) CH3COCOCH(OH)CO(OOH) CH2(OH)COCOCH(OH)CO(OOH) CH3COCH(OH)COCO(OOH) CH2(OH)COCH(OH)COCO(OOH) CH3COCH(OH)CH(OH)CO(OOH) CH2(OH)COCH(OH)CH(OH)CO(OOH) CH3COCH2CH2CO(OOH) CH3CH(OH)COCH2CO(OOH) CH3COCH(CH3)CO(OOH) CH3COCOCH2CO(OOH) CH2(ONO2)CO(OOH) CO(NO2)CH(ONO2)CO(OOH) CH2(ONO2)COCO(OOH) CH3CH(ONO2)CO(OOH) CH2(OH)C(ONO2)(CH3)CO(OOH) CO(NO2)CH(ONO2)CH(OH)CO(OOH) CH3COC(NO2)(ONO2)CO(OOH) CH3COCH(ONO2)CO(OOH) CH2(ONO2)COCH(OH)CO(OOH) CH3CH(ONO2)CH2CO(OOH) CH2(OH)CH(ONO2)CH2CO(OOH) CO(NO2)CH(OH)CH(ONO2)CO(OOH) CH3COC(NO2)(ONO2)CH(OH)CO(OOH) CH3COCH(ONO2)CH(OH)CO(OOH) CH3COC(NO2)(OH)CH(ONO2)CO(OOH) CH3COCH(OH)CH(ONO2)CO(OOH) CH2(ONO2)COCH(OH)CH(OH)CO(OOH) Functional Groups | dkokg | dkkog | dkoog | dookg | dg | dg | ghg | gh | ohg | ghd | okg | kg | okg | kog | okog | okg | okg | ookg | kog | kkog | okkog | kokg | okokg | koog | okoog | kg | okg | kg | kkg | ng | vkng | nkg | ng | ong | vknog | kvng | kng | nkog | ng | ong | vkong | kvnog | knog | kvong | kong | nkoog 140 Table A.29 Chemical Codes: go22–gv62. Code go22 go23 go31 go32 go33 go34 go35 go40 go41 go42 go43 go44 go45 go46 go47 go50 go51 go52 go53 go54 go55 go56 go61 gr71 gt91 gtA1 gu31 gu32 gu41 gu42 gu43 gu44 gu51 gu52 gu53 gv11 gv21 gv22 gv32 gv41 gv42 gv43 gv44 gv53 gv56 C 2 2 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 6 7 9 10 3 3 4 4 4 4 5 5 5 1 2 2 3 4 4 4 4 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 4 6 6 6 6 6 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 12 6 14 16 3 4 3 4 6 3 5 6 6 1 3 1 3 3 3 5 5 5 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0 0 1 1 1 1 1 1 1 1 1 1 O 5 4 4 5 4 5 6 5 4 4 5 4 4 5 4 6 4 4 4 4 5 4 4 3 4 4 7 5 6 4 3 6 6 4 4 5 7 6 7 8 8 7 8 8 8 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH(OH)(OH)CO(OOH) CH2(OH)CO(OOH) CH3CH(OH)CO(OOH) CH2(OH)CH(OH)CO(OOH) CH2(OH)CH2CO(OOH) CH3C(OH)(OH)CO(OOH) CH2(OH)C(OH)(OH)CO(OOH) CH2(OH)C(OH)(CH3)CO(OOH) CH3C(OH)(CH3)CO(OOH) CH3CH(OH)CH2CO(OOH) CH2(OH)CH(OH)CH2CO(OOH) CH2(OH)CH2CH2CO(OOH) CH3CH2CH(OH)CO(OOH) CH2(OH)CH2CH(OH)CO(OOH) CH2(OH)CH(CH3)CO(OOH) CH2(OH)C(OH)(CH3)CH(OH)CO(OOH) CH3CH(OH)CH2CH2CO(OOH) CH3CH2CH(OH)CH2CO(OOH) CH2(OH)CH(CH3)CH2CO(OOH) CH2(OH)CH2CH(CH3)CO(OOH) CH3CH(OH)CH(OH)CH2CO(OOH) CH3CH(OH)CH(CH3)CO(OOH) CH2(OH)CH(CH3)CH(CH3)CO(OOH) C6H5CO(OOH) apR2C8H13OCO(OOH) apR1C9H15OCO(OOH) Cd(NO2)(OH)=Cd(OH)CO(OOH) CdH(OH)=Cd(OH)CO(OOH) CO(NO2)CdH=CdHCO(OOH) CO(OOH)CdH=CdHCHO CdH2=Cd(CH3)CO(OOH) CO(OOH)Cd(NO2)=CdHCHO CH3COCd(NO2)=CdHCO(OOH) CH3COCdH=CdHCO(OOH) CO(OOH)Cd(CH3)=CdHCHO CO(NO2)(OOH) C(NO2)(OH)(OH)CO(OOH) CO(NO2)CO(OOH) CO(NO2)CH(OH)CO(OOH) CO(NO2)COCH(OH)CO(OOH) CO(NO2)CH(OH)COCO(OOH) CH3COC(NO2)(OH)CO(OOH) CO(NO2)CH(OH)CH(OH)CO(OOH) CH3COC(NO2)(OH)COCO(OOH) CH3COC(NO2)(OH)CH(OH)CO(OOH) Functional Groups | oog | og | og | oog | og | oog | ooog | oog | og | og | oog | og | og | og | og | ooog | go | og | og | og | og | og | og | rg | k gt | k gt | ouogv | ouog | kugv | du g | ug | duvg | kugv | ku g | du g | gv | oogv | kgv | kogv | kkogv | kokgv | kogv | koogv | kokgv | koogv 141 Table A.30 Chemical Codes: h011–hd62. Code h011 h021 h031 h032 h041 h042 h043 h044 h051 h052 h053 h054 h055 h056 h057 h061 h062 h063 h064 h071 hd21 hd31 hd32 hd33 hd34 hd41 hd42 hd43 hd44 hd45 hd46 hd47 hd49 hd50 hd51 hd52 hd53 hd54 hd55 hd56 hd57 hd58 hd5A hd61 hd62 C 1 2 3 3 4 4 4 4 5 5 5 5 5 5 5 6 6 6 6 7 2 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 6 8 8 10 10 10 10 12 12 12 12 12 12 12 14 14 14 6 16 4 4 6 6 6 5 5 6 6 8 8 8 8 8 7 8 7 8 8 8 10 8 10 12 12 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 O 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 4 3 4 3 7 7 5 5 4 3 4 3 4 7 5 7 6 5 5 3 4 3 3 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3(OOH) CH3CH2(OOH) CH3CH(OOH)CH3 CH3CH2CH2(OOH) CH3CH2CH(OOH)CH3 CH3CH2CH2CH2(OOH) CH3C(OOH)(CH3)CH3 CH3CH(CH3)CH2(OOH) C5H11(OOH) CH3CH(CH3)CH(OOH)CH3 CH3CH2CH2CH2CH2(OOH) CH3CH2CH2CH(OOH)CH3 CH3CH2CH(OOH)CH2CH3 CH3CH2CH(CH3)CH2(OOH) CH3CH2C(OOH)(CH3)CH3 C6H13(OOH) CH3CH(CH3)C(OOH)(CH3)CH3 CH3CH(CH3)CH(CH3)CH2(OOH) C6H5(OOH) C7H15(OOH) CH2(OOH)CHO CH2(OOH)COCHO CH3CH(OOH)CHO CH2(OH)CH(OOH)CHO CH2(OOH)CH2CHO CO(NO2)CH(OOH)CH(OH)CHO CO(NO2)CH(OH)CH(OOH)CHO CH2(OOH)COCH(OH)CHO CHOCH(OH)CH(OOH)CHO CH2(OH)C(OOH)(CH3)CHO CH3CH(OOH)CH2CHO CH2(OH)CH(OOH)CH2CHO CH2(OOH)CH(CH3)CHO CHOCH2C(OOH)(CH3)CHO CH3COC(NO2)(OOH)CH(OH)CHO CH3COCH(OOH)CH(OH)CHO CH3COC(OH)(NO2)CH(OOH)CHO CH2(OOH)COCH(OH)CH(OH)CHO CH3COCH(OH)CH(OOH)CHO CHOCH(OH)C(OOH)(CH3)CHO CH3CH2CH(OOH)CH2CHO CH3COCH(OOH)CH2CHO CH3CH(OOH)CH(CH3)CHO CH3C(OOH)(CH3)CH(CH3)CHO CH2(OH)C(OOH)(CH3)CH(CH3)CHO Functional Groups |h |h |h |h |h |h |h |h | hz |h |h |h |h |h |h | hz |h |h | hr | hz | dh | dkh | hd | ohd | dh | khodv | kohdv | hkod | dohd | ohd | hd | ohd | dh | dhd | dohkv | khod | dhokv | hkood | kohd | dohd | hd | khd | dh | hd | hdo 142 Table A.31 Chemical Codes: hh51–hnA1. Code hh51 hh53 hh54 hh71 hk31 hk33 hk40 hk41 hk42 hk43 hk44 hk45 hk46 hk47 hk4B hk4C hk4D hk51 hk52 hk71 hn11 hn21 hn23 hn31 hn32 hn33 hn34 hn41 hn42 hn43 hn44 hn45 hn46 hn47 hn48 hn51 hn52 hn53 hn54 hn55 hn56 hn57 hn58 hn59 hnA1 C 5 5 5 7 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 7 1 2 2 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 10 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 12 11 11 14 6 6 8 8 8 6 8 8 8 8 8 8 8 10 10 14 3 5 5 7 4 7 7 7 9 7 9 6 7 7 6 10 10 11 11 9 9 9 11 11 17 N 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 2 1 1 1 1 1 1 2 1 1 2 2 2 1 1 1 1 1 1 1 1 O 6 8 8 6 4 3 4 3 3 4 4 4 3 4 4 5 5 5 5 5 5 5 5 5 9 5 6 6 5 6 5 9 7 8 10 9 9 7 7 5 5 7 7 7 5 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)C(OOH)(CH3)CH(OOH)CH2(OH) CH2(OH)CH(OOH)C(OOH)(CH3)CH2(ONO2) CH2(OH)C(OOH)(CH3)CH(OOH)CH2(ONO2) CH3COC(OOH)(CH2(OOH))C(OH)(CH3)CH3 CH2(OH)COCH2(OOH) CH3COCH2(OOH) CH3COCH(OH)CH2(OOH) CH3COCH(OOH)CH3 CH3CH2COCH2(OOH) CH3COCOCH2(OOH) CH3COCH(OOH)CH2(OH) CH2(OH)COCH2CH2(OOH) CH3COCH2CH2(OOH) CH2(OH)CH2COCH2(OOH) CH3CH(OH)COCH2(OOH) CH2(OH)COCH(OH)CH2(OOH) CH2(OH)CH(OH)COCH2(OOH) CH2(OH)COC(OOH)(CH3)CH2(OH) CH2(OH)C(OH)(CH3)COCH2(OOH) CH3COC(OH)(CH2(OOH))C(OH)(CH3)CH3 CH2(ONO2)(OOH) CH2(ONO2)CH2(OOH) CH3CH(ONO2)(OOH) CH3CH(OOH)CH2(ONO2) CO(NO2)CH(OH)CH(ONO2)(OOH) CH3CH(ONO2)CH2(OOH) CH2(OH)CH(ONO2)CH2(OOH) CH2(ONO2)C(OOH)(CH3)CHO CH3C(OOH)(CH3)CH2(ONO2) CH3COCH(OOH)CH2(ONO2) CH3CH(ONO2)CH(OOH)CH3 CH3COC(NO2)(OH)CH(ONO2)(OOH) CH3COCH(OH)CH(ONO2)(OOH) CH(ONO2)(OH)CH(OH)COCH2(OOH) CH(ONO2)(OH)C(OH)(NO2)COCH2(OOH) CH2(OH)CH(ONO2)C(OOH)(CH3)CH2(ONO2) CH2(OH)C(ONO2)(CH3)CH(OOH)CH2(ONO2) CH2(OH)CH(ONO2)C(OOH)(CH3)CH2(OH) CH2(OH)C(ONO2)(CH3)CH(OOH)CH2(OH) CdH2=CdHC(OOH)(CH3)CH2(ONO2) CdH2=Cd(CH3)CH(OOH)CH2(ONO2) CH2(ONO2)C(OOH)(CH3)COCH2(OH) CH2(OH)CH(OH)C(OOH)(CH3)CH2(ONO2) CH2(OH)C(OH)(CH3)CH(OOH)CH2(ONO2) C9H12CH3(ONO2),H(OOH) Functional Groups | ohho | nhho | ohhn | khho | okh | kh | koh | kh | kh | kkh | kho | okh | kh | okh | okh | okoh | ookh | hko o | ookh | khoo | nh | hn | nh | hn | vkonh | nh | onh | nhd | hn | khn | hn | kvonh | konh | hkono | noovkh | nhno | onhn | ohnn | onhn | nhu | uhn | nhko | nhoo | oohn | thn 143 Table A.32 Chemical Codes: ho11–hr62. Code ho11 ho21 ho22 ho31 ho32 ho33 ho34 ho35 ho40 ho41 ho42 ho43 ho45 ho46 ho4A ho4B ho4C ho4D ho4E ho4F ho50 ho51 ho52 ho53 ho54 ho56 ho57 ho58 ho59 ho5A ho5B ho5C ho5D ho61 ho62 ho63 ho64 ho71 hr61 hr62 C 1 2 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 7 6 6 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 6 6 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10 12 12 12 12 12 12 12 12 12 12 12 12 12 14 14 14 14 16 8 8 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 3 3 3 4 4 3 3 3 3 3 3 3 3 3 3 4 3 4 4 4 4 3 3 4 4 3 3 3 3 5 5 3 5 4 3 5 3 3 4 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OOH)(OH) CH3CH(OH)(OOH) CH2(OH)CH2(OOH) CH2(OH)CH(OH)CH2(OOH) CH2(OH)CH(OOH)CH2(OH) CH2(OH)CH2CH2(OOH) CH3CH(OOH)CH2(OH) CH3CH(OH)CH2(OOH) CH3CH2CH(OH)CH2(OOH) CH2(OH)CH2CH2CH2(OOH) CH3CH(OH)CH(OOH)CH3 CH3C(OOH)(CH3)CH2(OH) CH3C(OH)(CH3)CH2(OOH) CH3CH(OH)CH2CH2(OOH) CH2(OH)CH(CH3)CH2(OOH) CH2(OH)CH(OH)CH2CH2(OOH) CH2(OH)CH2CH(OOH)CH3 CH2(OH)CH2CH(OH)CH2(OOH) CH2(OH)C(OH)(CH3)CH2(OOH) CH3CH(OH)CH(OH)CH2(OOH) CH2(OH)CH2CH(OH)CH(OOH)CH3 CH2(OH)CH(CH3)CH(OOH)CH3 C5H10(OH)(OOH) CH2(OH)CH(CH3)CH(OOH)CH2(OH) CH3CH2CH2CH(OOH)CH(OH)(OH) CH2(OH)CH2CH2CH(OOH)CH3 CH3CH(OH)CH2CH2CH2(OOH) CH3CH2CH(OH)CH2CH2(OOH) CH2(OH)CH(CH3)CH2CH2(OOH) CH2(OH)CH(OH)C(OOH)(CH3)CH2(OH) CH2(OH)C(OH)(CH3)CH(OOH)CH2(OH) CH3CH(OH)CH(CH3)CH2(OOH) CH2(OH)C(OH)(CH3)CH(OH)CH2(OOH) CH2(OH)CH(CH3)CH(CH2(OH))CH2(OOH) C6H12(OH)(OOH) CH2(OH)CH(CH2(OH))CH(CH2(OH))CH2(OOH) CH2(OH)CH(CH3)CH(CH3)CH2(OOH) C7H14(OH)(OOH) C6H4(OH)(OH),(H)(OOH) C6H4(H)(OH),(H)(OOH) Functional Groups | ho | oh | oh | ooh | oho | oh | ho | oh | oh | ho | oh | ho | oh | oh | oh | hoo | ho | ooh | ooh | ooh | hoo | oh | ohz | oho | hoo | ho | ho | oh | oh | ohoo | ooho | oh | oooh | hoo | ohz | ohoo | ho | ohz | rooh | hro 144 Table A.33 Chemical Codes: hr71–ko48. Code hr71 hr72 hr73 hr74 hr75 hr81 hr82 ht71 ht81 ht82 ht83 ht91 htA1 hu51 hu52 hu71 hv32 k031 k041 k051 k052 k053 k061 k062 k071 k081 kk42 kk43 kk51 ko31 ko34 ko35 ko37 ko41 ko42 ko43 ko45 ko46 ko47 ko48 C 7 7 7 7 7 8 8 7 8 8 8 9 10 5 5 7 3 3 4 5 5 5 6 6 7 8 4 4 5 3 3 3 3 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 9 9 10 10 8 12 12 12 18 18 14 16 18 10 10 12 3 6 8 10 10 10 12 12 14 16 6 6 8 6 6 6 6 8 8 8 8 8 8 8 N 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 6 5 3 4 2 3 4 4 2 3 3 3 3 3 3 3 6 1 1 1 1 1 1 1 1 1 3 2 3 3 3 4 2 2 2 3 2 3 4 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula C6H2CH3,(OH)(OH),NO2,,(H)(OOH) C6H2CH3,(H)(OH),(H)(OOH),,NO2 C6H3CH3,(H)OH,(H)OOH C6H3CH3,(OH)OH,(H)OOH C6H5CH2(OOH) C6H2CH3,(H)OH,CH3,(H)OOH C6H2CH3,(OH)OH,CH3,(H)OOH CH3CO’C(OOH)’CH2’O’C(CH3)CH3 C8H17(OOH) C8H16(OH)(OOH) apR2C8H13O(OOH) apR1C9H15O(OOH) C9H12CH3,OOH,HOH CdH2=CdHC(OOH)(CH3)CH2(OH) CdH2=Cd(CH3)CH(OOH)CH2(OH) CH3COCd(CH2(OOH))=Cd(CH3)CH3 CO(NO2)COCH2(OOH) CH3COCH3 CH3CH2COCH3 CH3CH2CH2COCH3 CH3CH2COCH2CH3 CH3CH(CH3)COCH3 CH3CH2CH2CH2COCH3 C5H12CO C6H14CO C7H16CO CH2(OH)COCOCH3 CH3COCOCH3 CH2(OH)CH2COCOCH3 CH2(OH)COCH2(OH) CH(OH)(OH)COCH3 CH2(OH)COCH(OH)(OH) CH3COCH2(OH) CH2(OH)COCH2CH3 CH3CH(OH)COCH3 CH2(OH)CH2COCH2(OH) CH2(OH)CH2COCH3 CH2(OH)CH(OH)COCH3 CH2(OH)COCH(OH)CH2(OH) CH3CH(OH)COCH2(OH) Functional Groups | rooh | roh | roh | rooh | rh | roh | rooh | hkt | htz | ohtz | k ht | k ht | th | ohu | uho | khu | kkhv |k |k |k |k |k |k | kz | kz | kz | kko | kk | kko | oko | koo | okoo | ko | ko | ok | oko | ko | koo | okoo | oko 145 Table A.34 Chemical Codes: ko50–1v02. Code ko50 ko51 ko52 ko53 ko54 ko55 ko56 ko61 ko71 l011 l012 l013 l023 la11 ld11 ld12 ld21 ld41 lh01 lh11 lh21 lh22 lh31 lh41 lh42 lk21 lk31 lk41 ln01 lo11 lo13 lo21 lo22 lo31 lo41 lo42 lo43 lu23 lu24 lv01 lv02 C 5 5 5 5 5 5 5 6 7 1 1 1 2 1 1 1 2 4 0 1 2 2 3 4 4 2 3 4 0 1 1 2 2 3 4 4 4 2 2 0 0 X 0 0 0 0 0 0 0 0 0 1 2 3 3 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 3 4 1 1 H 10 10 10 10 10 10 10 12 14 3 2 1 3 1 1 0 3 7 0 3 5 5 7 9 9 3 5 7 0 3 1 5 5 7 9 9 9 1 0 0 0 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 O 3 3 2 2 4 3 2 2 2 0 0 0 0 2 1 1 1 2 2 2 2 2 2 2 2 1 1 1 3 1 1 1 1 1 1 1 2 0 0 2 2 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)CH2CH(OH)COCH3 CH2(OH)CH(CH3)COCH2(OH) CH2(OH)CH2CH2COCH3 CH2(OH)CH(CH3)COCH3 CH2(OH)C(OH)(CH3)COCH2(OH) CH3CH2CH2COCH(OH)(OH) C4H9(OH)CO CH2(OH)CH2CH2COCH2CH3 C6H13(OH)CO CH3(Cl) CH2(Cl2) CH(Cl3) CH3C(Cl3) CO(OH)(Cl) CHO(Cl) CO(Cl2) CH2(Cl)CHO CH3CH(OH)CH(Cl)CHO Cl2O2 CH2(Cl)(OOH) CH2(Cl)CH2(OOH) CH3CH(Cl)(OOH) C3H6(OOH)(Cl) CH3CH(Cl)CH(OOH)CH3 CH3C(OOH)(CH3)CH2(Cl) CH3CO(Cl) CH2(Cl)COCH3 CH3CH(Cl)COCH3 ClONO2 CH2(Cl)(OH) C(Cl3)(OH) CH2(OH)CH2(Cl) CH3CH(Cl)(OH) CH3CH(OH)CH2(Cl) CH3CH(OH)CH(Cl)CH3 CH3C(OH)(CH3)CH2(Cl) CH3CH(OH)CH(Cl)CH2(OH) CdH(Cl)=Cd(Cl2) Cd(Cl2)=Cd(Cl2) ClNO2 ClONO Functional Groups | koo | ook | ko | ok | ooko | koo | okz | ko | okz |l |l |l |l | al | dl | ld | dl | dlo | hl | hl | hl | hl | hlz | hl | hl | kl | kl | kl | ln | lo | lo | lo | lo | lo | lo | lo | olo | ul | ul | lv | lv 146 Table A.35 Chemical Codes: m011–n081. Code m011 m021 m022 m031 md11 md21 md31 mk21 mo01 mo11 mo12 mo21 mo22 mo23 mo31 mu11 mu21 mv11 mv21 mv22 mw11 mw21 mw22 n011 n012 n021 n031 n032 n041 n042 n043 n051 n052 n053 n054 n055 n056 n057 n061 n062 n063 n071 n081 C 1 2 2 3 1 2 3 2 0 1 1 2 2 2 3 1 2 1 2 2 1 2 2 1 1 2 3 3 4 4 4 5 5 5 5 5 5 5 6 6 6 7 8 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 5 7 7 9 3 5 7 5 3 5 5 7 7 7 9 3 5 4 6 6 4 6 6 3 3 5 7 7 9 9 9 11 11 11 11 11 11 11 13 13 13 15 17 N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 O 0 0 0 0 1 1 1 1 1 1 2 1 1 2 1 0 0 2 2 2 1 1 1 3 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3(NH2) CH2(NH2)CH3 CH3(NH)CH3 CH3NCH3CH3 CHO(NH2) CH3(NH)CHO CH3CHONCH3 CH3CO(NH2) NH2OH CH2(OH)(NH2) CH2(OH)(NH)(OH) CH3CH(OH)(NH2) CH3(NH)CH2(OH) CH2(OH)N(OH)CH3 CH2(OH)N(CH3)CH3 CdH2=NH CdH2=NCH3 CH3(NHNO2) CH3CH2(NHNO2) CH3NNO2CH3 CH3(NH)N=O CH2(NH)N=OCH3 CH3CH3NN=O CH3(ONO2) CH3(O2NO2) CH3CH2(ONO2) CH3CH2CH2(ONO2) CH3CH(ONO2)CH3 CH3CH2CH2CH2(ONO2) CH3CH2CH(ONO2)CH3 CH3C(ONO2)(CH3)CH3 C5H11(ONO2) CH3CH(CH3)CH(ONO2)CH3 CH3CH2CH2CH2CH2(ONO2) CH3CH2CH2CH(ONO2)CH3 CH3CH2CH(ONO2)CH2CH3 CH3CH2CH(CH3)CH2(ONO2) CH3CH2C(ONO2)(CH3)CH3 C6H13(ONO2) CH3CH(CH3)C(ONO2)(CH3)CH3 CH3CH(CH3)CH(CH3)CH2(ONO2) C7H15(ONO2) C8H17(ONO2) Functional Groups |m |m |m |m | dm | md | dm | km | mo | om | omo | om | mo | omo | om | mu | mu | vm | vm | vm | wm | wm | wm |n |n |n |n |n |n |n |n | nz |n |n |n |n |n |n | nz |n |n | nz | nz 147 Table A.36 Chemical Codes: nd11–nd81. Code nd11 nd21 nd22 nd23 nd31 nd32 nd33 nd34 nd35 nd36 nd37 nd38 nd40 nd41 nd42 nd43 nd44 nd45 nd46 nd47 nd48 nd49 nd4A nd4B nd4C nd4D nd4E nd50 nd51 nd52 nd53 nd54 nd55 nd56 nd57 nd58 nd5A nd5B nd5C nd61 nd62 nd81 C 1 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 5 4 5 5 5 5 5 5 5 5 5 5 5 5 6 6 8 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 1 3 3 1 2 3 3 5 5 3 5 5 7 4 4 5 4 5 5 7 7 7 4 5 7 7 5 7 6 7 6 7 7 7 7 9 9 7 9 11 11 13 N 1 1 1 1 2 1 1 1 1 1 1 1 1 2 2 1 2 1 1 1 1 1 2 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 O 4 4 5 5 7 5 5 5 4 6 5 4 4 8 7 5 8 6 6 5 4 5 9 7 5 6 6 6 8 6 8 7 5 6 6 4 4 6 6 4 5 5 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CHO(ONO2) CH2(ONO2)CHO CH(OH)(ONO2)CHO CO(ONO2)CHO CO(NO2)CH(ONO2)CHO CHOCH(ONO2)CHO CH2(ONO2)COCHO CH2(OH)CH(ONO2)CHO CH3CH(ONO2)CHO CH(OH)(ONO2)COCHO CH3C(OH)(ONO2)CHO CH2(ONO2)CH2CHO CH2(ONO2)CH(CH3)CHO CO(NO2)CH(ONO2)CH(OH)CHO CH3COC(ONO2)(NO2)CHO CH3COCH(ONO2)CHO CO(NO2)CH(OH)CH(ONO2)CHO CHOCH(OH)CH(ONO2)CHO CH2(ONO2)COCH(OH)CHO CH2(OH)C(CH3)(ONO2)CHO CH3CH(ONO2)CH2CHO CH2(OH)CH(ONO2)CH2CHO CH(OH)(ONO2)C(OH)(NO2)COCHO CH(OH)(ONO2)CH(OH)COCHO CH2(ONO2)C(OH)(CH3)CHO CH2(ONO2)CH(OH)COCH2CHO CH2(ONO2)CH(OH)COCHO CHOCH2C(O2NO2)(CH3)CHO CH3COC(NO2)(ONO2)CH(OH)CHO CH3COCH(ONO2)CH(OH)CHO CH3COC(OH)(NO2)CH(ONO2)CHO CH2(ONO2)COCH(OH)CH(OH)CHO CH3COCH(ONO2)CH2CHO CH3COCH(OH)CH(ONO2)CHO CHOCH(OH)C(ONO2)(CH3)CHO CH3CH2CH(ONO2)CH2CHO CH3CH(ONO2)CH(CH3)CHO CH2(OH)C(ONO2)(CH3)COCHO CH2(ONO2)CH(OH)C(OH)(CH3)CHO CH3C(ONO2)(CH3)CH(CH3)CHO CH2(OH)C(ONO2)(CH3)CH(CH3)CHO CH3C(ONO2)(CH3)CH(COCH3)CH2CHO Functional Groups | nd | nd | ond | dkn | kndv | dnd | nkd | ond | dn | onkd | ond | dn | dn | knodv | kndv | knd | kondv | ddon | nkod | ond | nd | ond | dkovon | dkoon | nod | dkon | dkon | dnd | donkv | knod | dnokv | nkood | knd | kond | dond | nd | dn | onkd | nood | nd | ndo | kdn 148 Table A.37 Chemical Codes: nk23–no46. Code nk23 nk31 nk33 nk34 nk36 nk38 nk40 nk42 nk43 nk45 nk46 nk47 nk48 nk49 nk4A nk4B nk4C nk4F nk4G nk4I nk4J nk51 nn31 nn41 nn42 nn43 nn44 nn51 nn52 nn53 nnA1 no11 no21 no23 no31 no32 no33 no34 no35 no40 no42 no43 no44 no45 no46 C 2 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 3 4 4 4 4 5 5 5 10 1 2 2 3 3 3 3 3 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 5 5 5 3 5 7 5 7 7 7 5 7 7 7 7 7 5 7 7 7 9 6 8 8 6 6 8 8 10 16 3 5 5 7 7 7 7 7 9 9 9 9 9 9 N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 O 4 5 5 6 5 4 5 7 4 4 5 5 5 4 5 5 6 6 6 7 6 6 6 6 6 7 7 6 6 8 6 4 4 4 5 5 4 4 4 4 4 4 4 4 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3CO(ONO2) CH2(OH)COCH2(ONO2) CH3COCH(OH)(ONO2) CH2(OH)COCH(OH)(ONO2) CH3COCO(ONO2) CH3COCH2(ONO2) CH2(OH)CH2COCH2(ONO2) CH2(OH)COCH(OH)CO(ONO2) CH3CH2COCH2(ONO2) CH3COCH(ONO2)CH3 CH3COCH(ONO2)CH2(OH) CH3COCOCH2(ONO2) CH2(OH)COCH2CH2(ONO2) CH3COCH2CH2(ONO2) CH3COCH(OH)CH2(ONO2) CH3CH(OH)COCH2(ONO2) CH2(OH)COCH(OH)CH2(ONO2) CH3COCH(OH)CO(ONO2) CH3COCH(OH)CH(OH)(ONO2) CH2(OH)COCH(OH)CH(OH)(ONO2) CH2(OH)CH(OH)COCH2(ONO2) CH2(OH)COC(ONO2)(CH3)CH2(OH) CH3CH(ONO2)CH2(ONO2) CH3CH(ONO2)CH(ONO2)CH3 CH3C(ONO2)(CH3)CH2(ONO2) CH2(ONO2)C(ONO2)(CH3)CHO CH3COCH(ONO2)CH2(ONO2) CdH2=CdHC(ONO2)(CH3)CH2(ONO2) CdH2=Cd(CH3)CH(ONO2)CH2(ONO2) CH2(OH)CH(ONO2)C(ONO2)(CH3)CH2(OH) C9H12CH3(ONO2),H(ONO2) CH2(ONO2)(OH) CH2(OH)CH2(ONO2) CH3CH(OH)(ONO2) CH2(OH)CH(OH)CH2(ONO2) CH2(OH)CH(ONO2)CH2(OH) CH3CH(OH)CH2(ONO2) CH3CH(ONO2)CH2(OH) CH2(OH)CH2CH2(ONO2) CH3CH2CH(OH)CH2(ONO2) CH2(OH)CH2CH2CH2(ONO2) CH3CH(OH)CH(ONO2)CH3 CH3C(ONO2)(CH3)CH2(OH) CH3C(OH)(CH3)CH2(ONO2) CH3CH(OH)CH2CH2(ONO2) Functional Groups | kn | nko | kon | okon | kkn | kn | okn | okono | kn | kn | kno | kk n | okn | kn | kon | okn | okon | kokn | koon | okoon | ookn | onko | nn | nn | nn | nnd | knn | nnu | unn | onno | tnn | no | on | on | oon | ono | on | no | on | on | no | on | no | on | on 149 Table A.38 Chemical Codes: no4A–nu55. Code no4A no4B no4C no4D no4E no4F no50 no51 no52 no53 no54 no56 no57 no58 no59 no5A no5B no5C no5D no61 no62 no63 no64 no71 no81 nr61 nr71 nr72 nr73 nr74 nr75 nt71 nt81 nt91 ntA1 ntA2 nu51 nu52 nu53 nu54 nu55 C 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 7 8 6 7 7 7 7 7 7 8 9 10 10 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 9 9 9 9 9 9 11 11 11 11 11 11 11 11 11 11 11 11 11 13 13 13 13 15 17 5 9 9 8 8 7 11 13 15 17 17 9 9 7 9 9 N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 O 4 5 4 5 5 5 5 5 4 4 5 4 4 4 4 4 6 6 6 4 4 5 6 4 4 3 4 5 7 6 3 5 4 4 4 4 4 4 4 4 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH2(OH)CH(CH3)CH2(ONO2) CH2(OH)CH(OH)CH2CH2(ONO2) CH2(OH)CH2CH(ONO2)CH3 CH2(OH)CH2CH(OH)CH2(ONO2) CH2(OH)C(OH)(CH3)CH2(ONO2) CH3CH(OH)CH(OH)CH2(ONO2) CH2(OH)CH2CH(OH)CH(ONO2)CH3 CH2(OH)CH(CH3)CH(ONO2)CH2(OH) C5H10(OH)(ONO2) CH2(OH)CH(CH3)CH(ONO2)CH3 CH3CH2CH2CH(ONO2)CH(OH)(OH) CH2(OH)CH2CH2CH(ONO2)CH3 CH3CH(OH)CH2CH2CH2(ONO2) CH3CH2CH(OH)CH2CH2(ONO2) CH2(OH)CH(CH3)CH2CH2(ONO2) CH3CH(OH)CH(CH3)CH2(ONO2) CH2(OH)CH(OH)C(ONO2)(CH3)CH2(OH) CH2(OH)C(OH)(CH3)CH(ONO2)CH2(OH) CH2(OH)C(OH)(CH3)CH(OH)CH2(ONO2) C6H12(OH)(ONO2) CH2(OH)CH(CH3)CH(CH3)CH2(ONO2) CH2(OH)CH(CH3)CH(ONO2)CH2CH2(OH) CH2(OH)CH(CH2(OH))CH(CH2(OH))CH2(ONO2) C7H14(OH)(ONO2) C8H16(OH)(ONO2) C6H5,ONO2 C6H3CH3,(H)(OH),(H)(ONO2) C6H3CH3,(OH)(OH),(H)(ONO2) C6H2CH3,(OH)(OH),NO2,(H)(ONO2) C6H2CH3,(H)(OH),(H)(ONO2),,NO2 C6H5CH2(ONO2) CH3CO’C(ONO2)’CH2’O’C(CH3)CH3 apR2C8H13O(ONO2) apR1C9H15O(ONO2) C9H12CH3,(ONO2),HOH C9H12CH3(OH),H(ONO2) CdH2=CdHC(ONO2)(CH3)CH2(OH) CdH2=Cd(CH3)CH(ONO2)CH2(OH) CdH2=Cd(CH3)COCH2(ONO2) CdH2=CdHC(OH)(CH3)CH2(ONO2) CdH2=Cd(CH3)CH(OH)CH2(ONO2) Functional Groups | on | noo | no | oon | oon | oon | noo | ono | onz | on | noo | no | no | on | on | on | oono | oono | ooon | onz | no | ono | ooon | onz | onz | rn | rno | roon | roon | ron | rn | knt | k nt | k nt | ton | ton | onu | uno | uk n | nou | uon 150 Table A.39 Chemical Codes: nv32–oo49. Code nv32 nv35 nv39 nv41 nv4D nv4E nv4H o011 o021 o031 o032 o041 o042 o043 o044 o052 o053 o054 o055 o056 o057 o061 o062 o063 o071 o081 oo11 oo21 oo31 oo32 oo33 oo41 oo42 oo43 oo44 oo45 oo46 oo47 oo48 oo49 C 3 3 3 4 4 4 4 1 2 3 3 4 4 4 4 5 5 5 5 5 5 6 6 6 7 8 1 2 3 3 3 4 4 4 4 4 4 4 4 4 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 4 2 4 4 4 6 6 4 6 8 8 10 10 10 10 12 12 12 12 12 12 14 14 14 16 18 4 6 8 8 8 10 10 10 10 10 10 10 10 10 N 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 7 8 8 9 8 8 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 3 2 2 2 2 2 2 3 2 3 3 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3C(OH)(ONO2)CO(NO2) CO(NO2)CH(OH)CO(ONO2) CO(NO2)CH(OH)CH(OH)(ONO2) CH2(OH)COC(NO2)(OH)CO(ONO2) CH3COC(NO2)(OH)CO(ONO2) CH3COC(NO2)(OH)CH(OH)(ONO2) CH2(OH)COC(OH)(NO2)CH(OH)(ONO2) CH3(OH) CH3CH2(OH) CH3CH2CH2(OH) CH3CH(OH)CH3 CH3CH2CH(OH)CH3 CH3CH2CH2CH2(OH) CH3C(OH)(CH3)CH3 CH3CH(CH3)CH2(OH) CH3CH(CH3)CH(OH)CH3 CH3CH2CH2CH2CH2(OH) CH3CH2CH2CH(OH)CH3 CH3CH2CH(OH)CH2CH3 CH3CH2CH(CH3)CH2(OH) CH3C(OH)(CH3)CH2CH3 C6H13(OH) CH3CH(CH3)C(OH)(CH3)CH3 CH3CH(CH3)CH(CH3)CH2(OH) C7H15(OH) C8H17(OH) CH2(OH)(OH) CH2(OH)CH2(OH) CH3CH(OH)CH2(OH) CH2(OH)CH(OH)CH2(OH) CH2(OH)CH2CH2(OH) CH3CH2CH(OH)CH2(OH) CH2(OH)CH2CH2CH2(OH) CH3C(OH)(CH3)CH2(OH) CH3CH(OH)CH2CH2(OH) CH2(OH)CH(CH3)CH2(OH) CH2(OH)CH2CH(OH)CH2(OH) CH3CH(OH)CH(OH)CH3 CH2(OH)C(OH)(CH3)CH2(OH) CH3CH(OH)CH(OH)CH2(OH) Functional Groups | onkv | koknv | voon | okonov | kvokn | kvoon | okovon |o |o |o |o |o |o |o |o |o |o |o |o |o |o | oz |o |o | oz | oz | oo | oo | oo | ooo | oo | oo | oo | oo | oo | oo | ooo | oo | ooo | ooo 151 Table A.40 Chemical Codes: oo51–pd56. Code oo51 oo52 oo53 oo54 oo55 oo57 oo58 oo59 oo61 oo62 oo63 oo64 oo65 oo71 oo81 p021 p031 p041 p042 p051 p052 p053 p061 pa31 pa32 pa33 pd21 pd31 pd32 pd33 pd41 pd42 pd43 pd44 pd45 pd46 pd47 pd48 pd51 pd52 pd53 pd54 pd55 pd56 C 5 5 5 5 5 5 5 5 6 6 6 6 6 7 8 2 3 4 4 5 5 5 6 3 3 3 2 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 12 12 12 12 12 12 12 12 14 14 14 14 14 16 18 3 5 7 7 9 9 9 11 3 3 3 1 2 3 3 2 4 3 3 5 3 3 5 3 3 5 5 7 7 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 O 2 2 3 2 3 3 2 4 2 2 3 4 2 2 2 5 5 5 5 5 5 5 5 8 7 9 6 9 7 6 10 10 8 8 8 7 7 6 9 9 9 9 6 6 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH3CH(OH)CH2CH2CH2(OH) CH2(OH)CH(CH3)CH2CH2(OH) CH3CH(OH)CH(OH)CH2CH2(OH) CH3CH(OH)CH(CH3)CH2(OH) CH2(OH)CH(CH3)CH(OH)CH2(OH) CH3CH2CH2CH(OH)CH(OH)(OH) CH3CH2CH(OH)CH2CH2(OH) CH2(OH)CH(OH)C(OH)(CH3)CH2(OH) C6H12(OH)(OH) CH2(OH)CH(CH3)CH(CH3)CH2(OH) CH2(OH)CH(CH2(OH))CH(CH3)CH2(OH) CH2(OH)CH(CH2(OH))CH(CH2(OH))CH2(OH) CH3C(OH)(CH3)CH(CH3)CH2(OH) C7H14(OH)(OH) C8H16(OH)(OH) CH3CO(OONO2) CH3CH2CO(OONO2) CH3CH(CH3)CO(OONO2) CH3CH2CH2CO(OONO2) CH3CH2CH2CH2CO(OONO2) CH3CH2CH(CH3)CO(OONO2) CH3CH(CH3)CH2CO(OONO2) CH3CH(CH3)CH(CH3)CO(OONO2) CO(OH)CH(OH)CO(OONO2) CO(OH)CH2CO(OONO2) CO(OH)C(OH)(OH)CO(OONO2) CO(OONO2)CHO CO(OONO2)C(NO2)(OH)CHO CO(OONO2)CH(OH)CHO CO(OONO2)CH2CHO CO(OONO2)C(NO2)(OH)COCHO CO(OONO2)C(NO2)(OH)CH(OH)CHO CO(OONO2)COCH(OH)CHO CO(OONO2)CH(OH)COCHO CO(OONO2)CH(OH)CH(OH)CHO CO(OONO2)CH2COCHO CO(OONO2)COCH2CHO CO(OONO2)CH(CH3)CHO CO(OONO2)COCH(OH)COCHO CO(OONO2)CH(OH)COCOCHO CO(OONO2)CH(OH)CH(OH)COCHO CO(OONO2)COCH(OH)CH(OH)CHO CO(OONO2)CH2CH(CH3)CHO CO(OONO2)CH(CH3)CH2CHO Functional Groups | oo | oo | ooo | oo | ooo | ooo | oo | oooo | ooz | oo | ooo | oooo | oo | ooz | ooz |p |p |p |p |p |p |p |p | aop | ap | aoop | dp | dopv | dop | dp | dkopv | doopv | dokp | dkop | doop | dkp | dkp | dp | dkokp | dkkop | dkoop | dookp | dp | dp 152 Table A.41 Chemical Codes: pg21–pn55. Code pg21 pg40 ph21 ph30 ph31 ph40 pk31 pk33 pk40 pk45 pk46 pk47 pk48 pk49 pk4A pk50 pk51 pk52 pk54 pk55 pk57 pk58 pk59 pk5A pk5B pk5C pn21 pn30 pn31 pn32 pn34 pn40 pn41 pn42 pn43 pn44 pn47 pn48 pn49 pn51 pn52 pn53 pn54 pn55 C 2 4 2 3 3 4 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 2 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 1 5 3 5 5 7 3 3 5 5 5 5 5 5 5 7 5 5 5 5 7 7 5 7 7 7 2 4 1 2 4 6 3 3 4 3 6 6 4 5 6 5 6 6 N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 2 2 2 3 3 2 3 2 2 2 3 2 3 2 2 O 8 10 7 7 7 7 7 6 7 7 8 7 7 6 8 7 8 9 8 9 8 9 7 6 7 6 8 8 11 9 8 9 12 11 9 12 8 10 10 12 10 12 10 11 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CO(OOH)CO(OONO2) CO(OOH)C(OOH)(CH3)CO(OONO2) CH2(OOH)CO(OONO2) CH2(OOH)CH2CO(OONO2) CH3CH(OOH)CO(OONO2) CH2(OH)C(OOH)(CH3)CO(ONO2) CH2(OH)COCO(OONO2) CH3COCO(OONO2) CH3CH(OH)COCO(OONO2) CH3COCH(OH)CO(OONO2) CH2(OH)COCH(OH)CO(OONO2) CH2(OH)COCH2CO(OONO2) CH2(OH)CH2COCO(OONO2) CH3COCH2CO(OONO2) CH2(OH)CH(OH)COCO(OONO2) CH3COCH(OH)CH2CO(OONO2) CH3COCOCH(OH)CO(OONO2) CH2(OH)COCOCH(OH)CO(OONO2) CH3COCH(OH)COCO(OONO2) CH2(OH)COCH(OH)COCO(OONO2) CH3COCH(OH)CH(OH)CO(OONO2) CH2(OH)COCH(OH)CH(OH)CO(OONO2) CH3COCOCH2CO(OONO2) CH3COCH2CH2CO(OONO2) CH3CH(OH)COCH2CO(OONO2) CH3COCH(CH3)CO(OONO2) CH2(ONO2)CO(OONO2) CH2(ONO2)CH2CO(OONO2) CO(NO2)CH(ONO2)CO(OONO2) CH2(ONO2)COCO(OONO2) CH3CH(ONO2)CO(OONO2) CH2(OH)C(ONO2)(CH3)CO(OONO2) CO(NO2)CH(ONO2)CH(OH)CO(OONO2) CH3COC(NO2)(ONO2)CO(OONO2) CH3COCH(ONO2)CO(OONO2) CO(NO2)CH(OH)CH(ONO2)CO(OONO2) CH3CH(ONO2)CH2CO(OONO2) CH2(OH)CH(ONO2)CH(OH)CO(OONO2) CH2(ONO2)COCH(OH)CO(OONO2) CH3COC(NO2)(ONO2)CH(OH)CO(OONO2) CH3COCH(ONO2)CH(OH)CO(OONO2) CH3COC(NO2)(OH)CH(ONO2)CO(OONO2) CH3COCH(OH)CH(ONO2)CO(OONO2) CH2(ONO2)COCH(OH)CH(OH)CO(OONO2) Functional Groups | pg | ghp | ph | ph | ph | ohp | okp | kp | okp | kop | okop | okp | okp | kp | ookp | kop | kkop | okkop | kokp | okokp | koop | okoop | kk p | kp | okp | kp | np | np | vknp | nkp | np | onp | vknop | kvnp | knp | vkonp | np | onp | nkop | kvnop | knop | kvonp | konp | nkoop 153 Table A.42 Chemical Codes: po22–pv56. Code po22 po23 po31 po32 po33 po34 po35 po41 po42 po43 po44 po45 po46 po47 po50 po51 po52 po53 po54 po55 po56 po61 pr71 pt91 ptA1 pu31 pu32 pu41 pu42 pu43 pu44 pu51 pu52 pu53 pv21 pv22 pv32 pv41 pv42 pv43 pv44 pv53 pv56 C 2 2 3 3 3 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 6 7 9 10 3 3 4 4 4 4 5 5 5 2 2 3 4 4 4 4 5 5 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 3 3 5 5 5 5 5 7 7 7 7 7 7 7 9 9 9 9 9 9 9 11 5 13 15 2 3 2 3 2 5 4 5 5 2 0 2 2 2 4 4 4 6 N 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 1 1 2 2 2 2 2 2 2 2 2 O 7 6 6 7 7 8 6 6 6 6 7 6 7 6 8 6 6 6 6 7 6 6 5 6 6 9 7 8 6 8 5 8 6 6 9 8 9 10 10 9 10 10 10 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH(OH)(OH)CO(OONO2) CH2(OH)CO(OONO2) CH3CH(OH)CO(OONO2) CH2(OH)CH(OH)CO(OONO2) CH3C(OH)(OH)CO(OONO2) CH2(OH)C(OH)(OH)CO(OONO2) CH2(OH)CH2CO(OONO2) CH2(OH)CH2CH2CO(OONO2) CH3C(OH)(CH3)CO(OONO2) CH3CH(OH)CH2CO(OONO2) CH2(OH)CH(OH)CH2CO(OONO2) CH3CH2CH(OH)CO(OONO2) CH2(OH)CH2CH(OH)CO(OONO2) CH2(OH)CH(CH3)CO(OONO2) CH2(OH)C(OH)(CH3)CH(OH)CO(OONO2) CH3CH(OH)CH2CH2CO(OONO2) CH3CH2CH(OH)CH2CO(OONO2) CH2(OH)CH(CH3)CH2CO(OONO2) CH2(OH)CH2CH(CH3)CO(OONO2) CH3CH(OH)CH(OH)CH2CO(OONO2) CH3CH(OH)CH(CH3)CO(OONO2) CH2(OH)CH(CH3)CH(CH3)CO(OONO2) C6H5CO(OONO2) apR2C8H13OCO(OONO2) apR1C9H15OCO(OONO2) Cd(NO2)(OH)=Cd(OH)CO(OONO2) CdH(OH)=Cd(OH)CO(OONO2) CO(NO2)CdH=CdHCO(OONO2) CO(OONO2)CdH=CdHCHO CO(OONO2)Cd(NO2)=CdHCHO CdH2=Cd(CH3)CO(OONO2) CH3COCd(NO2)=CdHCO(OONO2) CHOCdH=Cd(CH3)CO(OONO2) CH3COCdH=CdHCO(OONO2) C(NO2)(OH)(OH)CO(OONO2) CO(NO2)CO(OONO2) CO(NO2)CH(OH)CO(OONO2) CO(NO2)COCH(OH)CO(OONO2) CO(NO2)CH(OH)COCO(OONO2) CH3COC(NO2)(OH)CO(OONO2) CO(NO2)CH(OH)CH(OH)CO(OONO2) CH3COC(NO2)(OH)COCO(OONO2) CH3COC(NO2)(OH)CH(OH)CO(OONO2) Functional Groups | oop | op | op | oop | oop | ooop | op | op | op | op | oop | op | op | op | ooop | op | po | op | op | op | op | op | rp | k pt | k pt | ouopv | ouop | kupv | du p | duvp | up | kupv | du p | ku p | oopv | kpv | kopv | kkopv | kokpv | kopv | koopv | kokpv | koopv 154 Table A.43 Chemical Codes: q011–sw11. Code q011 q012 r071 r081 rk61 rk62 rk63 rk71 rk72 rk73 rk74 ro61 ro64 ro65 ro71 ro72 ro76 ro77 ro81 ro83 ro84 rv62 rv63 rv72 rv73 rv74 rv75 rv78 rv81 rv82 s001 s011 s013 s015 s016 s017 s021 s022 s023 s024 s025 sd21 sn21 so21 sv01 sv11 sw11 C 1 1 7 8 6 6 6 7 7 7 7 6 6 6 7 7 7 7 8 8 8 6 6 7 7 7 7 7 8 8 0 1 1 1 1 1 2 2 2 2 2 2 2 2 0 1 1 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 0 1 8 10 7 6 6 8 8 7 7 6 8 8 8 8 10 10 10 12 12 5 4 7 7 6 9 9 9 9 2 3 3 3 4 4 6 7 6 7 7 4 6 6 1 3 3 N 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 2 1 1 2 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 O 3 3 0 0 5 3 2 2 3 5 4 1 2 3 1 1 2 3 1 2 3 3 5 2 3 5 5 4 2 3 4 2 1 3 3 2 0 1 1 3 2 1 3 1 2 2 1 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Full Chemical Formula NaCO3 NaHCO3 C6H5CH3 C6H4CH3,,CH3 C6H4(OH)(OH),(H)(ONO2) C6H4(OH)(OH),(=O) C6H4(H)(OH),=O C6H3CH3,(H)(OH),(=O) C6H3CH3,(OH)(OH),(=O) C6H2CH3,(OH)(OH),NO2,,(=O) C6H2CH3,(H)(OH),(=O),,NO2 C6H5(OH) C6H4(H)(OH),H(OH) C6H4(OH)(OH),H(OH) C6H5CH2(OH) C6H4CH3,OH C6H3CH3,H(OH),H(OH) C6H3CH3,OH(OH),H(OH) C6H3CH3,OH,CH3 C6H3CH3,H(OH),(CH3)(OH) C6H3CH3,OH(OH),(CH3)(OH) C6H4OH,NO2 C6H3OH,NO2,,NO2 C6H4CH3,,NO2 C6H3CH3,OH,NO2 C6H2CH3,OH,NO2,,NO2 C6H3CH3,(OH)(OH),OH(NO2) C6H3(OH),H(OH),CH3,NO2 C6H3CH3,NO2,CH3 C6H2CH3,OH,CH3,,NO2 H2SO4 CH3SO2 CH3SO CH3SO3 CH3SO3H CH3SOOH CH3SCH3 CH3SOHCH3 CH3SOCH3 CH3SOHO2CH3 CH3SOOHCH3 CH3SCHO CH3SONO2CH3 CH3SCH2(OH) HSNO2 CH3SNO2 CH3SNO Functional Groups |q |q |r |r | rook | rook | okr | rok | rook | rook | rok | ro | roo | rooo | ro | ro | roo | rooo | ro | roo | rooo | rov | rovv | rv | rov | rovv | rooov | roov | rv | rov |s |s |s |s |s |s |s |s |s |s |s | ds | ns | so | sv | vs | ws 155 Table A.44 Chemical Codes: t0A1–uv31. Code t0A1 tk81 tk82 tk91 tk92 toA1 u041 u042 ud31 ud32 ud33 ud34 ud41 ud42 ud43 ud51 ud52 ud53 ud71 ud81 uk22 uk23 uk31 uk32 uk33 uk41 uk51 uk71 uo22 uo23 uo32 uo33 uo34 uo35 uo36 uo37 uo41 uo42 uo51 uo52 uo53 uu51 uv21 uv22 uv31 C 10 8 8 9 9 10 4 4 3 3 3 3 4 4 4 5 5 5 7 8 2 2 3 3 3 4 5 7 2 2 3 3 3 3 3 3 4 4 5 5 5 5 2 2 3 X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 H 16 12 14 16 16 18 8 8 2 4 3 4 4 6 3 6 6 5 10 12 2 2 4 4 4 6 8 12 4 4 6 6 6 6 6 6 8 8 10 10 10 8 1 3 5 N 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 O 0 2 2 2 3 2 0 0 3 3 5 1 2 1 4 2 2 4 2 2 2 1 2 3 1 1 2 2 2 1 2 3 1 1 2 1 1 1 1 2 2 0 4 4 4 S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Full Chemical Formula C9H13CH3 CH3CO’CH’CH2’CO’C(CH3)CH3 CH3CO’CH’CH2’CH(OH)’C(CH3)CH3 CH3CO’CH’CH2’CH(CH2(OH))’CCH3CH3 CH3CO’CH’CH2’CH(CH2(OH))’CCH3CH2(OH) C9H12CH3(OH),H(OH) CH3CdH=CdHCH3 CH3Cd(CH3)=CdH2 CdO=Cd(OH)CHO CdH(OH)=Cd(OH)CHO Cd(NO2)(OH)=Cd(OH)CHO CdH2=CdHCHO CHOCdH=CdHCHO CdH2=Cd(CH3)CHO CO(NO2)CdH=CdHCHO CH3COCdH=CdHCHO CHOCdH=Cd(CH3)CHO CH3COCd(NO2)=CdHCHO CH3COCd(CHO)=Cd(CH3)CH3 CH3Cd(CH3)=Cd(COCH3)CH2CHO CdH(OH)=CdO CdH2=CdO CH3Cd(OH)=CdO CH2(OH)Cd(OH)=CdO CH3CdH=CdO CdH2=CdHCOCH3 CdH2=Cd(CH3)COCH2(OH) CH3COCd(CH2(OH))=Cd(CH3)CH3 CdH(OH)=CdH(OH) CdH2=CdH(OH) CH3Cd(OH)=CdH(OH) CH2(OH)Cd(OH)=CdH(OH) CH3CdH=CdH(OH) CH3Cd(OH)=CdH2 CH2(OH)CdH=CdH(OH) CdH2=CdHCH2(OH) CH3CH2Cd(OH)=CdH2 CH3CdH=Cd(OH)CH3 CH3CH2CH2CdH=CdH(OH) CdH2=CdHC(CH3)(OH)CH2(OH) CdH2=Cd(CH3)CH(OH)CH2(OH) CdH2=Cd(CH3)CdH=CdH2 CdO=Cd(NO2)(OH) CdH(OH)=Cd(NO2)(OH) CH3Cd(OH)=Cd(NO2)(OH) Functional Groups |t | kkt | kto | kto | ktoo | too |u |u | douk | douo | douov | ud | dud | ud | dkuv | ku d | du d | dkuv | kdu | kd u | ouk | uk | ouk | oouk | uk | ku | uko | kou | ouo | uo | ouo | oouo | uo | ou | ouo | ou | ou | ou | uo | uoo | uoo | uu | oukv | ouov | ouov 156 Table A.45 Chemical Codes: vk21–wo11. Code vk21 vk31 vk32 vk33 vk34 vk38 w011 w021 wo11 C 2 3 3 3 3 3 1 2 1 X 0 0 0 0 0 0 0 0 0 H 3 3 3 5 5 3 3 5 3 N 1 1 1 1 1 1 1 1 1 O 5 5 4 5 5 5 1 1 2 S 0 0 0 0 0 0 0 0 0 Full Chemical Formula CH(OH)(OH)CO(NO2) CO(NO2)COCH2(OH) CH3COCO(NO2) CH3C(OH)(OH)CO(NO2) CH3COC(OH)(OH)(NO2) CH2(OH)COCO(NO2) CH3(NO) CH3CH2(N=O) CH2(OH)(N=O) Functional Groups | koov | kkov | kkv | ookv | ookv | okkv |w |w | ow Appendix B Mechanism Revisions: Discussion The revisions made to the NCAR Master Mechanism are described in this appendix. Non-Troe reactions are described first, followed by Troe reactions, and then photolysis reactions. For each family of compounds there is a brief discussion of their chemistry and a detailed discussion of the parameters used for reactions where revisions were not straightforward. Tables containing the revised rate (and in some cases, mechanistic) parameters are included in Appendix C. The following reviews were used as the basis for the revisions made to the Master Mechanism: Atkinson et al. [1992b], Atkinson [1994], DeMore et al. [1997], and Sander et al. [2000]. Revisions made to the peroxy radical reactions were primarily based on the work of Kirchner and Stockwell [1996]. Additionally, many of the revisions made to the chemistry of alkyl nitrates (and reactions of subsequent products) were based on the changes made to the NCAR Master Mechanism-Version 2.0 by Williams [1994a], which formed a portion of his dissertation work [Williams, 1994b]. 157 158 B.1 Non-Troe Reactions B.1.1 Inorganic Chemistry B.1.1.1 Odd Oxygen Table C.1 lists the odd oxygen reactions examined, those involving O(3 P) and O(1 D). Additionally, the rate constants, k298, and activation temperatures, Ea /R, used in the revised mechanism and the source of these parameters are also listed in Table C.1. DeMore et al. [1997] served as the main reference for these reactions. Many of the recommended rate parameters for these reactions match those used in Version 2.0 of the NCAR Master Mechanism. In Table C.1 these reactions list Madronich and Calvert [1989] as the recommended source in addition to the source used to verify the rate parameters. While the chemistry of halogenated compounds were not completely revised, revisions were made to these reactions if new recommendations were listed by DeMore et al. [1997] or Atkinson et al. [1992b]. In the NCAR Master Mechanism, the reactions of O2 with O(3 P) and N2 with O(1 D) are treated as “true” three body reactions. For these reactions, the rate constants used by Madronich and Calvert [1989] were compared to the rate constant at 298 K calculated from the low pressure limit rate parameters recommended by DeMore et al. [1997]. As the low pressure limit rate parameters recommended by DeMore et al. [1997] matched those in the original mechanism, no changes were made to these reactions. B.1.1.2 Odd Hydrogen The HOx reactions in Table C.2 were updated using the recommendations of DeMore et al. [1997]. HO2 + HO2 This reaction has both bimolecular and termolecular components as well as a dependence on water vapor. Because of the complex nature of this rate constant, it is calculated in gear.f using the following equations: U2*1.7 10,12 *EXP( 600.*(1./TEMP - 1./298.)) RK2 = RK3 = FH2O = CUNIT* 1.4 10,21 *EXP(2200./TEMP) R(ITYPE5(I)) = (RK2 + RK3*DENS)*(1. + FH2O*CH2O) U3* 4.9 10,32 *EXP(1000.*(1./TEMP - 1./298.)) The only change made in the above equations was in the bimolecular rate, RK2. The rate was changed from 1.5E-12*EXP(600*(1/temp - 1/298), where 1.5E-12 is the rate constant at 298 K, to the recommendation of DeMore et al. [1997], k(298) = 1.7E-12 cm3 molecule,1 sec,1 . 159 B.1.1.3 Inorganic Nitrogen Species Reaction rate parameters for reactions involving inorganic nitrogen species were compared with the parameters recommended by DeMore et al. [1997]. As shown in Table C.3, a number of parameters have been altered. NO2+ O3 The channel producing NO3 and O2 is the only channel included in the recommendation by DeMore et al. [1997]. However, Cantrell et al. [1985] suggests that a second channel producing NO and 2O2 is responsible for 3% of the reaction of NO2 and O3 [FinlaysonPitts and Pitts, 1986]. Stockwell et al. [1997] includes the dominant channel and uses the rate constant recommended by DeMore et al. [1997]. Madronich and Calvert [1989] used the rate constant which is recommended by DeMore et al. [1997] for the dominant channel as well as 3% of that rate constant for channel B. As the data used in the evaluations [DeMore et al., 1997; Atkinson, 1994] were published prior to the creation of the Master Mechanism (1985 or earlier), this reaction and its parameters were not altered. NO3 + M DeMore et al. [1997] notes that thermal decomposition of NO3 has been suggested by Johnston et al. [1986] and Davidson et al. [1990] to occur. However, there is also evidence suggesting that the thermal barrier for dissociation is too great to overcome in the atmosphere, at 47.3 kcal mol,1 . Madronich and Calvert [1989] include this reaction. However, due to the evidence which suggests that this reaction does not take place and the lack of a recommendation by DeMore et al. [1997], this reaction is removed from calculations by placing an “x” in the flag position of dragon.mch. NO2 + HO2 While no rate parameters are recommended, DeMore et al. [1997] includes the following as a new reaction: (B.1) HO2 + NO2 ! HONO + O2 : The recommendation for this reaction is based on the study of Tyndall et al. [1995]. As Tyndall et al. [1995] found no evidence for the occurrance of this reaction in the atmosphere, it was not added to the mechanism. B.1.2 Organic Reactions B.1.2.1 Unsubstituted Hydrocarbons Reactions of methane and NMHC through C6 which do not contain reactive functional groups are shown in Table C.4. These include reactions of alkanes, alkenes, and alkynes with OH and NO3 as well as ozone reactions for the alkenes and alkynes. Reactions of the nonspecific hydrocarbons (c051, c061, c071, etc) were not altered. Rate parameters are available for a number of alkanes 160 not included in the original Master Mechanism (2,2-Dimethylpropane, n-hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, cyclohexane and n-hexane) [Atkinson, 1994]. These hydrocarbons were not added at this time because these hydrocarbons have not been observed in arctic air. Alkene reactions with OH, O3 , and NO3 are complete through C4 . Rate parameters are available [Atkinson, 1994] for the following alkenes which are not included in the original Master Mechanism: 2-methylpropene, 1-pentene, cis- and trans-2-pentene, 3-methyl-1-butene, 2-methyl1-butene, 2-methyl-2-butene, 1-hexene, 2-methyl-1-pentene, 2-methyl-2-pentene, and trans-4methyl-2-pentene. These alkenes have not been observed in arctic air and were therefore not added at this time. The major loss processes of alkynes include reaction with OH, NO3, and O3 . The only alkyne included in the master mechanism is C2 H2 . However, Atkinson [1994] lists rate data for propyne, 1-butyne, and 2-butyne. As acetylene is the only alkyne measured in arctic air, reaction of propyne and butyne were not added. While the reaction with ozone is of negligible importance as a loss process [Atkinson, 1994] (rate constants are on the order of 10,20 cm3 molecule,1s,1 ) the reaction of acetylene with O3 was added to the Mechanism for completeness. The major products of the reaction of C2 H2 with O3 are believed to be CO, CO2 , and HCOOH [DeMore et al., 1997]. For several of the NMHC, rate parameters are reported in the form of K=CTn exp ,D=T . To compare these rate parameters to those used by Madronich and Calvert [1989], the Arrhenius parameters A and B are calculated using the following expressions [Atkinson, 1994]: A B B.1.2.2 = = CT n exp n D + nT: (B.2) (B.3) Alkyl Radicals The overwhelming fate of the alkyl radicals (produced as a result of H-atom abstraction) is reaction with O2 to form peroxy radicals. On average, 0.05% for C2 H5 , the reaction results in the production of an alkene and HO2 , through the decomposition of the excited [RO2 ] radical. C2H5 ! [C2H5 O2] M CHO ! [C2 H5 O2 ] 2 5 2 [C2 H5 O2 ] ! C2H4 + HO2 (B.4) (B.5) (B.6) The alkyl radical reactions examined are listed in Table C.5. B.1.2.3 Peroxy Radical Reactions The peroxy radical reactions were updated using the methods of Kirchner and Stockwell [1996]. The updated reactions include alkyl peroxy radical and acyl peroxy radicals with NO and HO2 , as well 161 Table B.1 Alkyl Radical Updates. Reaction 0XCH3 O3 0XCH3 O2 0 CH3 O2 (M) 0 C2H5 O2 0 C2H5 O2 (M) 0 HCO O2 0 0o11 O2 k298 ! ! ! ! ! ! ! E/R ? ? 2011 (M) C2H4 HO2 2021 XPOO (M) CO HO2 CH2O HO2 Reference 2.6E-12 2.2E+02 <3.0E-16 0.0E+00 1.1E-12 -1.2E+03 <2.0E-14 0.0E+00 7.5E-12 -1.2E+03 5.5E-12 -1.4E+02 9.1E-12 0.0E+00 a Recommended by DeMore et al. [1997] Madronich and Calvert [1989] a Madronich and Calvert [1989]a DeMore et al. [1997], see Table C.19 DeMore et al. [1997] DeMore et al. [1997], See Table C.19 Madronich and Calvert [1989]a DeMore et al. [1997] as peroxy radical cross reactions. The rate constants at 298 K and the “activation temperatures,” Ea /R, were updated as needed. The new rate constants and activation temperatures are listed in Tables C.6–C.6. Each peroxy radical is believed to react with itself (self–reaction), any of the other peroxy radicals which are present (cross–reaction), HO2 , NO, and NO2 . Recent work [LeBras, 1997; Canosa-Mas et al., 1996] suggests that the peroxy radicals may also react with NO3 . Reactions with NO The revised rate parameters for the reactions of peroxy radicals with NO are shown in Table C.6. For the reaction of peroxy radicals with NO, experimental kinetic data were used if available. If data were not available, as suggested by Atkinson [1994] the acyl peroxy radicals were assigned the measured rate parameters of peroxy acetyl radical (k = 1.8 10,11 and E/R = -3.6E+02 [DeMore et al., 1997]). For the alkyl peroxy radicals, the rate constants were set equal to 4.010,12 molecule,1 cm3 s,1 [Kirchner and Stockwell, 1996]. For the reaction of the larger alkyl peroxy radicals with NO there are two possible reaction pathways. RO2 + NO RO2 + NO M ,! ,! RONO2 (B.7) RO + NO2 (B.8) The rate constant ratio ka /(ka+kb ) depends on temperature, and pressure, and the number of carbons in the molecule. The branching ratio of the rate constants for secondary alkyl peroxy radical can be determined using the following Equation [Atkinson, 1994]: 0 1 300 ,m ka = B B@ Yo [M](T=300) ,mo CCA F z kb where, 1+ (B.9) Y300 o [M](T=300) o Y300 1 (T=300),m1 8 " < :1 + log ,m Y300 o [M](T=300) o Y300 1 (T=300),m1 !#29 =,1 ; z = Y300 o = en = number of carbon atoms in the peroxy radical n (B.10) (B.11) (B.12) 162 and based on the evaluation of Atkinson [1994], Y300 1 mo m1 F = = 0:826 1:94 10,22cm3 molecule,1 = 0:97 = 0 = = (B.13) (B.14) (B.15) (B.16) 8:1 (B.17) 0:411 (B.18) The branching ratios for primary and tertiary peroxy radicals were calculated from the secondary ratio, using the relations, ka=kb)primary 0:40(ka=kb)secondary (ka =kb)tertiary 0:30(ka=kb)secondary: ( (B.19) (B.20) Note that the rate constant ratio calculated in this manner may be too high for –hydroxyalkyl peroxy radicals [Atkinson, 1994]. Methylperoxy Radical Reaction with Nitric Oxide (CH3(OO.) + NO) The reaction of CH3 O2 with NO is believed to result mainly in NO2 and CH3 O. Ravishankara et al. [1981] report that at least 80% of the reaction results in NO2 production. Zellner et al. [1986] report the yield of CH3 O to be 1.0 0.2. Williams [1994a] added a channel which produces methyl nitrate (CH3 ONO2 , n011). However, in the absence of data showing this channel exists, the channel was not included in model updates. Ethylperoxy Radical Reaction with Nitric Oxide (CH3CH2 (OO.) + NO) Plumb et al. [1982] report the channel which produces NO2 is responsible for at least 80% of the all C2 H5 O2 . Maricq and Szente [1996] report, “The small negative temperature dependence is consistent with the accepted mechanism of the reaction proceeding through a C2 H5 O2 NO adduct.” They also report, “The product study of Atkinson et al. [1982b] shows that the reaction between these radicals and NO proceeds to greater than 98% via the channel C2 H5 O2 + NO ! C2 H5 O + NO2 (B.21) C2 H5O2 + NO + M ! C2 H5ONO2 + M” (B.22) and that less than 2% occurs by [Eberhard and Howard, 1996] report the branching ratio, kB:21/(kB:21+kB:22), is 0.014 for the C2 H5 O2 radical [Atkinson et al., 1982b] and 0.02 for the n-C3 H7 O2 radical [Carter and Atkinson, 1989]. Eberhard and Howard [1996] also report that the negative temperature dependence can be explained by the “formation of a bound reaction intermediate RO2 + NO ! [ROONO] ! RO + NO2 (B.23) 163 Table B.2 Summary of Rate constants for Alkyl Peroxy Radicals with HO2 . Functional Group RACM Code HC3P–HC5P alcohol alcohol alcohol org. nitrates ketones aromatics acids aldehydes Ether peroxy acid hydroperoxides PAN unsaturated nitro OLP2 OLTP–OLIP OLNN–OLND KETP TOLP,XYLP Master-Mech Code 2011 2021 2031–2081 2o11 2o21 2o31–2o81 2n11–2nA1 2k33–2k71 2r61–2r82, 2t71–2tA1 2a21–2a53 2d21–2dA2 2e72 2g21,2g40 2h51–2h71 2p21–2p31 2u51–2u71 2v31 k at 298 K 5.6 10,12 8.0 10,12 1.3 10,11 1.2 10,11 1.0 10,11 1.3 10,11 1.3 10,11 9.0 10,12 1.0 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 1.3 10,11 E/R -800 -700 -1300 -2300 -1300 -1300 -1300 -980 -1300 -1300 -1300 -1300 -1300 -1300 -1300 -1300 as postulated for the HO2 + NO and CH3 O2 + NO reactions.” Williams [1994a] added a reaction channel resulting in the production of ethylnitrate (CH3 CH2 ONO2, n021). Because this reaction pathway is believed to be insignificant, it was not included in model updates. Reactions with HO2 Experimentally determined kinetic data were used for the reaction of peroxy radicals with HO2 if available. Because there are so few available measurements, many peroxy radicals are assigned the measured value of the peroxy radicals that they are most similar to, following the methods of Kirchner and Stockwell [1996]. Table B.2 summarizes the rate constants assigned to various groups of peroxy radicals for their reaction with HO2 . For many of the RO2 + HO2 reactions Kirchner and Stockwell [1996] used an average E/R and rate constant. The E/R value was the average of (CH3 )3 CCH2 O2 , c-C5 C9 O2 , and c-C6 H11O2 . The rate constant was an average of the reactions for C2 H5O2 , HOCH2 CH2 O2 , (CH3 )3 CCH2 O2 , c-C5 C9 O2 , c-C6 H11O2 , and C6 H5CH2 O2 . These average values were assigned to peroxy radicals from alkanes (HC3P, HC5P, HC8P), peroxy radicals from alkenes (OLTP, OLIP), and from alkene adducts with NO3 (OLNN, OLND). Peroxy radicals from ketones (KETP) and ethyl peroxy radical (OLP2) use only the averaged E/R value, while their rate constants are based on measurements. The reaction rate of ketones with HO2 are set equal to the reaction rate of CH3 C(O)CH2 O2 (2k33) with HO2. The rate constants and E/R values for the reaction of aromatic compounds with HO2 are treated as C6 H5 CH2 O2. Each peroxy acyl radical reaction with HO2 has two possible reaction pathways [DeMore et al., 1994; Kirchner and Stockwell, 1996], one producing a peroxy acid, -C(O)OOH, Reaction B.24, and the other producing an acid, -C(O)OH, Reaction B.25. R-C(O)OO + HO2 ,! R-C(O)OOH + O2 (B.24) 164 ,! R-C(O)OH + O3 (B.25) Reaction pathway B.25 was not included in Stockwell et al. [1990]’s original mechanism or in the Master Mechanism [Madronich and Calvert, 1989]. This second reaction pathway was added using the rate constant, E/R value, and branching ratio recommended by [Kirchner and Stockwell, 1996] for the peroxy acetyl radical (3021). The rate constants and E/R values for reactions like Reaction B.24 which were included in the Master Mechanism were altered to use the rate constants recommended by Kirchner and Stockwell [1996]. A full list of the peroxy radical reactions with HO2 is shown in Table C.7. CH3 C(O)O2 + HO2 There are a number of recommendations for the reaction of peroxyacetyl radical with HO2 . The rate constant and activation temperature recommended by DeMore et al. 1994, 1997 and Lightfoot et al. [1992] are taken from the study by Moortgat et al. [1989]. However, Lightfoot et al. [1992] suggests that their recommended rate constant may be too large. In their model RACM, Stockwell et al. [1997] use the parameters from LeBras [1997] rather than DeMore et al. [1994]. LeBras [1997] lists the rate constant for 3021 + HO2 from Moortgat et al. [1989] as well as a study performed by Moortgat which was submitted as a 1991 LACTOZ annual report. Due to the additional data taken into consideration, the model was altered to use the rate constant used by Kirchner and Stockwell [1996], which is based on LeBras [1997]. Reactions with NO2 In the NCAR Master Mechanism-Version 2.0 there are only two reactions of alkyl peroxy radicals with NO2 , the methylperoxy radical and C6 H5 O2. As the rate parameters recommended by DeMore et al. [1997] for the reaction of methylperoxy radical with NO2 are the same as those used in the Master Mechanism, that reaction was not altered. Reaction of alkyl peroxy radicals with NO2 are typically insignificant compared to the other reactions of alkyl peroxy radicals under most tropospheric conditions [Finlayson-Pitts and Pitts, 1999], as this reaction forms peroxynitrates which rapidly undergo thermal decomposition back to reactants. Additional reactions were therefore not added. For the reactions of peroxy acyl radicals with NO2 experimentally determined rate parameters were used if they were available. The high pressure limit rate constant recommended by DeMore et al. [1997] (k298 = 8:6 10,12 molec,1 cm3 s,1 ) for the reaction of peroxyacetyl radical with NO2 was used where experimental data did not exist. Reactions with NO3 Only those peroxy radicals which have experimentally determined rate constants for their reaction with NO3, methyl peroxy (2011) and peroxy acetyl (p021), were added at this time. The reactions added are shown in Table C.9. Self-reactions Rate constants and Ea /R values for reactions of peroxy radicals with themselves were updated with experimentally determined data if available. Kirchner and Stockwell [1996] provide a list of experimental measurements which were used in their study. 165 If an experimentally determined rate constant was not available, the following equation was used to estimate the rate constant for peroxy radical self-reactions. k 2 10,14 exp 3:8A , 5 + 1 + 03:02N 2 N (B.26) where, k A A N = rate constant in molecule,1 cm3 s,1 = 0, if there are no additional oxygen atoms in the alkyl group = 1, if there are additional oxygen atoms in the alkyl group = number of alkyl or alkoxy groups connected to the C-O-O group = number of carbon atoms in the alkyl peroxy radical, N 7. This equation was developed by Kirchner and Stockwell [1996] to fit the rate constants of peroxy self reactions based on the following parameters: carbon number, branching structure (methyl, primary, secondary, or tertiary), and electron withdrawing functional groups. Generally, as the carbon number increases the rate constant increases, due to an increased stability of the transitional states of the larger radicals. Steric effects decrease the rate constants in the order of methyl > primary > secondary > tertiary. There are several limitations to the use of Equation B.26. First, there are no measured rate constants for peroxy radicals with a carbon number greater than 7. As recommended by Kirchner and Stockwell [1996], if N> 7, the rate constant was estimated using equation B.26 with N set equal to 7. This exception was applied to a number of peroxy radicals, including: 2081, 2d81, 2d82, 2dA2, 2nA1, 2o81, 2r81, 2r82, 2t81, 3k81, 3t91, and 3tA1. The second limitation of using Equation B.26 involves the location of additional oxygen atoms. Equation B.26 was developed from measurements of peroxy radicals with the oxygen atom attached to or to the C-O-O group. It is not possible to know if the equation holds for peroxy radicals containing an electron withdrawing group further away. For the compounds which have an additional oxygen not attached to or to the C-O-O group, the parameter A was set equal to zero as recommended by Kirchner and Stockwell [1996]. Third, Kirchner and Stockwell [1996] note that the rate constant is probably overestimated for peroxy radicals containing 4 or more carbons which are derived from terminal HO-alkene adducts. The authors recommend an upper limit of 8.0 10,12 molecule,1 cm3 s,1 for these reactions. In the master–mechanism, none of the species with 4 or more carbons exceed the recommended upper limit. There are a number of non-specific species in the Master Mechanism which have the form of Cx Hy (OO), where there are a number of possible isomers. For these compounds, a family self-reaction rate constant was assigned based on the family assignments used by Madronich and Calvert [1989]. Madronich and Calvert [1989]’s primary, secondary, and tertiary assignments were also followed for the aromatic compounds (2r61, 2r62, 2r63, 2r71, 2r72, 2r73, 2r74, 2r75, 2r81, 2r82) and alpha-pinene and its derivatives (2tA1, 3r71, 3t91, 3tA1). 166 Table B.3 Activation Temperatures for Peroxy Radical Self Reactions. If A=0, use Equation B.27. If A=0 because the O group is terminal, Ea /R = -1000 K. If A=1, then Ea /R = 1000 K. If N>7, then Ea /R = -2000 k. There were two compounds, 2m12 and 2m23, in the master mechanism where the peroxy group was attached to a nitrogen atom rather than a carbon. Because Equation B.26 was developed only with alkyl peroxy and acyl peroxy radicals, I didn’t feel that it could be used to calculate the selfreaction rate for these two compounds. The rate constants for these two compounds were unaltered from Madronich and Calvert [1989]. If experimental activation temperatures (E/R) are available, they were used. Otherwise E/R was assigned following the methods of Kirchner and Stockwell [1996] which is summarized in Table B.3. Kirchner and Stockwell [1996] developed Equation B.27 to estimate the activation temperature (Ea /R), for self-reactions of species with no additional oxygen atoms in the alkyl group. Ea=R 2800 , 700 N , 1300 (B.27) Since there are no experimental values which are less than -2000 K, this is used as the limiting value for large N. If there is an additional oxygen atom, then Kirchner and Stockwell [1996] recommend using an Ea /R value of 1000 K. Methylperoxy Radical Self Reaction The recommendation of DeMore et al. [1997] is unchanged from the recommendation made in 1994 [DeMore et al., 1994]. The self reaction has been estimated using UV absorption techniques to measure k/ . DeMore et al. [1997] calculate the rate constant using the average at 250 nm from Sander and Watson [1981], Kurylo et al. [1987], Dagut and Kurylo [1990], Jenkin et al. [1988], Lightfoot et al. [1990] and the weighted average of k/ at 250 nm from Cox et al. [1980], Sander and Watson [1981], McAdam et al. [1987], Kurylo et al. [1987], Jenkin et al. [1988], Lightfoot et al. [1990], and Simon et al. [1990]. DeMore et al. [1997] admits some apprehension about using this technique, “It is not clear whether the above procedure of recalculating k using an average value of is valid. Therefore, the quoted error limits encompass the values of k calculated by various authors.” Kirchner and Stockwell [1996] use the recommendation from Lightfoot et al. [1992]. Lightfoot et al. [1992] includes more studies and more recent studies in their review than DeMore et al. [1997]. Because it is a detailed review of peroxy radical chemistry the model was altered to use the self reaction rate parameters recommended by Lightfoot et al. [1992]. Cross-reactions In the master mechanism, methyl peroxy radical cross reactions are treated explicitly. A list of these reactions and their revised rate parameters are shown in Table C.10. A counter scheme is used for all other peroxy radical cross reactions as described by Madronich 167 and Calvert [1990]. The counter scheme involves dividing the peroxy radicals into the following families: primary, secondary, tertiary, and acyl. Each peroxy radical reacts with each of the counters, shown in Table C.11. The rate constants for the cross reactions are determined by taking twice the geometric average (Equation B.28) of the self–reaction rate constants. (For the counters this is the recommended self-reaction rate of the family to which the peroxy radicals belongs.) k12 = 2(k1k2 )1=2 (B.28) where, ki is the self–reaction rate constant for the family of each of the peroxy radicals, and k12 is the cross–reaction rate constant for the two peroxy radicals. Kirchner and Stockwell [1996] also recommend using Equation B.28 to calculate the cross reaction rate constants. They chose to treat the peroxy cross reactions with methyl peroxy radical (2011) and peroxy acetyl radical (3021) explicitly because 2011 and 3021 are the most prevalent organic peroxy radicals. In addition, the self reactions of 2011 and 3021, and their cross–reactions 2011 + 3021, 2011 + RO2, and 3021 + RO2, have been shown to be the most important peroxy-peroxy radical reactions [Stockwell et al., 1990; Stockwell, 1995]. No other peroxy radical cross reactions were included by Kirchner and Stockwell [1996] because of “their apparently low importance” [Stockwell et al., 1990]. To determine whether it is important to treat peroxy acetyl radical (3021) cross reactions explicitly, as Kirchner and Stockwell [1996] do, the loss rates for the peroxy acetyl radical were examined for a simulation typical of arctic outflow events. For the peroxy acetyl radical, reactions with NO, NO2, and HO2 were significantly faster than reactions with methylperoxy radical and the counters. For peroxy radicals the reactions with NO and HO2 are typically the fastest with the reactions with the counters being the slowest. Of the reactions of peroxy radicals with the counters, the reaction with the peroxy acyl counter is typically fastest. At this time explicit reactions of peroxy radicals with peroxy acetyl radical were not added. The counter method was modified to obtain better estimates of the cross reaction rate constants for all peroxy radicals. Instead of using the generalized family rate constants for both the peroxy radical and the counter in Equation B.28, the self–reaction rate constant calculated in Section B.1.2.3 was used for the peroxy radical rate constant and the family rate constant was used for the counter. The family rate constants recommended by Atkinson [1994] were used for primary, secondary, and tertiary counters, while the acyl counter rate was from Madronich and Calvert [1990]. The activation temperature terms, Ea/R, for cross reactions have large uncertainties. As in Kirchner and Stockwell [1996] the Ea/R values are calculated using Equation B.29. Ea=R = Ea1=R + Ea2=R 2 (B.29) CH3O2 + CH3 C(O)O2 The reaction of methyl peroxy radical with peroxyacetyl radical has two paths [DeMore et al., 1997]: CH3C (O)O2 + CH3 O2 !a CH3 C (O)O + CH3 O + O2 !b CH3 C (O)OH + CH2O + O2 (B.30) (B.31) 168 There seems to be some disagreement over the branching ratios for this reaction. Horie and Moortgat [1992] found ka/kb=2.2106 exp-3280/T = 5.96 at 298 K. Roehl et al. [1996] recommends ka/kb=0.9 at 298 K and Atkinson [1994] suggests that the pathways have equal importance. However, Maricq and Szente [1996] suggest that channel b is the only pathway operable below 298 K. The branching ratio used by Madronich and Calvert [1989] is within this range of values with ka/kb=2.3 at 298 K. Therefore, no alteration of the branching ratio was made. The rate constant recommended by DeMore et al. [1997] was used. B.1.2.4 Alkoxy Radicals Alkoxy radicals can react with O2 , NO, or NO2, decompose, or isomerize. The reaction with O2 is dominant for the small, simple alkoxy radicals, while for larger alkoxy radicals, decomposition and isomerization become more important. The reactions with NO and NO 2 are of minor importance. Due to the difficulty in estimating the importance of the various reactions for each alkoxy radical and the estimated unimportance of these reactions to ozone production in arctic outflow events, the rate parameters for the alkoxy radicals remain largely unchanged. Below is a discussion of the reactions that alkoxy radicals undergo along with a description of steps that were taken to verify that the type of reaction makes little difference to ozone chemistry in arctic outflow. Reaction with O2 The reaction of alkoxy radicals with O2 produces a carbonyl and HO2. R1 CH(O: )R2 + O2 ! R1COR2 + HO2 (B.32) Atkinson [1994] recommends a rate constant for the reaction of O2 with primary alkoxy radicals k(RCH2 O + O2 ) = = 6:0 10,14e,(550=T) cm3molecule,1 s,1 9:5 10,15cm3 molecule,1 at 298 K (B.33) (B.34) and for secondary alkoxy radicals k(R1R2CH2O + O2 ) = = 6:0 10,14e,(550=T) cm3molecule,1 s,1 9:5 10,15cm3 molecule,1 at 298 K. (B.35) (B.36) However, these recommendations only apply to alkoxy radicals formed from alkanes. Atkinson [1990] has slightly different recommendations, but applies them to substituted alkoxy radicals. Atkinson [1994] also reviews expressions derived for the reaction with O2 using the number of abstractable H atoms and the heat of reaction. The following expression is proposed by Atkinson and Carter [1991] k(RO + O2 ) = 1:3 10,19 ne,(0:32∆HO ) cm3molecule,1 s,1 2 (B.37) at 298 K, where n is the number of abstractable H atoms and ∆HO2 is the heat of reaction. Atkinson [1994] uses this expression in the comparison of alkoxy radical reactions. In order to estimate the 169 rate constant for the reaction with O2 , the heats of reaction must be determined. As there are only a handful of these values [Atkinson et al., 1992b], an estimation technique must be used. Alternatively, the recommendation for primary and secondary alkoxy radicals could be used, although explicit treatment of these species would be lost. Atmospheric Implication The alkoxy radical reactions with O2 produce HO2 radicals, an important source of OH, converting NO to NO2 in the process. HO2 + NO ! NO2 + OH (B.38) Photolysis of carbonyls, formed from alkoxy radical reactions with O2, also produce HO2 . However, this is an insignificant route for HO2 formation. To determine whether the formation of HO2 from alkoxy radicals is important, the rate of HO2 formed from the alkoxy radicals was compared to the total rate of formation of HO2 . For the simulation used, the maximum rate of formation of HO2 is 700 pptv/hr. The sum of the maximum rates of formation of HO2 from alkoxy radicals is 34 pptv/hr. If all the alkoxy radicals formed are assumed to react completely with O2, there is a negligible effect on the rate of HO2 formation, and therefore the effect on OH levels is negligible. Decomposition The decomposition of alkoxy radicals results in a carbonyl and an alkyl radical which in the presence of O2 becomes a peroxy radical. R1C(O: )(R2)R3 decomposition ! ! R:1 + O2 R:1 + R2 COR3 R1(OO: ) (B.39) (B.40) Isomerization The larger alkoxy radicals may also isomerize, producing alkyl radicals which react with O2, resulting in substituted alkylperoxy radicals. R1CH2CH2 CH2 CH(O: )R2 : R1 CHCH2CH2 CH(OH)R2 : isomerization ! R1CHCH2 CH2 CH(OH)R2 O2 : ! R1C(OO )HCH2 CH2 CH(OH)R2 (B.41) (B.42) The alkoxy radical isomerizations and decompositions in the presence of O2 result in the production of peroxy radicals. The peroxy radicals will convert an additional NO molecule to NO2 without consuming an O3 molecule, before becoming a different alkoxy radical, which may then react with O2 , decompose, or isomerize. Comparison of the first order rate constants indicate that the branching ratios used by Madronich and Calvert [1989] for the unsubstituted alkoxy radicals and the single alkoxy radical containing a ketone are in agreement with those estimated by Atkinson and Carter [1991] which are tabulated in Atkinson [1994]. However, for the alkoxy radicals containing an alcohol group, the branching ratios estimated by Atkinson and Carter [1991] were very different than those used by Madronich and Calvert [1989], and some even result in different dominant reaction pathways. 170 To determine whether the branching ratio of alkoxy radicals is significant to peroxy radical production, the formation rate of alkoxy radicals is compared to the formation of peroxy radicals. The sum of the peroxy radical rate of formation is 230 pptv/hr, while the alkoxy radical rate of formation is only 34 pptv/hr. Therefore, it is believed that the alkoxy radical branching ratios have a negligible affect on the production of peroxy radicals in arctic outflow events. Reaction with NO and NO2 Alkoxy radicals may also react with NO to produce alkyl nitrites, carbonyls and HNO, or react with NO2 to produce alkyl nitrates, carbonyls, and nitrous acid (HONO). R1CH(O: )R2 + NO R1CH(O: )R2 + NO2 !a !b !a !b R1CH(R2 )ONO (B.43) R1COR2 + HNO (B.44) R1CH(R2 )ONO2 (B.45) R1COR2 + HONO (B.46) Methoxy Radical Reaction with Nitric Oxide (CH3O + NO) The reaction of methoxy radical (CH3 O) with NO mainly results in the formation of methyl nitrite, CH3 ONO, with a fraction decomposing into CH2 O and HNO. It is difficult to derive a bimolecular rate constant because the fraction which decomposes is dependent on temperature and pressure. However, DeMore et al. [1997] were able to determine an upper limit of k< 8E-12 cm2molecule,1 s,1 from the studies by Frost and Smith [1990a] and Ohmori et al. [1993]. The reaction of methoxy with nitric oxide was not included in the Master Mechanism [Madronich and Calvert, 1989]. Both the bimolecular and termolecular reactions were added to the mechanism, with parameters taken from DeMore et al. [1997]. CH3 O + NO CH3 O + NO + (M) ! ! CH2 O + HNO (B.47) CH3 ONO (B.48) Methyl nitrite (CH3 ONO, w012) was added to alphadict.dat. As alkyl nitrites photolyze rapidly RONO + hv ! RO + NO (B.49) and to prevent a buildup of methyl nitrite, the photolysis reaction of methyl nitrite which produces CH3 O and NO was added, using twice the cross section of HNO2 and a quantum yield of unity. See Section B.3.3 for further discussion of the photolysis of added alkyl nitrites. Methoxy Radical Reaction with Nitrogen Dioxide (CH3O + NO2 ) DeMore et al. [1997] recommends both a bimolecular and termolecular pathway for the reaction of methoxy radical with NO2 : CH3 O + NO2 CH3 O + NO + (M) ! ! CH2 O + HONO CH3 ONO2 : (B.50) (B.51) 171 The bimolecular reaction (B.50) was a new reaction in DeMore et al. [1997], however the reaction “is not meant to represent a bimolecular metathesis reaction.” It represents the fraction of the reaction which yields CH2 O and HONO [DeMore et al., 1997]. In the original mechanism there was a bimolecular reaction which resulted in the production of CH3 ONO2 (n011). The mechanism was changed to use the kinetic and mechanistic parameters recommended by DeMore et al. [1997]. This includes changing the bimolecular reaction to a termolecular reaction (keeping the same products) and adding a new bimolecular reaction resulting in CH2 O and HONO. Ethoxy Radical Reaction with Nitric Oxide (CH3CH2(O.) + NO) The reaction of ethoxy radical with NO was not included in the Master Mechanism [Madronich and Calvert, 1989]. The recommendation of DeMore et al. [1997] for this reaction is based on the studies of Frost and Smith [1990a] for the high pressure measurements and Daële et al. [1995] for the low pressure measurements scaled to fit an expression summing the bimolecular and termolecular reactions. The bimolecular channel has not yet been verified, but has an estimated rate constant of 10,12 . The model was altered to include the following termolecular reaction using the rate parameters recommended by DeMore et al. [1997]. CH3 CH2 O + NO + (M) ! CH3 CH2 ONO + (M) (B.52) Like methyl nitrite, a photolysis reaction was added for the ethyl nitrite (CH3 CH2 ONO, w022) formed. See Section B.3.3 for more information on the photolysis parameters. Ethoxy Radical Reaction with Nitrogen Dioxide (CH3CH2 (O.) + NO2) The recommendation of DeMore et al. [1997] for the high pressure rate constant of C2 H5 O + NO2 to form C2 H5 ONO2 is based on the work of Frost and Smith [1990b], while the other values are estimated. This reaction was altered from a bimolecular reaction to a termolecular reaction as recommended by DeMore et al. [1997]. Rate parameters are listed in Tables C.14 and C.19. B.1.2.5 Oxygen Containing Organics The reactions involving oxygenated organic compounds, such as carbonyls, alcohols, carboxylic acids, and hydroperoxides, which were examined are shown in Tables C.13–C.14. Carbonyls In the atmosphere, carbonyls photolyze and react with OH, NO3, and HO2 . The photolysis reactions are discussed in Section B.3.4. The thermal carbonyl reactions which were examined are shown in Table C.13. Reaction with OH The carbonyl reactions with OH occur by H–atom abstraction. For aldehydes the relatively weak aldehydic hydrogen is abstracted [Finlayson-Pitts and Pitts, 1999]. DeMore et al. [1997] provide rate constants for C1–C3 aldehydes while Atkinson [1994] provided rate constants 172 for C1–C5 aldehydes. The only compound in these reviews that was not included in the master mechanism [Madronich and Calvert, 1989] was 2,2-dimethylpropanal (CH3 C(CH3 )(CH3 )CHO). The reactions of OH with the ketones are complete through C5. Atkinson [1994] lists rate constants for C6 and larger ketones. However, the reactions were not added to the mechanism, as this update focuses on C4 compounds. CH2(OH)CHO (do23) + OH As indicated in Table C.13, the branching ratio for this reaction was changed. The reaction proceeds through H-atom abstraction from the C-H bonds. CH2 (OH)CHO + HO A ! B ! H2 O + HOCH2 C.(O) H2 O + HOC.HCHO ! CHOCHO (B.53) (B.54) Atkinson et al. [1992b] recommends the branching ratio obtained by Niki et al. [1987]. The branching ratio is 80% through Channel A, Equation B.53 and 20% through Channel B, Equation B.54. In the Master Mechanism [Madronich and Calvert, 1989], it is assumed that the HOCH2 C.O formed in Equation B.53 reacts with O2 to produce a peroxy acetyl radical. HOCH2 C.(O) + O2 ! HOCH2 C(O)OO. (B.55) A temperature dependence for the reaction of do23 with OH was not reported by Atkinson et al. [1992b] or Atkinson [1994]. As most of the other species with aldehyde and alcohol functional groups included in the Master Mechanism [Madronich and Calvert, 1989] show no temperature dependence, the E/R value for do23 was set equal to zero. CH3COCOCH3 (kk43) + OH The reaction of biacetyl (CH3 COCOCH3 , kk43) with OH was added to the mechanism. The rate constant was set equal to that recommended by Atkinson [1994]. The products were based on the reaction occurring by H–atom abstraction followed by the addition of O2 . C2 H5COC2H5 (k052) + HO Williams [1994a] added the reaction of 3-pentanone (CH3 CH2 COCH2 CH3 , k052) with OH, leading to the production of 4-peroxy-2-pentanone (CH3 COCH2 CH(OO.)CH3 , 2k52). To be consistent with the location of the ketone group, the product was changed to 2-peroxy-3-pentanone (CH3 CH2 COCH(OO.)CH3 , 2k53). C5 H12CO (k062) + HO While k062 is a non-specific C6 ketone formed from non–specific compounds, the reaction products are consistent with the reaction of 3-hexanone with OH. The rate constant for k062 + OH was set equal to the geometric average of the hydroxyl reactions of 2-hexanone and 3-hexanone reported by Atkinson [1994]. Reaction with NO3 The NO3 reactions, which also proceed through H–atom abstraction are expected to be of minimal importance with rate constants on the order of 10,17 to 10,15. However, 173 they may become significant in nighttime chemistry. Rate constant data are available only for aldehydes: formaldehyde, acetaldehyde, and glyoxyl [Atkinson, 1994]. The reactions which were revised are shown in Table C.13. Reaction with HO2 The reaction of HO2 has been shown to occur for several aldehydes: formaldehyde (CH2 O), acetaldehyde (CH3 CHO, d021), and gloxal ((CHO)2 , dd21) [Atkinson, 1994]. The reaction with HO2 is expected to proceed through addition followed by isomerization of the intermediate, resulting in a peroxy radical, e.g., CH2 O + HO2 ! [HOOCH2 O.] ! CH2 (OH)(OO). (B.56) This type of reaction is expected to be unimportant due to the rapid decomposition of the peroxy radicals back to HO2 and the aldehyde. While Atkinson [1994] provides rate parameters for the reaction of HO2 with acetaldehyde and glyoxyl, the peroxy radicals do not exist in the Master Mechanism. Because these reactions are believed to be negligible, they were not added. Alcohols The reaction of alcohols with OH and NO3 are shown in Table C.14. Madronich and Calvert [1989] include the reaction of C1–C3 alcohols with OH. The reactions of C4 alcohols were added to the mechanism, using the rate constants provided by Atkinson [1994]. Branching ratios were calculated using Atkinson, Atkinson and Aschmann [1987, 1989]. Products were assigned assuming the reactions proceed through H–atom abstraction from both the C-H and O-H bonds. While rate constants for C5 alcohols were also tabulated by Atkinson [1994], these reactions were not added. While the reaction of alcohols with NO3 are slow, upper limits have been determined for C1–C3 compounds. The reaction of methanol, ethanol, and propanol with NO3 were added. The products of these reactions are based on H–atom abstraction. Carboxylic Acids The reactions of carboxylic acids with OH which were examined are in Table C.14. Recommendations were only available for only a few species. The reaction with OH is slow with a lifetime due to OH removal being 30–50 days [Atkinson, 1994]. It is most likely that these compounds will be removed by wet or dry deposition. Hydroperoxides The hydroperoxide-containing organic compounds that were changed or verified are listed in Table C.15. A number of hydroperoxide reactions (photolysis and reaction with OH) were added by Williams [1994a]. These reactions were added to provide a loss reaction for the hydroperoxides formed from the new alkyl nitrate reactions. The photolysis reactions are discussed in Section B.3.2. The reactions added by Williams [1994a] were included in the changes to the mechanism. The rate constants used fall within the range of other nitrate-containing hydroperoxide reactions included in the original mechanism. 174 h031 + OH The product was changed by Williams [1994a] from CH3 CH2 CH2 (OO.) (2032) to CH3 CH(OO.)CH3 (2031), which is consistent with H-atom abstraction from the OOH group. CH3 CH(OOH)CH3 + HO ! 0:5CH3CH(OO)CH3 + 0.5 CH3 COCH3 + 0.5 HO B.1.2.6 (B.57) Nitrogen Containing Organics Alkyl Nitrates The major loss processes of alkyl nitrates are reaction with OH and photolysis. For larger alkyl nitrates, C5, the reaction with OH is dominant, while for smaller alkyl nitrates the photolysis reaction becomes competitive [Roberts, 1995]. The alkyl nitrate reaction with OH proceeds through H–atom abstraction from a C–H bond, producing alkyl radicals. The radicals then react with O2 in the presence of NO to produce an alkoxy nitrate, shown here for ethyl nitrate. CH3 CH2 (ONO2 ) + HO CH2 CH2 (ONO2 ) CH2 (OO)CH2 (ONO2 ) + NO ! O2 ! ! CH2 CH2 (ONO2 ) CH2 (OO)CH2 (ONO2) CH2 (O)CH2 (ONO2) + NO2 (B.58) (B.59) (B.60) Table C.16 summarizes the changes made to the alkyl nitrate rate constants for their reaction with OH. Photolysis of alkyl nitrates result in the cleavage of the O–NO2 bond, producing an alkoxy radical and NO2 . (B.61) CH3 CH2 (ONO2 ) + hv ! CH2 CH2 (O) + NO2 The lifetime for C2-C4 alkyl nitrates considering photolysis is 15–30 days [Atkinson, 1994]. Photolysis reactions were added for C2-C5 alkyl nitrates (n021, n031, n032, n041, n042, n053, n054, n055), using the reactions Williams [1994a] generated. Additionally, a photolysis reaction was added for n043. The photolysis reactions produce alkoxy radicals and NO2 . The absorption cross sections and quantum yields were set to match the recommendations of Atkinson [1994]. The photolysis of alkyl nitrates is discussed further in Section B.3.3. Hydroxyl radical reactions with the following C2–C5 alkyl nitrates were added to the Master Mechanism: n021, n031, n032, n041, n042, n053, n054, n055. The reactions were generated by Williams [1994a] using a mechanism generator. The reactions proceed through H–atom abstraction. If an abstractable hydrogen is on the carbon attached to the nitrate, this results in the production of a carbonyl and NO2 . (B.62) CH3 (ONO2 ) + HO ! CH2 O + NO2 Overall rate constants were compared to DeMore et al. [1997] for n011 and n021; Talukdar et al. [1997] for n021 and n031; and Atkinson [1994] for all others except n054 for which there were no rate constants available. Atkinson [1994] recommends using the method developed by Atkinson [1987] as revised by Atkinson and Aschmann [1989] to estimate the product distribution of the 175 Table B.4 Comparison of Alkyl Nitrate Branching Ratios. RONO2 n021 product CH2(O2 )CH2(ONO2) CH3CHO + NO2 Total n031 CH2(OO.)CH2CH2(ONO2) CH3CH(OO.)CH2(ONO2) CH3CH2CHO + NO2 n032 CH2(OO.)CH(ONO2)CH3 CH3COCH3 + NO2 n041 CH2(OO.)CH2CH2CH2(ONO2) CH3CH(OO.)CH2CH2(ONO2) CH3CH2CH(OO.)CH2(ONO2) CH3CH2CH2CHO + NO2 Total Total Total n042 CH2(OO.)CH2CH(ONO2)CH3 CH3CH(OO.)CH(ONO2)CH3 CH3CH2COCH3 + NO2 CH3CH2CH(ONO2)CH2(OO.) n053 CH2(OO.)CH2CH2CH2CH2(ONO2) CH3CH(OO.)CH2CH2CH2(ONO2) CH3CH2CH(OO.)CH2CH2(ONO2) CH3CH2CH2CH(OO.)CH2(ONO2) CH3CH2CH2CH2CHO + NO2 Total Total n054 CH2(OO.)CH2CH2CH(ONO2)CH3 CH3CH(OO.)CH2CH(ONO2)CH3 CH3CH2CH(00.)CH(ONO2)CH3 CH3CH2CH2COCH3 + NO2 CH3CH2CH2CH(ONO2)CH2(OO.) Total n055 CH2(OO.)CH2CH(ONO2)CH2CH3 CH3CH(OO.)CH(ONO2)CH2CH3 CH3CH2COCH2CH3 + NO2 Total Atkinson 4.32E-14 1.5084E-13 1.94e-13 5.573E-14 2.51E-14 1.946E-13% 5.017e-13 4.32E-14 3.394E-13 3.73e-13 1.858E-13 1.081E-12 3.243E-13 1.786E-12 3.737E-12 1.858E-13 2.514E-13 5.48E-13 1.028E-12 2.013E-12 1.858E-13 1.08E-12 1.3945E-12 3.243E-13 1.9458E-13 3.179E-12 1.8576E-13 1.08102E-12 2.27014E-13 2.3607E-13 3.024E-14 1.76E-12 1.858E-13 2.514E-13 4.249E-13 8.62E-13 % 22% 78% 11.1% 50.1% 38.8% 11.6% 88.4% 10.4% 60.5% 18.2% 10.9% 18.0% 24.4% 53.3% 4.2% Williams 5.5E-14 4.3E-13 4.85E-13 2.7E-13 2.9E-13 1.7E-13 7.3E-13 6.0E-14 1.8E-13 2.4E-13 % 11.3% 88.7% 1.3E-12 90.9% 87.8% 1.3E-13 1.43E-12 2.0E-13 1.8E-13 2.5E-13 9.1% 12.2% 1.65E-12 22.2% 24.4% 53.3% 37.0% 39.7% 23.3% 25% 75% 31.7% 28.6% 39.7% 6.3E-13 5.8% 34.0% 43.9% 10.2% 6.1% 1.1E-12 1.4E-12 This work 22% 78% 1.8E-13 11.1% 50.1% 38.8% 7.3E-13 11.6% 88.4% 2.9e-13 9.2E-13 44% 56% 43.6% 56.4% 6.1% 1.81E-12 2.5E-12 10.6% 61.4% 12.9% 13.4% 1.7% 1.2E-12 2.7E-13 2.7E-13 69.0% 15.5% 15.5% 70.0% 14.7% 15.3% 21.5% 29.2% 49.3% 1.74E-12 3.8E-13 3.6E-13 3.1E-13 1.05E-12 36.2% 34.3% 29.5% 1.74E-12 21.5% 29.2% 49.3% 1.12E-12 176 reaction of C4 alkyl nitrates with OH. This technique was used for comparison to the branching ratios used by Williams [1994a], shown in Table B.4. The dominant branches used by Williams [1994a] were the same as those calculated using the estimation technique [Atkinson and Aschmann, 1989] for all of the added alkyl nitrate reactions with OH except for n055. The common dominant branches resulted from H–atom abstraction on secondary carbons or CH(ONO2 ). In addition, the branching ratios from Williams [1994a] and Atkinson and Aschmann [1989] where within 20% of each other. Methyl Nitrate, n011 There is a large discrepancy between measured rates for the reaction of methyl nitrate with hydroxyl. The rates measured by Kerr and Stocker [1986] and Nielsen et al. [1991a] are 10 times larger than the rates measured by Gaffney et al. [1986] and Talukdar et al. [1997]. The recommendation of Atkinson [1990] is based on the rate measured by Gaffney et al. [1986]. DeMore et al. [1997] favor the lower values of Gaffney et al. [1986] and Talukdar et al. [1997] due to the extensive study of Talukdar et al. [1997]. DeMore et al. [1997] recommends the temperature dependence of Talukdar et al. [1997]. The mechanism was revised to use the parameters recommended by DeMore et al. [1997]. Ethyl Nitrate, n021 Like methyl nitrate, there is a large difference in the measured rate constants. The rate constant measured by Kerr and Stocker [1986] and Nielsen et al. [1991b] is about 3 times larger than that measured by Talukdar et al. [1997]. The rate constant recommended by DeMore et al. [1997] is based on the study of Talukdar et al. [1997]. This rate at 298 K is consistent with that calculated using the estimation technique of Atkinson, Atkinson and Aschmann [1987, 1989]. Williams [1994a] used the value measured by Kerr and Stocker [1986]. The model was altered to use the rate constant and temperature dependence recommended by DeMore et al. [1997]. The rate measured by Talukdar et al. [1997] is reported as k = A1 exp(,E1=RT ) + A2 exp(,E2=RT ), which was fit to the Arrhenius equation by DeMore et al. [1997]. n-Propyl Nitrate, n031 The rate constant was changed to use the value from Atkinson [1994] which is based on the work of Kerr and Stocker [1986], Atkinson [1989], and Nielsen et al. [1991a]. This rate may be too high because it is based on studies which were had a much larger rate for methyl and ethyl nitrate than the current recommendations of DeMore et al. [1997]. The estimation technique [Atkinson, 1987; Atkinson and Aschmann, 1989] was used to determine the branching ratios. i-Propyl Nitrate, n032 Atkinson [1994] lists a rate constant of 4.910,13 cm3 molecule,1 s,1 at 298 K for the reaction of i-propyl nitrate with OH. This rate constant was studied extensively by Talukdar et al. [1997] who report a temperature dependent rate of: k(T ) k(298) = = 4:3 10,12 exp(,1250=T ) + 2:5 10,13 exp(,32=T ) 2:9 10,13 cm3 molecule,1 s,1 (B.63) (B.64) 177 The mechanism was revised to use the temperature dependent rate determined by Talukdar et al. [1997]. Arrhenius parameters were determined using the linear fit of the plot of 1/T vs ln(K) over the temperature range of 220-410 K. This produces the following: kn032+HO (T ) kn032+HO (298 K ) = = 8:5 10,13 exp(,306=T ) for T=220-410 K 3:0 10,13 (B.65) (B.66) The model was altered to use the rate constant at 298 K from Talukdar et al. [1997]’s temperature dependent rate equation, the branching ratio estimated from Atkinson, Atkinson and Aschmann [1987, 1989], and the temperature dependence from the Arrhenius fit of the rate reported by Talukdar et al. [1997]. C4 and C5 Alkyl Nitrates The rate constants for the C4 and C5 alkyl nitrates with OH are from Atkinson [1994]. The branching ratios were estimated using the estimation technique of Atkinson and Aschmann [1989]. The fraction of the reaction which proceeded through a channel which was not added by Williams [1994a], was added to a channel of the same type of H–atom abstraction, if it existed. For example for n042, the channel which produces CH3CH2CH(ONO2)CH2(OO.) is H–atom abstraction on a primary carbon. The fraction which goes through this channel, 4.2%, is added to the more dominant primary H–atom abstraction channel which produces CH2(OO.)CH2CH(ONO2)CH3. If there are no other similar reactions, for example neither primary H–atom abstraction channels were previously included in the n054 reaction with OH, the fraction was proportionately split between the remaining channels. The branching ratios used in this work are included in Table B.4. The branching ratios used are similar, within 20%, to those used by Williams [1994a]. For the C4 and C5 alkyl nitrate reactions with OH, E/R values were not reported by Atkinson [1994] due to a lack of available temperature dependent data. Because most of the activation temperatures generated by Williams [1994a] are close to or within the range of E/R values for methyl and i-propyl nitrate, the activation temperatures from Williams [1994a] were used. Atkinson [1994] listed rate constants for the reaction of a number of alkyl nitrates with HO which were not added to the Master Mechanism due to their size, C5, and the absence of data suggesting these compounds are present in arctic air at non-negligible levels. These alkyl nitrates include: 2-methyl-3-butyl nitrate (n052), 2,2-Dimethyl-1-propyl nitrate, 2-hexyl nitrate, 3-hexyl nitrate, cyclohexyl nitrate, 2-Methyl-2-pentyl nitrate, 3-Methyl-2-pentyl nitrate, 3-heptyl nitrate, and 3-octyl nitrate. nd50 The structure of a functional group in the compound nd50, formed by NO reaction with 2d5A, was changed in the alphadict.dat file from a peroxy nitrate group (O2 NO2 ) to a nitrate group (ONO2 ). Peroxy Acyl Nitrates The changes made to the peroxy acyl nitrates are shown in Table C.17. 178 PAN The formation of PAN is listed in DeMore et al. [1997] as being best described by the Troe expression. The decomposition is calculated from the equilibrium constant also provided by DeMore et al. [1997]. The pathway which produced methyl nitrate, n011, was removed as it is believed the only products from the decomposition are peroxyacetyl radical and NO2 [DeMore et al., 1997]. PPN Atkinson [1994] reported the thermal decomposition of PPN as measured by Schurath and Wipprecht [1980] and Mineshos and Glavas [1991]. The model was altered to use the geometric average of rate constants at 298 and the arithmetic average for the temperature dependence. Other Peroxy Acyl Nitrates For the thermal decomposition of larger peroxy acyl nitrates, Atkinson [1994] recommends k = 41016 exp (,13600=T ). Madronich and Calvert [1989], assigned the same rate constant and activation temperature to all the peroxy acyl nitrates, except for pr71, which is the only aromatic peroxy acyl nitrate. The rate constants for all the peroxy acyl nitrates (p*** species) were changed to the recommendation of Atkinson [1994] except for p021, p031, and pu44 for which measurements exist and pr71 which remained unaltered. The compound pr71 is the only aromatic peroxy acyl nitrate and had a different rate constant than the other peroxy acyl nitrates in the original mechanism. B.1.2.7 Aromatics The only aromatic reactions examined are those of benzene and the resulting compounds. Table C.18 is a summary of the changes made to the aromatic chemistry. Benzene Oxidation The oxidation of benzene by OH is believed to result in the the formation of hydroxycyclohexadienal (HCHD) adduct. This HCHD adduct can dissociate back to its products, react with NO2, or react with O2. There have been several inconsistent results concerning the importance of the NO2 and O2 reactions with the HCHD adduct. Atkinson [1994] suggests that HCHD reacts rapidly with NO2 and that this reaction is significant if the concentration of NO2 is greater than 3:0 1012 molecule cm,3 . Earlier studies suggest that the HCHD adduct also reacts with NO [Zellner et al., 1985]. However, Atkinson [1994] believes that there was an impurity in NO used in the study of Zellner et al. [1985]. In addition, no reaction with NO was observed by Zetsch and co-workers [Atkinson, 1994]. In the Master Mechanism, the oxidation of benzene by the hydroxyl radical does not include the formation of the adduct and the possible reaction of the adduct with NO2 or dissociation of the adduct. The oxidation of benzene in the Master Mechanism effectively results in the products of the HCHD radical reaction with oxygen, producing hydroxyl-2,4-cyclohexadienyl-6-peroxy and phenol, discussed in Sections B.1.2.7 and B.1.2.7, respectively. To determine whether the reaction of the HCHD radical with NO2 is competitive with the reaction of the HCHD radical with O2 in typical arctic air, the psuedo-first-order rate constants were 179 compared for the two reactions. The concentrations of NO2 and O2 were based on the maximum levels reached during the model simulation for the April 4, 1993 trajectory. NO2]max [O2 ]max [ = = 1:248 109 molecules cm,3 5:424 10 molecules cm,3 18 (B.67) (B.68) The rate constants reported by Atkinson [1994] are: K(HCHD+NO ) K(HCHD+O ) 2 = 2 = 2:75 10,11 cm3 molecules,1 s,1 1:6 10,16cm3 molecules,1 s,1 : (B.69) (B.70) The resulting rates are NO2] K(HCHD+NO ) [O2 ] K(HCHD+O ) [ 2 = 2 = 0:03432s,1 867:84s,1: (B.71) (B.72) The reaction of the HCHD adduct with NO2 is much less likely to occur than the reaction with O2 in this NOx limited case, as illustrated by the much slower rate constant. As the reaction of the HCHD radical with NO2 occurs less than 0.004% of the time under these conditions, it will not affect the calculated concentrations of the nitrogen oxide containing aromatic compounds. Therefore, it was deemed unnecessary to add the HCHD adduct and its reaction with NO2 to the Master Mechanism. The kinetic data, shown in Table B.5, is consistent with the rate constant included in the Master Mechanism. However, the temperature dependence (B or E/R) in the Master Mechanism was changed to 2:1 102 , the value recommended by Atkinson [1994]. Table B.5 Rate constants for the Reaction of Benzene with OH. Rate Constant (298 K) cm3 2.06 x 10,11 molec ,s cm3 1.2 x 10,12 molec ,s cm3 1.23 x 10,12 molec ,s cm3 1.2 x 10,12 molec ,s Temperature Dependence 7.57 x 10,12 exp(-529/T) B = 208 K E/R = 3.0 x 102 K Reference [Atkinson, 1985] [Grosjean, 1991] [Atkinson, 1994], [Atkinson, 1990] [Madronich and Calvert, 1989] The branching ratio for the reaction of C6 H6 with OH recommended by Atkinson [1994] is for the abstraction pathway, which accounts for 5% of the reaction. The H–atom abstraction path was not included in the mechanism created by Madronich and Calvert [1989]. This reaction pathway was added to the mechanism, using the branching ratio and rates recommended by Atkinson [1994]. Benzene + NO3 The reaction of benzene with NO3 was added to the mechanism. The products were based on H–atom abstraction in the presence of oxygen. The rate constant was set to the value recommended by Atkinson [1994]. 180 Hydroxyl-2,4-cyclohexadienyl-6-peroxy As an original product of benzene oxidation by OH, the hydroxyl-2,4-cyclohexadienyl-6-peroxy molecule may: 1) dissociate back to its reactants (benzene and OH), 2) react to form phenol and HO2 , 3) form 2,4-hexadiene-1,6-dial and OH, or 4) isomerize to one of the bicyclic peroxy adducts. The bicyclic peroxy adducts react with O2 to form another set of peroxy radicals, which become alkoxy radicals after the terminal oxygen is removed by NO, eventually resulting in the ring–opened products, glyoxal and butene–1,4–dial. Other products which are produced during O2–addition to benzene include phenol and 2,4–hexadiene–1,6–dial, a straight chain unsaturated dialdehyde [Lay et al., 1996]. In the Master Mechanism, the hydroxyl–2,4–cyclohexadienyl–6–peroxy radical mainly reacts with NO to form the ring opened products glyoxal and butene–1,4–dial, skipping the formation of the peroxy radicals, their rearrangement and transformation to alkoxy radicals. This reaction is assumed to take place in the presence of oxygen, however oxygen is not included explicitly in the reaction. Other ultimate products produced in the mechanism [Madronich and Calvert, 1989] from the reaction of hydroxyl–2,4–cyclohexadienyl–6–peroxy radical include: HO2,NO2 , hr62 (C6 H4 (H)(OH),(H)(OOH)), ro64 (C6 H4 (H)(OH),H(OH)), rk63 (C6 H4 (H)(OH),=O) , and o011(CH3 OH). The master mechanism seems to be consistent with the most recent kinetic data review [Atkinson, 1994]. For this reason, the reaction of hydroxyl-2,4-cyclohexadienyl-6-peroxy (2r61) with oxygen and subsequent reactions were left unaltered. Phenol Phenol, produced from the reaction of benzene with OH, can react with NO3 through H–atom abstraction or with the OH radical either by addition or H–atom abstraction. The main reaction of phenol is OH addition, producing 1,1-benzenediol. The reactions of 1,1-benzendiol are discussed in Section B.1.2.7. The H–atom abstraction either by OH or NO3 produces a phenoxy radical and H2 O or HNO3 , respectively. Phenol + OH The rate constants for the reaction of phenol with OH are listed in Table B.6. The rate constants reported in the literature do not distinguish between the addition and H–atom abstraction reactions. According to Atkinson [1994], the H–atom abstraction accounts for about 9% of the OH reaction with phenol. This is in fairly good agreement with the branching ratio used by Madronich and Calvert [1989], 7.8% for abstraction and 92.2% for addition. The rate constant for the reaction of OH with phenol was changed to the recommendation of Atkinson [1994], 2:63 10,11 . Keeping the same branching ratio as Madronich and Calvert [1989], Kadd = 2:43 10,11 and Kabs = 2:05 10,12 . Atkinson [1994] proposes a temperature dependent rate constant (E/R=405 K), which is incorporated into the mechanism. Over the temperature range given, the rate constant for phenol + OH varies from 3:53 10,11 at 245 K to 2:65 10,11 at 296 K. 181 Table B.6 Rate Constants for the Reaction of Phenol with OH. K (298 K) 2:6 10,11 2:2 10,12 2:6 10,11 2:63 10,11 Temp. Dependence 6:75 10,12 exp(405/T) Reference Master Mechanism Master Mechanism [Grosjean, 1991] [Atkinson, 1994] Notes Add. Abs. Add. + Abs. Add. + Abs., 245-296K Table B.7 Rate Constants for the Reaction of Phenol with NO3 . K (298 K) 3:6 10,12 3:6 10,12 3:92 10,12 3:78 10,12 Temp. Dependence Reference Master Mechanism [Grosjean, 1991] [Atkinson et al., 1992b] [Atkinson, 1994] Notes +/- 35% Phenol + NO3 For the reaction of phenol with NO3 , the rate constants are listed in Table B.7. The rate constant recommended by Atkinson [1994] is based on a unit–weighted average of the rate constants reported in Atkinson et al. [1992b] and Atkinson et al. [1984]. The recommended value is different than that reported previously by Atkinson [1991]. There are no reported temperature dependencies in the literature or in the master mechanism. The rate constant for the reaction of phenol (ro61) with NO3 was set equal to the recommendation of Atkinson [1994], 3:8 10,12. 1,1-benzenediol Radical The 1,1-benzenediol radical reacts either with O2 or NO2 . 1,1-benzenediol + O2 According to Grosjean [1991], reaction of 1,1-benzenediol with O2 results in the trans-addition of O2 . This adduct then reacts with more O2 followed by NO2 , resulting in the ring-opened products, CHOCH=CHCHO and CHOCOOH. The major products formed in the Master Mechanism [Madronich and Calvert, 1989] from the O2 addition to 1,1-benzenediol is 2-nitro-1,1-benzenediol (rk61) and the ring-opened products, CHOCH=CHCHO and CHOCOOH. The mechanism also results in additional products including: C6H4(OH)(OH),(=O) (rk62), 1,1benzenediol (2r62), CH3OH (o011), and (C6H4(OH)(OH),H(OH) (ro65). 1,1-benzenediol + NO2 The reaction of 1,1-benzenediol (6r61) with NO2 results in the formation of 2-nitrophenol and 4-nitrophenol. For simplicity in the Master Mechanism, this reaction results in rv62 (2-nitrophenol) only. As no data were available to suggest the reaction or rate constant as incorrect, this reaction was not altered. The chemistry of nitrophenol formed through this reaction is discussed below. Nitrophenol As a result of the reaction of 1,1-benzenediol with NO2, nitrophenol is formed. According to Grosjean [1991] nitrophenol can react with OH, by addition or H–atom abstraction, or with NO3 by H–atom abstraction. 182 Table B.8 2-nitrophenol (rv62) + OH. K (298 K) not included 2:3 10,13 9:0 10,13 Temp. Dependence none reported none reported none reported K (298 K) not included 3:4 10,13 Temp. Dependence none reported none reported Reference Master Mechanism Grosjean [1991] [Atkinson, 1994] Notes [Grosjean, 1990] Table B.9 4-nitrophenol + OH. Reference Master Mechanism Grosjean [1991] Notes [Grosjean, 1990] Nitrophenol + OH The reaction of OH with nitrophenol may proceed either by addition or H-atom abstraction. The OH addition to nitrophenol results in an adduct. This adduct may react with O2 to produce ring-opened products or react with NO2 resulting in the formation of 2,6dinitrophenol (rv63), an end-product in the Master Mechanism. The H–atom abstraction reaction of nitrophenol with OH produces a nitrophenoxy radical. The nitrophenoxy radical reacts with NO2 which also results in the formation of 2,6-dinitrophenol. The reaction of nitrophenol with OH was not included in the master mechanism [Madronich and Calvert, 1989]. However, it was deemed important to add this reaction. The reaction with the hydroxyl radical occurs during the daytime, while reaction with the nitrate radical occurs mainly during the night, so it is important to include both reactions. The reaction of 2-nitrophenol with OH was added to the mechanism, but the reaction of 4-nitrophenol was not. As shown in Tables B.8 and B.9 the reaction of 4-nitrophenol is two orders of magnitude slower than the reaction with 2-nitrophenol. The reaction of 2-nitrophenol (rv62) with OH was added to the mechanism, using the rate constant recommended by Grosjean [1991], K = 2:3 10,11. The products for this reaction are based on H-atom abstraction: H2O and nitrophenoxy (C6 H3O: ,NO2; 1r62). For simplicity, phenoxy was not included as a product because it produces the same compound that nitrophenoxy (1r62) does, dinitrophenol. Nitrophenoxy (1r62) reacts with NO2 to produce rv63 (2,4-dinitrophenol). The reaction of HO2 with the nitrophenoxy radical (not included in the mechanism proposed by Grosjean [1991]) is included by analogy with the phenoxy radical reaction with HO2; this reaction results in nitrophenol. Furthermore, for simplicity, the reactions of 2-nitrophenol produce 2,4-dinitrophenol, skipping the intermediate adducts and lumping the theoretically formed 2,6dinitrophenol with 2,4-dinitrophenol. While nitroaromatics are not normally considered a significant sink of NOx , the simulated mixing ratios are consistent with those measured in the gas phase at Great Dun Fell, a rural site in Northern England [Lüttke et al., 1997]. At Great Dun Fell, levels of mono-nitrophenols (sum of 2- and 4-nitrophenol) were observed to be 8.7106 –1.6108 molec cm,3 , while 2,4dinitrophenol levels were 3.3105 –2.8108 molec cm,3 . In our simulations, mono-nitrophenols (2-nitrophenol) were less than 3.0108 molec cm,3 , and 2,4-dinitrophenol levels were less than 1.6108 molec cm,3 . 183 Nitrophenol + NO3 For reaction of 2-nitrophenol with NO3, the rate constant reported by Atkinson et al. [1992b] is much lower than that used by Madronich and Calvert [1989], as shown in Table B.10. The rate constant was changed to the recommendation of Atkinson et al. [1992b]. Table B.10 2-nitrophenol (rv62) + NO3 . K (298 K) 3:8 10,12 < 2 10,14 Temp. Dependence none reported none reported Reference Master Mechanism [Atkinson et al., 1992b] Notes B.2 Troe Reactions The troe reactions which were investigated are listed in Table C.19. Thermal Decomposition of NO3 The decomposition of NO3 was removed from the mechanism by placing an “x” in the flag position. DeMore et al. [1997] suggests that this reaction will not occur in the atmosphere because “the barrier to thermal dissociation is 47.3 kcal mol,1.” B.3 Photolysis The updates to the photolysis reactions were limited to absorption cross sections and quantum yields for nitrogen- and oxygen- containing compounds which are treated explicitly by Madronich and Calvert [1989] or added by Williams [1994a]. The absorption cross sections and quantum yields for each compound were compared to values recommended by DeMore et al. [1997] to assess whether there has been a significant change in the photolysis data since the Master Mechanism-Version 2.0 [Madronich and Calvert, 1989] was created. The reviews by Atkinson [1994] and Atkinson et al. [1992b] were used, in that order of preference, for compounds which are not included in DeMore et al. [1997], such as C3 and larger compounds. Photolysis data for many compounds are still not available. In this case, the values used by Madronich and Calvert [1989] were retained If there was a significant change in the absorption cross sections or quantum yields, a combination of interpolation and averaging was used to resolve the recommended values onto Isaksen’s wavelength integration grid. For several compounds the values used in the model RACM [Stockwell et al., 1997] matched those recommended by DeMore et al. [1997], Atkinson [1994], or Atkinson et al. [1992b]. In this case, it was convenient to use Stockwell et al. [1997]’s data because the absorption cross sections and quantum yields were already resolved onto Isaksen’s grid. Table B.11 is a listing of the compounds which were evaluated. The most notable changes— those that require programming—include the addition of PAN photolysis, separation of NO3 pho- 184 tolysis into two channels, addition of temperature dependence for HNO3 , H2O2 , CH2 O, and PAN absorption cross sections (subroutines in jblock.f), and alteration of the temperature dependent expression for calculating ozone quantum yields. Williams [1994a] also made several changes to the Master Mechanism photolysis reactions. The weighting factors of the alkyl nitrates were changed and several new alkyl nitrates were added. However, these changes were not used as discussed in Section B.3.3. The remaining portion of this section is divided according to the following compounds and groups of compounds: Ox , hydroperoxides, odd nitrogen, carbonyls, and acids. Each subsection contains a comparison of available photolysis data for each compound treated explicitly by Madronich and Calvert [1989] in the cross section (rxs.dat) and quantum yield (rqy.dat) data files. B.3.1 Ox Ozone The recommendation for the absorption cross section data for ozone by DeMore et al. [1997], DeMore et al. [1994], and DeMore et al. [1992] is based on WMO [1986]. Because the absorption cross section of ozone was well characterized before the Master Mechanism was created, the values used by Madronich and Calvert [1989] are still valid. There is a new temperature dependent expression for the calculation of ozone quantum yields [Sander et al., 2000]. The new quantum yield of O(1 D) includes a “tail” between 310 and 330 nm. For = 248–300 nm, the new recommended quantum yield is 0.95. For = 300–330 nm, the following temperature dependent expression is recommended: " 4# T 4 " ( , ) 2 # ( , 01 ) 2 02 + a2 (T; ) = a1 exp , exp , !1 300 kT exp , !2 3 " ( , 03) 2 # +a3 exp , + 0:06: kT exp , ! 3 The parameters for the above equation are listed in Table B.12. For = 330–345 nm, a constant temperature independent quantum yield of 0.06 is recommended for atmospheric conditions. Above 345 nm, the quantum yield is zero. The subroutine used to calculate ozone quantum yields (GET O3 QY) was altered to use the recommendation of Sander et al. [2000]. B.3.2 Hydroperoxides Hydrogen Peroxide, H2O2 The absorption cross section data for hydrogen peroxide recommended by DeMore et al. [1997] is the same as in previous evaluations [DeMore et al., 1994; DeMore et al., 1992]. The recommendation is listed at two temperatures, 298 and 355 K, and a 185 Table B.11 Summary of Photolysis Data. Compound O3 H2 O2 methyl hydroperoxide (h011) NO2 NO3 N2 O5 HNO2 HNO3 HNO4 PAN (p021) methyl nitrate (n011) ethyl nitrate (n021) 1-propyl nitrate (n031) 2-propyl nitrate (n032) 1-butyl nitrate (n041) 2-butyl nitrate (n042) 1-pentyl nitrate (n053) 2-pentyl nitrate (n054) 3-pentyl nitrate (n055) CH2 O acetaldehyde (d021) propanal (d031) 1-butanal (d041) 1-methyl propanal (d042) glyoxal (dd21) methyl glyoxal (dk33) acetone (k031) 2-butanone (k041) 3-pentanone (k052) biacetyl (kk43) acrolein (ud34) Cross Section Madronich and Calvert [1989]a DeMore et al. [1997] Madronich and Calvert [1989]a;b Stockwell et al. [1997] Stockwell et al. [1997] Madronich and Calvert [1989]a Stockwell et al. [1997] Stockwell et al. [1997] Madronich and Calvert [1989]a DeMore et al. [1997] Madronich and Calvert [1989]b Madronich and Calvert [1989]b Atkinson et al. [1992b] Atkinson et al. [1992b] 1-propyl nitrate 2-propyl nitrate 1-propyl nitrate 2-propyl nitrate 2-propyl nitrate < 300 Madronich and Calvert [1989] 300 DeMore et al. [1997] Martinez et al. [1992]c Martinez et al. [1992]c Martinez et al. [1992]c Martinez et al. [1992]c Madronich and Calvert [1989]b Stockwell et al. [1997]c Martinez et al. [1992]c Martinez et al. [1992]c Martinez et al. [1992]c Madronich and Calvert [1989]c Madronich and Calvert [1989] a Recommended by DeMore et al. [1997]. b Recommended by Atkinson et al. [1992b]. c Recommended by Atkinson [1994]. Table B.12 Parameters for the O3 Quantum Yield Equation. Index 1 2 3 ai 0.887 2.35 57 oi 302 311.1 313.9 i 820 1190 !i 7.9 2.2 7.4 Quantum Yield Sander et al. [2000] unity, Madronich and Calvert [1989]a unity, Madronich and Calvert [1989]a Madronich and Calvert [1989]a Johnston et al. [1996]a Madronich and Calvert [1989]a unity, Madronich and Calvert [1989] b unity, Madronich and Calvert [1989]b unity, Madronich and Calvert [1989]a DeMore et al. [1997] unity, Madronich and Calvert [1989]b unity, Madronich and Calvert [1989]b unity, Madronich and Calvert [1989]b unity, Madronich and Calvert [1989]b unity, Madronich and Calvert [1989] unity, Madronich and Calvert [1989] unity, Madronich and Calvert [1989] unity, Madronich and Calvert [1989] unity, Madronich and Calvert [1989] Madronich and Calvert [1989]a Madronich and Calvert [1989]c Atkinson [1994] Madronich and Calvert [1989] Atkinson [1994] Madronich and Calvert [1989]b Atkinson et al. [1992b] Stockwell et al. [1997]c Madronich and Calvert [1989]c Madronich and Calvert [1989] 186 temperature dependent expression is given for =260–350 nm and T=200–400 K: 7 X An n + (1 , ) (; T ) 1021 = = [1 + exp( n=0 4 X n=0 ,1265=T )],1 Bn n (B.73) (B.74) where T is temperature in K, is wavelength in nm, and An and Bn are constants. This expression is based on the work of Nicovich and Wine [1988] which was published after the evaluations used by Madronich and Calvert [1989]. The difference between the values at 298 and 355 K ranged from 1–23% difference, depending on wavelength. Because the temperature in typical arctic outflow simulations is about 50 degrees cooler than the listed 298 values, a subroutine was added to calculate the temperature dependent H2O2 cross sections. The quantum yield of H2O2 is believed to be unity [DeMore et al., 1997], which is the value used by Madronich and Calvert [1989]. Methyl Hydroperoxide, CH3 OOH (h011) The recommendation of DeMore et al. [1997] remains unchanged from the previous evaluations [DeMore et al., 1994; Atkinson et al., 1992b]. While these evaluations are all based on a study conducted by Vaghjiani and Ravishankara [1989], Atkinson et al. [1992b] provides a more complete list of values. As shown in Figure B.1, the values used by Madronich and Calvert [1989] are equal to those recommended by Atkinson et al. [1992b] except at the peak, where Madronich and Calvert [1989] have a lower value due to averaging over wavelength intervals. The absorption cross section used by Madronich and Calvert [1989] is satisfactory. The quantum yield of CH3 OOH is believed to be unity [DeMore et al., 1997], which is the value used by Madronich and Calvert [1989]. Other Hydroperoxides The photolysis reactions for a number of nitrate containing hydroperoxides (hn35–hn5f) were added by Williams [1994a]. These hydroperoxides were formed from alkyl nitrate reactions introduced into the mechanism by Williams [1994a]. As was done for the smaller hn** compounds, the absorption cross sections are set equal to methyl hydroperoxide (h011) and the quantum yields are set to unity. B.3.3 Odd Nitrogen Nitrogen Dioxide, NO2 The current recommendation for the NO2 absorption cross section [DeMore et al., 1997] is unchanged from the earlier recommendation [DeMore et al., 1994]. This recommendation is based on work by Schneider et al. [1987] for = 200–274 nm and Davidson et al. [1988] for = 274–420 nm and includes the following temperature dependence in the wavelength range of 274–420 nm: = (0C ) + A T (B.75) 187 Figure B.1 CH3 OOH Absorption Cross Section. where A is the temperature coefficient (wavelength dependent) and T is temperature ( C). There are no limits given for the temperature range. As the temperature increases, the absorption cross section decreases. However, the effect of temperature is negligible: even with a 50 decrease in the temperature, there is less than a 2.5% change in the absorption cross sections. Figure B.2 shows that there are slight differences between Madronich and Calvert [1989] and DeMore et al. [1997] (T=0 C), while Stockwell et al. [1997] and DeMore et al. [1997] are equal. The absorption cross section data used by Stockwell et al. [1997] is based on the recommendation of DeMore et al. [1994]. The model was updated to include the non–temperature dependent NO2 absorption cross sections used by Stockwell et al. [1997]. The NO2 quantum yields recommended by DeMore et al. [1997] remain unchanged from recent evaluations [DeMore et al., 1994; DeMore et al., 1992]. As shown in Figure B.3, the values used by Madronich and Calvert [1989] match those used by Stockwell et al. [1997], and recommended by DeMore et al. [1997]. In the absence of new data, the NO2 quantum yield data given by Madronich and Calvert [1989]was used. NO3 The NO3 absorption cross sections recommended by DeMore et al. [1997] remain unchanged from the earlier recommendation [DeMore et al., 1994]. The recommended cross section at 662 nm was determined from the studies by Marinelli et al. [1982], Ravishankara and Wine [1983], Burrows et al. [1985], Ravishankara and Mauldin [1986], Sander [1986], Cantrell et al. [1987], and Canosa-Mas et al. [1987]. While for = 600–670 nm, the absorption cross section values are based only on Ravishankara and Mauldin [1986], Sander [1986], and Canosa-Mas et al. [1987]. 188 Figure B.2 NO2 Absorption Cross Section. Figure B.3 NO2 Quantum Yield. 189 Figure B.4 NO3 Absorption Cross Section. The absorption cross section values used in the model RACM [Stockwell et al., 1997] are taken from the review by Wayne et al. [1991]. The values recommended in the review [Wayne et al., 1991] are based on Sander [1986] and normalized to the absorption cross section at 662 nm from the studies by Ravishankara and Mauldin [1986], Sander [1986], Cantrell et al. [1987], and Canosa-Mas et al. [1987]. The NO3 absorption cross sections used by Stockwell et al. [1997] are slightly higher than those used by Madronich and Calvert [1989], as shown in Figure B.4. Both Stockwell et al. [1997] and Madronich and Calvert [1989] have much lower peaks than recommended by DeMore et al. [1994]. This is due to the intervals that are reported by the different sources. DeMore et al. [1994] report absorption cross section in 1 nm intervals from 600 to 670 nm, while Stockwell et al. [1997] and Madronich and Calvert [1989] report values at 5–10 nm intervals in this wavelength range. The model was altered to use the NO3 absorption cross sections from Stockwell et al. [1997], because their values matched the average values of DeMore et al. [1994] better than the values used by Madronich and Calvert [1989]. There are two channels for the NO3 photolysis reaction [DeMore et al., 1997; Stockwell et al., 1997; Wayne et al., 1991]: A NO + O ! 2 B NO3 + hv ! NO2 + O NO3 + hv (B.76) (B.77) In the Master Mechanism these channels are simulated with a constant branching ratio: NO3 + hv ! 0:89NO2 + 0:11NO + 0:89O: (B.78) 190 Figure B.5 NO3 QY: Johnston et al., 1996 vs Madronich. DeMore et al. [1997] have a new recommendation for NO3 photolysis rates for both channels. The photolysis rates were are taken from Johnston et al. [1996] and calculated for the stratosphere with a solar zenith angle of zero. For wavelength specific quantum yield data, DeMore et al. [1997] recommend the tabulation by Johnston et al. [1996], in which quantum yields are reported for =585–640 nm at 190, 230, and 298K. Comparing the quantum yields for the sum of channels from Johnston et al. [1996] at 298 K to Madronich and Calvert [1989]’s quantum yields for one channel (Figure B.5) the values from Johnston et al. [1996] drop to zero in the same wavelength range. However, this drop occurs more rapidly at first then slows creating a curve rather than the straight line representation as in Madronich and Calvert [1989], resulting in a maximum difference of 60%. The model was changed to include both NO3 photolysis channels and the quantum yields from Johnston et al. [1996] which were averaged and centered on Isaksen’s grid wavelengths. N2 O5 The recommendation for N2 O5 cross sections in DeMore et al. [1997] is the same as the earlier recommendation [DeMore et al., 1994], and is equal to the values used by Madronich and Calvert [1989]. For N2 O5 quantum yields, the recommendation of DeMore et al. [1997] has not changed from earlier recommendations [DeMore et al., 1994; DeMore et al., 1992]. There are two channels for N2 O5 photodissociation: A ! B N2 O5 + hv ! N2 O5 + hv NO3 + NO + O(3P) (B.79) NO3 + NO2 (B.80) 191 Figure B.6 N2 O5 Quantum Yield. The quantum yield for NO3 production is near unity and the yields for O and NO increase at shorter wavelengths, while yields for NO2 decrease. Ravishankara et al. [1986] report O quantum yields at four wavelengths. Three of these four quantum yields are less than 0.2% different than the values used by Madronich and Calvert [1989], and the fourth quantum yield is 10% different. Figure B.6, shows the N2O5 quantum yields for channel A. HNO2 The recommendation of DeMore et al. [1997] for HNO2 absorption cross sections is the same as earlier recommendations [DeMore et al., 1994; DeMore et al., 1992]. This recommendation was first made by DeMore et al. [1992] and is based on the work of Bongartz et al. [1991]. Stockwell et al. [1997] use the values recommended by DeMore et al. [1994]. Figure B.7 shows that there are differences at the peaks between Madronich and Calvert [1989] and DeMore et al. [1997], while Stockwell et al. [1997] and DeMore et al. [1997] are equal. Because Stockwell et al. [1997] matches DeMore et al. [1997], the model was changed to include the HNO2 absorption cross sections used by Stockwell et al. [1997]. Atkinson et al. [1992b] report an HNO2 quantum yield of unity, which is the value used by Madronich and Calvert [1989]. HNO3 DeMore et al. [1997]’s recommendation for the HNO3 absorption cross section is the same as the earlier recommendation [DeMore et al., 1994] except at = 314 nm. The following temperature dependence for the absorption cross section of HNO3 was first included in DeMore et 192 Figure B.7 HNO2 Absorption Cross Section. al. [1994]’s recommendation: (; T ) = (; 298) exp[B() (T , 298)] (B.81) where B is a wavelength dependent constant and T is temperature in K. The effect of temperature is important for the temperature ranges experienced during arctic outflow events: at 250 K the HNO3 absorption cross section is negligible. A subroutine was added to jblock.f to calculate the temperature dependent absorption cross section for HNO3 based on the data reported by DeMore et al. [1997]. Atkinson et al. [1992b] report an HNO3 quantum yield of unity, which is the value used by Madronich and Calvert [1989]. HNO4 The recommendation for the absorption cross section for HO2 NO2 by DeMore et al. [1997] is the same as the earlier recommendations [DeMore et al., 1994; DeMore et al., 1992]. As shown in Figure B.8, the values used by Madronich and Calvert [1989] are equal to the recommended values [DeMore et al., 1997]. DeMore et al. [1997] recommend quantum yields of 0.33 for the production of OH and NO3 and a yield of 0.67 for the production of HO2 and NO2 . These quantum yields are taken into account by Madronich and Calvert [1989] as stoichiometric coefficients in the mechanism. HNO4 + hv ! 0:67HO2 + 0:33OH + 0:33NO3 + 0:67NO2 (B.82) 193 Figure B.8 HNO4 Absorption Cross Section. PAN, CH3C(O)OONO2 (p021) The photodissociation of PAN is a new entry in DeMore et al. [1997]. It is believed to proceed as follows: !A B CH3 C(O)OONO2 + hv ! CH3 C(O)OONO2 + hv CH3C(O)O2 + NO2 (B.83) CH3C(O)O + NO3 (B.84) The recommended absorption cross section [DeMore et al., 1997] has the following temperature dependence: T) ) ln( ((298 ) = B (T , 298) (B.85) (B.86) Rearranging this becomes, (T ) = (298) exp[B (T , 298)] (B.87) where B is a wavelength dependent constant and T is temperature in K. The temperature dependence applies for T = 250–289 K. As shown in Figure B.9, at 250 K the absorption cross section is negligible, it is on the order of 10 ,60 near the peak at 200 nm. The model was altered to use the temperature-dependent PAN cross sections from DeMore et al. [1997]. A combination of averaging and interpolation were used to resolve the data, (298K ) and B, onto Isaksen’s wavelength integration grid. A subroutine (GET p021 XS) was added to calculate the temperature dependent absorption cross section as a function of wavelength. 194 Figure B.9 PAN Absorption Cross Section. The quantum yield for channel A is 0.83 0.09, while for channel B the quantum yield is 0.3 0.1 [DeMore et al., 1997]. To conserve mass, the quantum yields were set to 0.77 and 0.23 for channels A and B, respectively [Mazely et al., 1997]. Methyl Nitrate, CH3ONO2 (n011) Atkinson [1994]’s recommendation for the absorption cross section for methyl nitrate is the same as the earlier recommendation [Atkinson et al., 1992b]. This recommendation is based on work done by Roberts and Fajer [1989]. The absorption cross section used by Madronich and Calvert [1989] for methyl nitrate matches Atkinson et al. [1992b]’s recommendation quite well as shown in Figure B.10. In the absence of data indicating the values are in error, use the absorption cross sections given by Madronich and Calvert [1989] for methyl nitrate. The quantum yield for methyl nitrate is presumed to be equal to unity due to a lack of structure in the absorption spectra [Atkinson et al., 1992b]. Ethyl Nitrate, CH3CH2 ONO2 (n021) The recommendation [Atkinson, 1994] for ethyl nitrate absorption cross sections is equal to the earlier recommendation of Atkinson et al. [1992b], which is based on the studies of Turberg et al. [1990] and Roberts and Fajer [1989]. The absorption cross section for ethyl nitrate added by Williams [1994a] is 1.33 times the cross section of methyl nitrate (n011). Figure B.11 shows that within the wavelength range of 270–330 nm the approximation is similar to the values recommended by Atkinson et al. [1992b]. However, Atkinson et al. [1992b] provide recommended values for a much larger range, 185–330 nm, as shown in Figure B.12. Below 195 Figure B.10 Methyl Nitrate Absorption Cross Section, logarithmic. Figure B.11 Ethyl Nitrate Absorption Cross Section. 196 Figure B.12 Ethyl Nitrate Absorption Cross Section, logarithmic. 260 nm the cross section values are much higher (approximately 2 orders of magnitude) than those used above 260 nm. However, the contribution of the absorption cross section for wavelengths less than 260 nm to the rate of photolysis (J value) is negligible as demonstrated for propyl nitrate below. Therefore the approximation (1.33*n011 xs) added by Williams [1994a] was not altered. While no recommendation has been made, the quantum yield for ethyl nitrate has been assumed to be equal to unity due to a lack of structure in the absorption spectra [Atkinson et al., 1992b]. This is supported by measurements of the rate of NO2 formation resulting from ethyl nitrate photolysis [Luke and Dickerson, 1988; Luke et al., 1989] and calculated rates assuming = 1 for = 290– 340 nm [Atkinson et al., 1992b]. Propyl Nitrate, C3H7 ONO2 The recommendation of Atkinson et al. [1992b] is unchanged in Atkinson [1994]. The absorption cross sections for both n- and i-propyl nitrate are based on work done by Turberg et al. [1990] and Roberts and Fajer [1989]. In the model RACM, Stockwell et al. [1997] use a mixture of 20% n-propyl and 80% i-propyl nitrate, to represent the absorption cross section of organic nitrates. The cross sections used by Stockwell et al. [1997] were based on Atkinson [1994]. The cross section of n-propyl nitrate is shown in Figures B.13 and B.14. The model was altered to use the absorption cross sections recommended by Atkinson et al. [1992b] for n- and i-propyl nitrate. While no recommendation has been made, the quantum yield for n-propyl nitrate has been assumed to be equal to unity due to a lack of structure in the absorption spectra [Atkinson et al., 1992b]. This is supported by measurements of the rate of NO2 formation resulting from n-propyl 197 Figure B.13 Propyl Nitrate Absorption Cross Section, logarithmic. Figure B.14 Propyl Nitrate Absorption Cross Section, logarithmic. 198 nitrate photolysis [Luke and Dickerson, 1988; Luke et al., 1989] and calculated rates assuming = 1 for = 290–340 nm [Atkinson et al., 1992b]. There are no measurements for i-propyl nitrate photodissociation products or quantum yields; however, the quantum yield is assumed to be equal to 1 for =290–330 nm [Atkinson et al., 1992b]. Other Alkyl Nitrates No recommendations are provided by DeMore et al. [1997], Atkinson [1994], or Atkinson et al. [1992b] for the photolysis parameters for propyl, pentyl, or larger alkyl nitrates. For the absorption cross sections of n-butyl nitrate (n041) Williams [1994a] used 2.0 times the cross section of methyl nitrate (n011). Several investigators have noticed trends in the absorption cross section of alkyl nitrates. Roberts and Fajer [1989] note an increase in absorption cross section both with increasing carbon number and degree of substitution. Williams [1994b] also notes an increase in the cross section with increasing carbon number, but suggested that this increase becomes smaller with each additional carbon due to the inductive effect. Additionally, Williams [1994b] observed that the cross sections of the primary alkyl nitrates are similar, and suggested that this may also be the case for secondary nitrates. Based on the general trends of carbon number and degree of substitution, to obtain a lower limit for the absorption cross sections of alkyl nitrates larger than C3 without recommendations, the primary alkyl nitrates (n041 and n053) are set equal to those of n-propyl nitrate (n031) as recommended by Atkinson et al. [1992b]. The absorption cross section for secondary (n042, n054, and n055) and tertiary (n043) alkyl nitrates are set equal to those of i-propyl nitrate (n032) cross section that was recommended by Atkinson et al. [1992b]. In the absence of data for butyl and pentyl nitrates, the quantum yields were set equal to unity similar to the smaller alkyl nitrates. Alkyl Nitrites Methyl (w012) and ethyl nitrite (w012) were added to the master mechanism. As alkyl nitrites photolyze rapidly, photolysis reactions were added for these compounds. The absorption cross sections were set equal to 2 times the cross section for HNO2 and the quantum yield was set equal to unity. This results in cross section values similar to the methyl nitrite cross section measured by Taylor et al. [1980], as shown in Figure B.15. B.3.4 Carbonyls B.3.4.1 Aldehydes Formaldehyde, CH2 O The recommendation by DeMore et al. [1997] for formaldehyde absorption cross sections is the same as the earlier recommendation [DeMore et al., 1994]. The recommendation by DeMore et al. [1997] is based on Cantrell et al. [1990] and is temperature dependent. Figure B.16 shows that the difference between the cross sections at 223 and 298 C is minimal at most wavelengths. However, the percent difference is larger than 10 % and as large as 199 Figure B.15 Methyl Nitrite Absorption Cross Section. 95% at most of the peaks, minima, and for recommended temperature dependence: > 335 nm. Therefore it is important to include the (T ) = A + B 10,3T (B.88) where A and B are wavelength specific temperature dependent constants, T is temperature in C, and (T) is the cross section at T, in 10,20 cm2 . This temperature dependent expression is valid only for temperatures between -50 and 20C and for wavelengths between 300 and 360 nm. Figure B.17 compares formaldehyde absorption cross sections used by Madronich and Calvert [1989] and Stockwell et al. [1997] to the recommendation of DeMore et al. [1997]. Below 300 nm, the values used by Madronich and Calvert [1989] are slightly lower than those used in RACM [Stockwell et al., 1997]. The values used by Madronich and Calvert [1989] are apparently based on Moortgat et al. [1983] and Bass et al. [1980], which are the sources of the recommendation of DeMore et al. [1997]. Stockwell et al. [1997] use only the work by Moortgat et al. [1983] for wavelengths less than 300 nm. Comparing the 10 nm averages of Bass et al. [1980] and Moortgat et al. [1983], as listed in Rogers [1990], Bass et al. [1980] is slightly lower than Moortgat et al. [1983], which would explain the difference between Stockwell et al. [1997] and Madronich and Calvert [1989]. The Master Mechanism was changed to include the temperature dependent expression from DeMore et al. [1997] for = 300–360 nm and to use Madronich and Calvert [1989] for < 300 nm. The recommendation for formaldehyde quantum yields has not changed in the most recent reviews [DeMore et al., 1997; DeMore et al., 1994; DeMore et al., 1992] and is based on an 200 Figure B.16 CH2 O Absorption Cross Section as a Function of Temperature. Figure B.17 CH2 O Absorption Cross Section. 201 Figure B.18 CH2 O Channel A Quantum Yield. evaluation of data from the late 1970s performed by Madronich in 1991 [DeMore et al., 1997]. There are two product channels for the photodissociation of formaldehyde: A HCO + H CH2O + hv ! B CO + H CH2O + hv ! 2 (B.89) (B.90) The quantum yield data for channel B is temperature and pressure dependent for > 330 nm. Stockwell et al. [1997] use quantum yields from Atkinson et al. [1994] for < 300 nm, and from DeMore et al. [1994] for > 300 nm. Since Figures B.18 and B.19 show good agreement between Madronich and Calvert [1989], DeMore et al. [1997], and Stockwell et al. [1997] for the quantum yields of channel A and B, respectively, for wavelengths greater than 270 nm, the quantum yields for formaldehyde in the Master Mechanism were not altered. Acetaldehyde, CH3 CHO, (d021) DeMore et al. [1997] does not include a recommendation for acetaldehyde or any of the larger carbonyls. Atkinson [1994]’s recommendation for the cross section of acetaldehyde is based on the work of Martinez et al. [1992] and supersedes the recommendation of Atkinson et al. [1992b]. In the model RACM [Stockwell et al., 1997], the chemistry of the compound ALD is treated as acetaldehyde and the absorption cross section are taken from Martinez et al. [1992]. Figure B.20 shows that the difference between the acetaldehyde absorption cross sections of Madronich and Calvert [1989] and Martinez et al. [1992] is at the peak at 210 nm. Madronich and 202 Figure B.19 CH2 O Channel B Quantum Yield. Calvert [1989] include a small peak near 210 nm, which is not present in the data from Martinez et al. [1992]. This small peak near 200 nm is about 0.5% the size of the main peak around 300 nm, and has a negligible effect on the J values. At the main peak near 290 nm, Martinez et al. [1992] have a double peak which is approximately 10% larger than the values used by Madronich and Calvert [1989]. To be consistent with the higher aldehydes and to check the method used to resolve the data onto Isaksen’s wavelength grid, the Master Mechanism was changed to use the absorption cross section data from Martinez et al. [1992]. To resolve the absorption cross section values given by Martinez et al. [1992] onto Isaksen’s grid, a combination of interpolation and averaging was used. Linear interpolation was used if there were fewer data points than grid points. If there was more than one point from Martinez et al. [1992] in a grid interval, then the cross sections were averaged and centered over the intervals. As shown in Figure B.21, the values which were generated match those used by Stockwell et al. [1997] with 5.2% difference, except at the outer edge of the peak (below 203 nm and above 330 nm). The quantum yield data for acetaldehyde recommended by Atkinson [1994] is the same as the earlier recommendation [Atkinson et al., 1992b], and is based on the work of Atkinson and Lloyd [1984]. In the model RACM, Stockwell et al. [1997] use the recommendation from Atkinson [1994]. As shown in Figure B.22, the quantum yield data for Stockwell et al. [1997] is very close to that used by Madronich and Calvert [1989] for > 265 nm. While Stockwell et al. [1997] begins to rise from zero about 10 nm after Madronich and Calvert [1989], no information is provided for the wavelengths where they differ. Note that these differences occur at low wavelengths ( < 265 nm), 203 Figure B.20 CH3 CHO Absorption Cross Section. Figure B.21 CH3 CHO Absorption Cross Section. 204 Figure B.22 CH3 CHO Quantum Yield. so the impact on the J values are negligible. In the absence of new data, the quantum yield data given by Madronich and Calvert [1989] for acetaldehyde was used. Propanal, CH3 CH2CHO, (d031) Atkinson [1994] recommends the absorption cross section from Martinez et al. [1992] for propanal. Figure B.23 shows that Madronich and Calvert [1989] and Martinez et al. [1992] use similar cross sections. However, Martinez et al. [1992] has a double peak which is shifted slightly toward longer wavelengths, whereas Madronich and Calvert [1989] have a single peak. To be consistent with the other carbonyls, the model was altered to use the absorption cross sections from Martinez et al. [1992] resolved onto Isaksen’s grid for propanal. The quantum yields for propanal used by Madronich and Calvert [1989] are equal to acetaldehyde quantum yields (channel A). The recommendation of Atkinson [1994] refers to the earlier evaluation [Atkinson et al., 1992b], and is based on the work of Heicklen et al. [1986] who report the following quantum yields at 298K: 0.89 at 294 nm, 0.85 at 302 nm, 0.50 at 313 nm, 0.26 at 325 nm, and 0.15 at 334 nm. Figure B.24, shows the approximation used by Madronich and Calvert [1989] is significantly different than the recommendation of Atkinson et al. [1992b]. The model was altered to treat the quantum yield of propanal explicitly using the values recommended by Atkinson et al. [1992b] and the pressure dependence of formaldehyde. 1-Butanal, CH3 CH2CH2 CHO (d041) Atkinson [1994] recommends the cross section data from Martinez et al. [1992] for 1-butanal. The values used by Madronich and Calvert [1989] have a smaller peak than recommended by Martinez et al. [1992], as shown in Figure B.25. The model 205 Figure B.23 Propanal (d031) Absorption Cross Section. Figure B.24 Propanal (d031) Quantum Yield. 206 Figure B.25 n-Butanal (d041) Absorption Cross Section. was altered to use n-butanal cross sections from Martinez et al. [1992]. According to Atkinson [1994], the quantum yields of n-butanal have been studied by Forgeteg et al. [1978] and Forgeteg et al. [1979]. For the production of C2 H4 and CH3 CHO (channel B), the quantum yield is reported to be 0.18 at 313 nm, while for the production of C3 H7 and HCO (channel A) the quantum yield is 0.3 at 313 nm. Madronich and Calvert [1989] assume the quantum yields to be 0.25 and 0.75 times the quantum yield of acetaldehyde, respectively. For the production of C3 H7 and HCO (channel A) the quantum yield is 0.3 at 313 nm, while for the production of C2 H4 and CH3 CHO (channel B), the quantum yield is reported to be 0.18 at 313 nm. Madronich and Calvert [1989] assume the quantum yield for channel A to be 0.75 times the quantum yield of acetaldehyde and 0.25 times acetaldehyde for channel B. At the single point reported, the values used by Madronich and Calvert [1989] are low (0.17 and 0.06). The model was altered to use the quantum yield of acetaldehyde used by Madronich and Calvert [1989], scaled to the values recommended by Atkinson [1994] at 313 nm. The new weighting factors are 1.32 for channel A and 0.791 for channel B. Figures B.26 and B.27 compare the values used by Madronich and Calvert [1989] and the new quantum yields for channels A and B, respectively. 2-Butanal, CH3CH(CH3)CHO (d042) Atkinson [1994] recommends the cross section values measured by Martinez et al. [1992]. Figure B.28 shows that the values used by Madronich and Calvert [1989] are nearly identical to Martinez et al. [1992], except at the peak near 190 nm. The model was altered to use the i-butanal cross sections from Martinez et al. [1992]. 207 Figure B.26 n-butanal (d041) Quantum Yield, Channel A. Figure B.27 n-butanal (d041) Quantum Yield, Channel B. 208 Figure B.28 i-Butanal (d042) Absorption Cross Section. Atkinson [1994] reports the quantum yields of i-butanal have been measured by Desai et al. [1986]. For the production of (CH3 )2 CH and HCO, the quantum yields were reported to be: 0.2 at 253.7 nm, 0.45 at 280.3 nm, 0.55 at 302.2 nm, 0.88 at 312.8 nm, 0.88 at 326.1 nm, and 0.69 at 334.1 nm. The quantum yields used by Madronich and Calvert [1989] are equal to the acetaldehyde values. Figure B.29, shows that the approximation used by Madronich and Calvert [1989] is significantly different than that measured by Desai et al. [1986]. The model was altered to treat the quantum yield of propanal explicitly using the values measured by Desai et al. [1986] resolved on Isaksen’s wavelength grid. Glyoxal, CHOCHO (dd21) The recommendation from Atkinson et al. [1992b] is the same as their previous evaluation [Atkinson et al., 1989b] and is based on the work of Plum et al. [1983]. In the model RACM, Stockwell et al. [1997] take the absorption cross sections for glyoxal from Atkinson et al. [1992b]. Figure B.30 shows that Stockwell et al. [1997] and Madronich and Calvert [1989] have the same values while Atkinson et al. [1992b]’s recommendation is slightly different. As this difference is due to averaging over the given wavelength intervals, the glyoxal absorption cross sections used by Madronich and Calvert [1989] are retained. The effective quantum yield for glyoxal reported by Plum et al. [1983] is 0.029 [Atkinson et al., 1992b]. This quantum yield only applies to tropospheric conditions for = 325–470 nm. The quantum yield measured by Langford and Moore [1984] at 308 nm is recommended for < 325 nm [Atkinson et al., 1992b]. Because the sum of quantum yields used by Madronich and Calvert [1989] ( = 0:02877) is equal to that measured by Plum et al. [1983], the quantum yields from Madronich 209 Figure B.29 Iso-butanal (d042) Quantum Yield. Figure B.30 CHOCHO Absorption Cross Section. 210 and Calvert [1989] for glyoxal were used. Methylglyoxal, CH3C(O)CHO (dk33) The recommendation of Atkinson [1994] for the absorption cross section of methylglyoxal remains the same as the earlier recommendation [Atkinson et al., 1992b]. This recommendation is based on the work of Meller et al. [1991]. Stockwell et al. [1997] uses Atkinson [1994] and Staffelbach et al. [1995]. Figure B.31 indicates that the absorption cross section for Stockwell et al. [1997] matches Atkinson et al. [1992b] and is significantly larger than the absorption cross sections used by Madronich and Calvert [1989]. The model was altered to use the methylglyoxal cross sections used by Stockwell et al. [1997]. Figure B.31 CH3 C(O)CHO Absorption Cross Section. The recommendation of Atkinson [1994] for the quantum yield of methylglyoxal remains unchanged from the earlier recommendation [Atkinson et al., 1992b]. This recommendation is based on the work of Plum et al. [1983], who measured the rate of methylglyoxal photolysis. The recommendation of Atkinson et al. [1989b] is also based on Plum et al. [1983], however, the quantum yields recommended by Atkinson et al. [1989b] and Atkinson et al. [1992b] are not equal, due to the different recommendations they make for the absorption cross sections. To remain consistent with the measurements of Plum et al. [1983], Atkinson et al. [1992b] recommend the quantum yield be decreased by a factor of 2 to offset the increased absorption cross sections. The model was altered to reflect the recommendation of Atkinson et al. [1992b]. Other Aldehydes No recommendations were made for benzaldehyde (dr71) by DeMore et al. [1997], Atkinson [1994], or Atkinson et al. [1992b]. In the absence of new data, the values used by 211 Figure B.32 Acetone (k031) Absorption Cross Section. Madronich and Calvert [1989] were not changed. B.3.4.2 Ketones Acetone, CH3COCH3 (k031) Atkinson [1994] recommends the work of Martinez et al. [1992] for the absorption cross section of acetone. Stockwell et al. [1997] also use the cross sections from Martinez et al. [1992]. As shown in Figure B.32, Madronich and Calvert [1989] have a larger peak near 280 nm than Martinez et al. [1992] and Stockwell et al. [1997]. The model was altered to use the absorption cross sections measured by Martinez et al. [1992] for acetone. The recommendation for quantum yield data for acetone by Atkinson [1994] and Atkinson et al. [1992b] are based on Meyrahn et al. [1986]. Stockwell et al. [1997] use the recommendation of Atkinson [1994], which is significantly different than the constant value used by Madronich and Calvert [1989], as shown in Figure B.33. The acetone quantum yield from Stockwell et al. [1997], which matches the recommendation of Atkinson et al. [1992b], was used. 2-butanone, CH3CH2 COCH3 (k041) Atkinson [1994] recommends Martinez et al. [1992] where the absorption cross section for 2-butanone was measured and tabulated for the wavelength region 200–330 nm. Figure B.34 shows that Madronich and Calvert [1989] have a slightly higher peak near 280 nm than Martinez et al. [1992]. The model was altered to use absorption cross section of Martinez et al. [1992] for 2-butanone. 212 Figure B.33 Acetone Quantum Yield. Figure B.34 2-Butanone (k041) Absorption Cross Section. 213 Figure B.35 3-pentanone (k052) Absorption Cross Section. According to Atkinson [1994], there are no data available for the photodissociation quantum yields for the higher ketones. In the absence of new data, the values used byMadronich and Calvert [1989] were not changed. 3-Pentanone, CH3CH2 COCH2CH3 (k052) Atkinson [1994] recommends the absorption cross section values measured by Martinez et al. [1992]. Figure B.35 shows that Martinez et al. [1992] is significantly larger than Madronich and Calvert [1989] at both peaks. The model was altered to use the absorption cross sections measured by Martinez et al. [1992] for 3-pentanone. According to Atkinson [1994], there are no data available for the photodissociation quantum yields for the higher ketones. In the absence of new data, the pentanone quantum yields used by Madronich and Calvert [1989] were not changed. Biacetyl, CH3 COCOCH3 (kk43) Atkinson [1994] recommends the work of Plum et al. [1983] for the cross section of biacetyl. As this source was published prior to the creation of the Master Mechanism, the biacetyl absorption cross sections from Madronich and Calvert [1989]was used. The quantum yield of biacetyl determined by Plum et al. [1983] is 0.158 for 325 nm [Atkinson, 1994]. While for = 280–330 nm, the average quantum yield derived by Cox et al. [1980] is 0.98 0.15. The quantum yield used by Madronich and Calvert [1989] is equal to 0.158. As both of the studies were published in the early 1980s and the values used by Madronich and Calvert [1989] are equal to the values measured by Plum et al. [1983], the biacetyl quantum yield 214 Figure B.36 Acrolein Absorption Cross Section. from Madronich and Calvert [1989] was used. B.3.4.3 Unsaturated Carbonyls Acrolein, CH2=CHCHO (ud34) There are no recommendations for the cross section of acrolein in Atkinson [1994], Atkinson et al. [1992b] or DeMore et al. [1997]. In the model RACM [Stockwell et al., 1997], the compound MACR represents methacrolein and other unsaturated monoaldehydes. However, the absorption cross section for MACR is treated as acrolein by Stockwell et al. [1997] and is based on the work of Gardner et al. [1987]. Figure B.36 shows that the values used by Stockwell et al. [1997] are very similar to the absorption cross sections used by Madronich and Calvert [1989], except at the peak near 230 nm. Because this peak is also reported in Gardner et al. [1987], it appears that Stockwell et al. [1997] didn’t include the peak due to its negligible effect on the J values. The absorption cross sections from Madronich and Calvert [1989] were retained. The quantum yield data used by Stockwell et al. [1997] is based on data measured by Gardner et al. [1987]. These values match the quantum yield data used by Madronich and Calvert [1989]. In the absence of new data, the quantum yield data given by Madronich and Calvert [1989] for acrolein were not changed. 215 Other Unsaturated Carbonyls No recommendations were found for the following unsaturated carbonyls treated explicitly by Madronich and Calvert [1989]: CH3 COCOCH3 (kk43), CHOCH=CHCHO (ud41), CH3 COCH=CHCHO (ud51), and CHOCH=C(CH3 )CHO (ud52). In the absence of new data, the values used by Madronich and Calvert [1989] were not changed. B.3.5 Acids No recommendations were found for the following acids treated explicitly by Madronich and Calvert [1989]: pyruvic acid (ak33), glyoxalic acid (ad21), and oxalic acid (aa21). In the absence of new data, the values used by Madronich and Calvert [1989]were not changed. Appendix C Mechanism Revisions: Tables This appendix contains the tables of revised rate parameters discussed in Appendix B. 216 217 Table C.1 Odd Oxygen Reactions. Reaction i O3 + O3P ! 2.00 O2 i O2 + O3P + M ! O3 + M u C2H2 + O3P ! ? A i O3 + O1D ! 2.00 O2 k298 8.0E-15 6.1E-34 1.4E-13 1.2E-10 E/R 2.1E+03 -6.8E+02 1.6E+03 0.0E+00 i O3 + O1D ! O2 +2.00 O3P i H2O + O1D ! 2.00 HO iXN2 + O1D + M ! N2O + M i N2 + O1D ! N2 + O3P i O2 + O1D ! O2 + O3P i CO2 + O1D ! CO2 + O3P i H2 + O1D ! HO + H A c CH4 + O1D ! CH3 + HO 1.2E-10 2.2E-10 3.5E-37 2.6E-11 4.0E-11 1.1E-10 1.1E-10 1.4E-10 0.0E+00 0.0E+00 -1.8E+02 -1.1E+02 -7.0E+01 -1.2E+02 0.0E+00 0.0E+00 c CH4 + O1D ! CH2O + H2 m NH3 + O1D ! NH2 + HO l CL2+ O1D ! 0.25 CL2 + 0.75 CLO + 0.75 CL + 0.25 O3P l ld12+ O1D ! 2.00 ? f HF+ O1D ! F + HO f fl11+ O1D ! 2.00 ? A f CF2O+ O1D ! CO2 + F2 1.4E-11 2.5E-10 2.8E-10 3.6E-10 1.4E-10 1.9E-10 2.2E-11 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 f CF2O+ O1D ! COF2+ O3P b HBR + O1D ! 0.80 HBR + 0.20 BR + 0.20 HO + 0.80 O3P 1 l HCL + O1D ! 0.20 HCL+0.46 CLO + 0.46 H + 0.20 O3P 2 l HCL + O1D ! 1.34 CL + 1.34 HO 5.2E-11 1.5E-10 7.5E-11 7.5E-11 0.0E+00 0.0E+00 0.0E+00 0.0E+00 B B B a Recommended by DeMore et al. [1997] b E/R not reported by DeMore et al. [1997] c Reaction was separated into 2 channels and products were added Reference Madronich and Calvert [1989] a Madronich and Calvert [1989]a; b Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a;b Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Atkinson et al. [1992b]a; c Atkinson et al. [1992b]a;c Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a 218 Table C.2 Odd Hydrogen Reactions. Reaction i H + O2 + (M) ! HO2 + (M) iXH + O3 ! HO + O2 iXHO + O3P ! H + O2 i HO + O3 ! HO2 + O2 i HO + HO ! H2O + O3P i HO + HO + (M) ! H2O2 + (M) iXHO2 + O3P ! HO + O2 i HO2 + O3 ! HO + 2.00 O2 iXHO2+ H ! 0.10 H2 + 1.80 HO + 0.10 O2 i HO2 + HO ! H2O + O2 isHO2 + HO2 ! H2O2 + O2 i H2 + HO ! H2O + H iXH2O2 + O3P ! HO2 + HO i H2O2 + HO ! H2O + HO2 isCO + HO ! CO2 + H k298 1.2E-12 2.9E-11 3.3E-11 6.8E-14 1.9E-12 5.9E-12 5.9E-11 2.0E-15 8.1E-11 1.1E-10 1.7E-12 6.7E-15 1.7E-15 1.7E-12 2.4E-13 a Recommended by DeMore et al. [1997] b No E/R reported, use Madronich and Calvert [1989] c See Table C.19 E/R -1.0E+03 4.7E+02 -1.2E+02 9.4E+02 2.4E+02 -6.2E+02 -2.0E+02 5.0E+02 0.0E+00 -2.5E+02 -6.0E+02 2.0E+03 2.0E+03 1.6E+02 0.0E+00 Reference Madronich and Calvert [1989]a;b;c Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997]b;c Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997] Madronich and Calvert [1989]a 219 Table C.3 Inorganic Nitrogen Reactions. Reaction i N + O2 ! NO + O3P i N + O3 ! NO + O2 i NO + O3 ! NO2 + O2 i NO + N ! N2 + O3P i NO2 + O3P ! NO + O2 A i NO2 + O3 ! NO3 + O2 k298 8.5E-17 <2.0E-16 1.8E-14 3.0E-11 9.7E-12 3.2E-17 E/R 3.6E+03 0.0E+00 1.4E+03 -1.0E+02 -1.2E+02 2.5E+03 i NO2 + O3 ! NO + 2.00 O2 i NO2 + N ! N2O + O3P i NO3 + M ! NO + O2 + M i NO3 + HO ! NO2 + HO2 i NO3 + NO3 ! 2.00 NO2 + O2 i NO3 + O3P ! NO2 + O2 i NO3 + NO ! 2.00 NO2 i NO3 + NO2 ! NO2 + NO + O2 i NO3 + NO2 + (M) ! N2O5 + (M) iXN2O5 + O3P ! ? iXHNO3 + O3P ! HO + NO3 iXHNO4 + O3P ! ? A i N2O + O1D ! N2 + O2 9.7E-19 1.2E-11 1.2E-22 2.2E-11 2.3E-16 1.0E-11 2.6E-11 6.6E-16 1.3E-12 < 3.0E-16 < 3.0E-17 8.6E-16 4.9E-11 2.5E+03 -2.2E+02 6.8E+03 0.0E+00 2.5E+03 0.0E+00 -1.7E+02 1.3E+03 -5.6E+02 0.0E+00 0.0E+00 3.4E+03 0.0E+00 i N2O + O1D ! 2.00 NO i HNO2 + HO ! H2O + NO2 isHNO3 + HO ! H2O + NO3 i HNO4 + HO ! H2O + NO2 + O2 i H + NO2 ! HO + NO i HO + NO + (M) ! HNO2 + (M) i HO + NO2 + (M) ! HNO3 + (M) i HO2 + NO ! HO + NO2 i HO2 + NO3 ! HNO3 + O2 i HNO2 + O3 ! HNO3 + O2 i H2O + N2O5 ! 2.00 HNO3 m NH3 + HO ! NH2 + H2O A m NH2 + O2 ! 2m01 + XPOO 6.7E-11 4.5E-12 1.3E-13 4.6E-12 1.3E-10 7.3E-12 1.1E-11 8.1E-12 3.5E-12 <5.0E-19 <2.0E-21 1.6E-13 5.8E-21 0.0E+00 3.9E+02 -7.8E+02 -3.8E+02 3.4E+02 -1.0E+03 -1.4E+03 -2.5E+02 0.0E+00 0.0E+00 0.0E+00 7.1E+02 0.0E+00 m NH2 + O2 ! H2O + NO m NH2 + O3 ! NH2O + O2 m NH2 + HO2 ! ? m NH2 + NO ! H2O + N2 m NH2 + NO2 ! H2O + N2O i CO + NO3 ! CO2 + NO2 q HCN + O3P ! ? q HCN + HO ! ? q MECN + HO ! ? 1.9E-22 1.9E-13 3.4E-11 1.8E-11 1.9E-11 < 4.0E-19 1.5E-17 3.1E-14 2.3E-14 0.0E+00 9.3E+02 0.0E+00 -4.5E+02 -6.5E+02 0.0E+00 4.0E+03 4.0E+02 1.1E+03 B B B Reference DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989] a DeMore et al. [1997] Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]b DeMore et al. [1997] Madronich and Calvert [1989] c DeMore et al. [1997] d DeMore et al. [1997]d Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997]e DeMore et al. [1997]f Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997] Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997]d DeMore et al. [1997]f DeMore et al. [1997]f DeMore et al. [1997] DeMore et al. [1997] g Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] DeMore et al. [1997]h DeMore et al. [1997]h DeMore et al. [1997] Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989]a Madronich and Calvert [1989]a Madronich and Calvert [1989]a DeMore et al. [1997] a Recommended by DeMore et al. [1997] b see text c Reaction no longer included in calculations, see text d New Reaction e Reaction pathway not firmly established, Arrhenius expression provided, also a three body reaction path f See Table C.19 g products changed h Branching ratio based on Madronich and Calvert [1989] 220 Table C.4 Organic Updates. Reaction c CH4 + HO ! CH3 + H2O c CH4 + NO3 ! CH3 + HNO3 c C2H6 + HO ! C2H5 + H2O c C2H6 + NO3 ! C2H5 + HNO3 1 c C3H8 + HO ! 1.5 2031 + 0.5 2032 + 2. H2O 2 c C3H8 + HO ! 1.5 XSOO + 0.50 XPOO 1 c C3H8 NO3 ! 1.50 2031 0.50 2032 2.00 HNO3 2 c C3H8 NO3 ! 1.50 XSOO + 0.50 XPOO 1 c c041 + HO ! 1.72 2041 + 0.28 2042 + 2. H2O 2 c c041 + HO ! 1.72 XSOO + 0.28 XPOO c c041 + NO3 ! 2041 + HNO3 + XSOO c c042 + HO ! 2043 + H2O + XTOO c c042 + NO3 ! 2043 + HNO3 + XTOO 1 c c052 + HO ! 0.18 2053 + 1.10 2054 + 0.72 2055 2 c c052 + HO ! 0.18 XPOO + 1.82 XSOO c c052 + NO3 ! 2054 + HNO3 + XSOO 1 c c053 + HO ! 0.54 2052 0.28 2056 1.18 2057 2 c c053 + HO ! 0.28 XPOO 0.54 XSOO 1.18 XTOO c c053 + NO3 ! 2057 + HNO3 + XTOO 1 c c062 + HO ! 1.84 2062 0.16 2063 2.00 H2O 2 c c062 + HO ! 1.84 XTOO 0.16 XPOO c c062 + NO3 ! 2062 + HNO3 + XTOO u C2H2 + HO + (M) ! dd21 HO (M) u C2H2 + O3 ! ? u C2H4 + HO + (M) ! 0o21 (M) u C2H4 + NO3 ! 2n22 + XPOO u C2H4 + O3 ! 7011 + CH2O u C3H6 + HO ! 0.65 2o32 + 0.35 2o33 + k298 6.3E-15 < 1.0E-18 2.4E-13 1.4E-18 5.5E-13 5.5E-13 8.5E-18 8.5E-18 E/R 1.8E+03 0.0E+00 1.1E+03 1.3E+03 6.6E+02 6.6E+02 0.0E+00 0.0E+00 1.3E-12 1.3E-12 4.6E-17 2.3E-12 1.1E-16 2.0E-12 5.6E+02 5.6E+02 3.3E+03 8.5E+02 3.1E+03 3.7E+02 2.0E-12 8.1-17 3.7E+02 3.9E+03 2.0E-12 2.0E-12 1.6E-16 3.0E-12 3.0E-12 4.3E-16 7.5E-13 1.0E-20 8.2E-12 2.0E-16 1.7E-18 2.6E-11 5.3E+02 5.3E+02 3.9E+03 8.4E+01 8.4E+01 3.1E+03 1.3E+03 4.1E+03 -1.2E+01 2.9E+03 2.6E+03 -5.0E+02 9.5E-15 1.1E-17 1.2E+03 1.9E+03 6.0E-11 3.7E-13 1.5E-16 3.1E-11 -5.2E+02 2.1E+02 1.0E+03 -4.7E+02 1.2E-14 9.6E-18 8.4E+02 1.7E+03 Reference DeMore et al. [1997] Atkinson [1994] a;b DeMore et al. [1997] Atkinson [1994]a;b DeMore et al. [1997] DeMore et al. [1997] Atkinson [1994]a;b Atkinson [1994]a;b Madronich and Calvert [1989] c;d Madronich and Calvert [1989]c;d Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994]d Atkinson [1994]d Atkinson [1994] e Atkinson [1994]e Atkinson [1994]e Atkinson [1994]e Atkinson [1994]d Atkinson [1994]d Atkinson [1994]e Madronich and Calvert [1989]e;f ; g DeMore et al. [1997]b DeMore et al. [1997]e;g Atkinson [1994]d DeMore et al. [1997] Atkinson [1994] + 0.35 XPOO + 0.65 XSOO u C3H6 + NO3 ! 2n32 + XSOO u C3H6 + O3 ! 0.50 7021 + 0.50 d021 + 0.50 7011 + 0.50 CH2O u u041 + HO ! 2o43 + XSOO u u041 + NO3 ! 2n45 XSOO u u041 + O3 ! 7021 d021 u u042 + HO ! 0.50 2o44 + 0.50 2o45 Atkinson [1994] DeMore et al. [1997] Atkinson [1994] h Atkinson [1994]h;i Atkinson [1994]h Atkinson [1994] + 0.50 XPOO + 0.50 XTOO u u042 + NO3 ! 2n46 XTOO u u042 + O3 ! 0.50 7031 + 0.50 k031 + 0.50 7011 + 0.50 CH2O a products based on h-atom abstraction b New Reaction c Recommended by Atkinson [1994] d E/R calculated from D+nT, not reported as Arrhenius equation e No E/R value reported, use value from Madronich and Calvert [1989] f Recommended by DeMore et al. [1997] g see Table C.19 h average of cis and trans isomers i E/R for trans isomer Atkinson [1994] Atkinson [1994] 221 Table C.5 Alkyl Radical Updates. Reaction 0XCH3 O3 0XCH3 O2 0 CH3 O2 (M) 0 C2H5 O2 0 C2H5 O2 (M) 0 HCO O2 0 0o11 O2 k298 ! ! ! ! ! ! ! E/R ? ? 2011 (M) C2H4 HO2 2021 XPOO (M) CO HO2 CH2O HO2 a Recommended by DeMore et al. [1997] Reference 2.6E-12 2.2E+02 <3.0E-16 0.0E+00 1.1E-12 -1.2E+03 <2.0E-14 0.0E+00 7.5E-12 -1.2E+03 5.5E-12 -1.4E+02 9.1E-12 0.0E+00 Madronich and Calvert [1989] a Madronich and Calvert [1989]a DeMore et al. [1997], see Table C.19 DeMore et al. [1997] DeMore et al. [1997], See Table C.19 Madronich and Calvert [1989]a DeMore et al. [1997] 222 Table C.6 Peroxy radical reaction with NO. 2 2n11 NO 2 2011 NO 2 2o11 NO 2 2m11 NO 2 2m12 NO 2 2n21 NO 2 2p21 NO 2 2d21 NO 2 2a21 NO 2 2g21 NO 2 2n22 NO 2 2n23 NO 2 2021 NO 2 2021 NO 2 2o21 NO 2 2m21 NO 2 2m22 NO 2 2m23 NO 2 2m23 NO 2 2v31 NO 2 2d33 NO 2 2d33 NO 2 2a32 NO 2 2a32 NO 2 2n31 NO 2 2n35 NO 2 2d32 NO 2 2d32 NO 2 2d34 NO 2 2d34 NO 2 2k33 NO 2 2k33 NO 2 2a31 NO 2 2a31 NO 2 2d31 NO 2 2d31 NO 2 2k34 NO 2 2k34 NO 2 2n32 NO 2 2n33 NO 2 2n34 NO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 1 ! 2 ! ! A B ! A ! B ! ! ! ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! ! ! Reaction 1n11 NO2 -1.00 XPOO CH3O NO2 1o11 NO2 -1.00 XPOO CH2O NH2 NO2 -1.00 XPOO 1m11 NO2 -1.00 XSOO 1n21 NO2 -1.00 XSOO 1p21 NO2 -1.00 XPOO 1d21 NO2 -1.00 XPOO 1a21 NO2 -1.00 XPOO 1g21 NO2 -1.00 XPOO 1n22 NO2 -1.00 XPOO 1n23 NO2 -1.00 XSOO n021 1021 NO2 -1.00 XPOO 1o22 NO2 -1.00 XPOO d021 NH2 NO2 -1.00 XSOO 0m11 CH2O NO2 -1.00 XPOO 2.00 w011 2.00 CH2O 2.00 HO2 2.00 NO2 k2 98 E/R 4.0E-12 0.0E+00 7.7E-12 -2.8E+02 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 8.2E-14 -3.7E+02 8.7E-12 -3.7E+02 9.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 2.0E-12 0.0E+00 -2.00 XTOO CH2O 2.00 CO 2.00 NO2 -1.00 XPOO 2.0E-12 0.0E+00 4.0E-12 0.0E+00 1d34 NO2 -1.00 XPOO nd33 -1.00 XPOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 1a32 NO2 -1.00 XPOO an34 -1.00 XPOO 1n31 NO2 -1.00 XSOO 1n35 NO2 -1.00 XPOO 1d31 NO2 -1.00 XSOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 3.8E-12 0.0E+00 nd35 -1.00 XSOO 1d35 NO2 -1.00 XPOO 1.9E-13 0.0E+00 3.9E-12 0.0E+00 nd38 -1.00 XPOO 1k33 NO2 -1.00 XPOO 8.0E-14 0.0E+00 3.9E-12 0.0E+00 nk38 -1.00 XPOO an35 -1.00 XSOO 8.0E-14 0.0E+00 1.9E-13 0.0E+00 1a31 NO2 -1.00 XSOO 1d32 NO2 -1.00 XSOO 3.8E-12 0.0E+00 3.8E-12 0.0E+00 nd34 -1.00 XSOO 1k31 NO2 -1.00 XPOO 1.9E-13 0.0E+00 3.9E-12 0.0E+00 nk31 -1.00 XPOO 0.04 nn31 0.96 1n32 0.96 NO2 -1.00 XSOO d021 CH2O 2.00 NO2 -1.00 XPOO do23 CH2O 2.00 NO2 -1.00 XSOO 8.0E-14 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 a Reaction added by Williams [1994a] Source DeMore et al. [1997] didn’t use, added by williams DeMore et al. [1997] Kirchner and Stockwell [1996] a 223 Table C.6 (continued) Peroxy radical reaction with NO 2 2031 NO 2 2031 NO 2 2032 NO 2 2032 NO 2 2o32 NO 2 2o32 NO 2 2o33 NO 2 2o33 NO 2 2o34 NO 2 2o34 NO 2 2o31 NO 2 2o31 NO 2 2o35 NO 2 2o35 NO 2 2m33 NO 2 2p30 NO 2 2p30 NO 2 2p31 NO 2 2p31 NO 2 2d41 NO 2 2d41 NO 2 2d42 NO 2 2d42 NO 2 2k43 NO 2 2k43 NO 2 2a42 NO 2 2a42 NO 2 2d43 NO 2 2d43 NO 2 2d45 NO 2 2d45 NO 2 2g40 NO 2 2g40 NO A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! A B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! Reaction k2 98 E/R 1032 NO2 -1.00 XSOO n032 -1.00 XSOO 4.1E-12 0.0E+00 2.0E-13 0.0E+00 1031 NO2 -1.00 XPOO n031 -1.00 XPOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 1o33 NO2 -1.00 XSOO no34 -1.00 XSOO 3.8E-12 0.0E+00 1.9E-13 0.0E+00 1o34 NO2 -1.00 XPOO no33 -1.00 XPOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 1o35 NO2 -1.00 XPOO no35 -1.00 XPOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 1o32 NO2 -1.00 XSOO no32 -1.00 XSOO 3.8E-12 0.0E+00 1.9E-13 0.0E+00 1o31 NO2 -1.00 XPOO no31 -1.00 XPOO 0m22 CH2O NO2 -1.00 XPOO 1p30 NO2 -1.00 XPOO 3.9E-12 0.0E+00 8.0E-14 0.0E+00 4.0E-12 0.0E+00 3.9E-12 0.0E+00 pn30 -1.00 XPOO 1p31 NO2 -1.00 XSOO 8.0E-14 0.0E+00 3.8E-12 0.0E+00 pn34 -1.00 XSOO 1d41 NO2 -1.00 XSOO 1.9E-13 0.0E+00 3.7E-12 0.0E+00 nd41 -1.00 XSOO 1d42 NO2 -1.00 XSOO 3.4E-13 0.0E+00 3.7E-12 0.0E+00 nd44 -1.00 XSOO dk40 HO2 NO2 -1.00 XPOO 3.4E-13 0.0E+00 3.9E-12 0.0E+00 nk47 -1.00 XPOO 1a43 NO2 -1.00 XSOO 1.4E-13 0.0E+00 3.7E-12 0.0E+00 an4A -1.00 XSOO 1d44 NO2 -1.00 XSOO 3.4E-13 0.0E+00 3.7E-12 0.0E+00 nd45 -1.00 XSOO 1d45 NO2 -1.00 XPOO 3.4E-13 0.0E+00 3.9E-12 0.0E+00 nd46 -1.00 XPOO 1g40 NO2 -1.00 XTOO 1.4E-13 0.0E+00 3.9e-12 0.0E+00 gn40 -1.00 XTOO 1.1e-13 0.0E+00 a Branching ratio from Madronich and Calvert [1989] Source Kirchner and Stockwell [1996] a 224 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1n41 NO2 -1.00 XSOO ! 1n43 NO2 -1.00 XPOO k2 98 E/R 4.0E-12 0.0E+00 4.0E-12 0.0E+00 1n45 NO2 -1.00 XTOO nn43 -1.00 XTOO 3.9E-12 0.0E+00 1.1E-13 0.0E+00 1n48 NO2 -1.00 XSOO nn44 -1.00 XSOO 1n42 NO2 -1.00 XSOO 1n44 NO2 -1.00 XPOO 1n4a NO2 -1.00 XSOO 1n4b NO2 -1.00 XPOO 1d47 NO2 -1.00 XSOO nd48 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1d49 NO2 -1.00 XPOO nd40 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1k45 NO2 -1.00 XSOO nk45 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1k42 NO2 -1.00 XPOO nk43 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1k47 NO2 -1.00 XPOO nk49 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1a41 NO2 -1.00 XSOO an40 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1d43 NO2 -1.00 XTOO nd47 -1.00 XTOO 3.9E-12 0.0E+00 1.1E-13 0.0E+00 1d48 NO2 -1.00 XSOO nd49 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1k40 NO2 -1.00 XPOO nk4A -1.00 XPOO 3.9E-12 0.0E+00 1.4E-14 0.0E+00 1k44 NO2 -1.00 XSOO nk46 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1k46 NO2 -1.00 XPOO nk48 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1k48 NO2 -1.00 XPOO nk40 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 2 2n41 NO 2 2n43 NO ! 2 2n47 NO 2 2n47 NO ! 2 2n48 NO 2 2n48 NO 2 2n42 NO 2 2n44 NO 2 2n4a NO 2 2n4b NO 2 2d47 NO 2 2d47 NO 2 2d49 NO 2 2d49 NO 2 2k44 NO 2 2k44 NO 2 2k45 NO 2 2k45 NO 2 2k47 NO 2 2k47 NO 2 2a41 NO 2 2a41 NO 2 2d44 NO 2 2d44 NO 2 2d48 NO 2 2d48 NO 2 2k40 NO 2 2k40 NO 2 2k42 NO 2 2k42 NO 2 2k48 NO 2 2k48 NO 2 2k49 NO 2 2k49 NO A B ! A ! B ! ! ! ! ! A B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! a Reaction added by Williams [1994a] Source a a 225 Table C.6 (continued) Peroxy radical reaction with NO 2 2k4B NO 2 2k4B NO 2 2a43 NO 2 2a43 NO 2 2a47 NO 2 2a47 NO 2 2k46 NO 2 2k46 NO 2 2k4C NO 2 2k4C NO 2 2n45 NO 2 2n45 NO 2 2n46 NO 2 2n46 NO 2 2041 NO 2 2041 NO 2 2042 NO 2 2042 NO 2 2043 NO 2 2043 NO 2 2o40 NO 2 2o40 NO 2 2o42 NO 2 2o42 NO 2 2o43 NO 2 2o43 NO 2 2o44 NO 2 2o44 NO 2 2o45 NO 2 2o45 NO 2 2o46 NO 2 2o46 NO 2 2o4A NO 2 2o4A NO A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! Reaction k2 98 E/R 1k4B NO2 -1.00 XPOO 3.9E-12 0.0E+00 nk4B -1.00 XPOO 1a44 NO2 -1.00 XTOO 1.4E-13 0.0E+00 3.9E-12 0.0E+00 an49 -1.00 XTOO 1a42 NO2 -1.00 XPOO an4B -1.00 XPOO 1.1E-13 0.0E+00 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1k4D NO2 -1.00 XPOO nk4J -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1k4C NO2 -1.00 XPOO nk4C -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1n47 NO2 -1.00 XSOO nn41 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1n46 NO2 -1.00 XTOO nn42 -1.00 XTOO 3.9E-12 0.0E+00 1.1E-13 0.0E+00 1043 NO2 -1.00 XSOO n042 -1.00 XSOO 3.7E-12 0.0E+00 3.5E-13 0.0E+00 1042 NO2 -1.00 XPOO n041 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1044 NO2 -1.00 XTOO n043 -1.00 XTOO 3.9E-12 0.0E+00 1.1E-13 0.0E+00 1o40 NO2 -1.00 XPOO no40 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1o43 NO2 -1.00 XPOO no42 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1o44 NO2 -1.00 XSOO no43 -1.00 XSOO 3.7E-12 0.0E+00 3.4E-13 0.0E+00 1o41 NO2 -1.00 XTOO no44 -1.00 XTOO 3.9E-12 0.0E+00 1.1E-13 0.0E+00 1o45 NO2 -1.00 XPOO no45 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1o46 NO2 -1.00 XPOO no46 -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 1o4A NO2 -1.00 XPOO no4A -1.00 XPOO 3.9E-12 0.0E+00 1.4E-13 0.0E+00 Source Kirchner and Stockwell [1996] a Kirchner and Stockwell [1996] b a Branching ratio calculated using methods of Kirchner and Stockwell [1996] b Branching ratio from Kirchner and Stockwell [1996], see text 226 Table C.6 (continued) Peroxy radical reaction with NO 2 2o4C NO 2 2o4C NO 2 2o48 NO 2 2o48 NO 2 2o49 NO 2 2o49 NO 2 2o4B NO 2 2o4B NO 2 2o4D NO 2 2o4D NO 2 2d51 NO 2 2d51 NO 2 2d53 NO 2 2d53 NO 2 2d57 NO 2 2d57 NO 2 2d5A NO 2 2d5A NO 2 2d5A NO 2 2d52 NO 2 2d52 NO 2 2d55 NO 2 2d55 NO 2 2d56 NO 2 2d56 NO 2 2d54 NO 2 2d54 NO 2 2n51 NO 2 2n51 NO 2 2n52 NO 2 2n52 NO 2 2n55 NO 2 2n56 NO 2 2n57 NO 2 2n58 NO 2 2n59 NO 2 2n5a NO A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! 1A ! 2A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! ! ! ! ! ! Reaction k2 98 E/R 1o4C NO2 -1.00 XPOO 3.9E-12 0.0E+00 no4C -1.00 XPOO 1o48 NO2 -1.00 XPOO 1.4E-13 0.0E+00 3.9E-12 0.0E+00 no4E -1.00 XPOO 1o49 NO2 -1.00 XPOO 1.4E-13 0.0E+00 3.9E-12 0.0E+00 no4F -1.00 XPOO 1o4B NO2 -1.00 XPOO 1.4E-13 0.0E+00 3.9E-12 0.0E+00 no4B -1.00 XPOO 1o4D NO2 -1.00 XPOO 1.4E-13 0.0E+00 3.7E-12 0.0E+00 no4D -1.00 XPOO 1d51 NO2 -1.00 XTOO 3.4E-13 0.0E+00 3.8E-12 0.0E+00 nd51 -1.00 XTOO 1d53 NO2 -1.00 XSOO 1.7E-13 0.0E+00 3.5E-12 0.0E+00 nd53 -1.00 XSOO 1d57 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 nd55 -1.00 XSOO 2.00 dk33 2.00 2d21 2.00 NO2 2.00 XPOO 5.2E-13 0.0E+00 1.9E-12 0.0E+00 -2.00 XTOO nd50 -1.00 XTOO 1.9E-12 0.0E+00 1.7E-13 0.0E+00 1d52 NO2 -1.00 XSOO nd52 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1d56 NO2 -1.00 XSOO nd56 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1d55 NO2 -1.00 XTOO nd57 -1.00 XTOO 3.8E-12 0.0E+00 1.7E-13 0.0E+00 1d54 NO2 -1.00 XPOO nd54 -1.00 XPOO 1n51 NO2 -1.00 XTOO 3.8E-12 0.0E+00 2.3E-13 0.0E+00 3.8E-12 0.0E+00 nn51 -1.00 XTOO nn52 -1.00 XSOO 1.7E-13 0.0E+00 5.2E-13 0.0E+00 1n52 NO2 -1.00 XSOO 1n55 NO2 -1.00 XSOO 1n56 NO2 -1.00 XSOO 1n57 NO2 -1.00 XSOO 1n58 NO2 -1.00 XSOO 1n59 NO2 -1.00 XSOO 1n5a NO2 -1.00 XPOO 3.5E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 a Reaction added by Williams [1994a] Source a a a a a a 227 Table C.6 (continued) Peroxy radical reaction with NO 2 2d50 NO 2 2d50 NO 2 2d58 NO 2 2d58 NO 2 2u51 NO 2 2u51 NO 2 2u52 NO 2 2u52 NO 2 2k51 NO 2 2k51 NO 2 2k61 NO 2 2k52 NO 2 2k53 NO 2 2n53 NO 2 2n53 NO 2 2n54 NO 2 2n54 NO 2 2h53 NO 2 2h53 NO 2 2h54 NO 2 2h54 NO 2 2051 NO 2 2051 NO 2 2052 NO 2 2052 NO 2 2053 NO 2 2053 NO 2 2054 NO 2 2054 NO 2 2055 NO 2 2055 NO 2 2056 NO 2 2056 NO 2 2057 NO 2 2057 NO A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! ! ! A B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! ! Reaction k2 98 E/R 1d5A NO2 -1.00 XSOO nd5A -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1d58 NO2 -1.00 XSOO nd58 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1u52 NO2 -1.00 XTOO nu51 -1.00 XTOO 3.8E-12 0.0E+00 1.7E-13 0.0E+00 1u51 NO2 -1.00 XSOO nu52 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1k51 NO2 -1.00 XTOO nk51 -1.00 XTOO 1k61 NO2 -1.00 XSOO 1k52 NO2 -1.00 XSOO 1k53 NO2 -1.00 XSOO 1n53 NO2 -1.00 XSOO 3.8E-12 0.0E+00 1.7E-13 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 3.5E-12 0.0E+00 nn53 -1.00 XSOO 1n54 NO2 -1.00 XTOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 nn53 -1.00 XTOO 1h51 NO2 -1.00 XSOO 1.7E-13 0.0E+00 3.5E-12 0.0E+00 hn51 -1.00 XSOO 1h52 NO2 -1.00 XTOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 hn52 -1.00 XTOO 1051 NO2 -1.00 XSOO 1.7E-13 0.0E+00 3.5E-12 0.0E+00 n051 -1.00 XSOO 1052 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 n052 -1.00 XSOO 1053 NO2 -1.00 XPOO n053 -1.00 XPOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 2.3E-13 0.0E+00 1054 NO2 -1.00 XSOO n054 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1055 NO2 -1.00 XSOO n055 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1056 NO2 -1.00 XPOO n056 -1.00 XPOO 3.8E-12 0.0E+00 2.3E-13 0.0E+00 1057 NO2 -1.00 XTOO n057 -1.00 XTOO 3.8E-12 0.0E+00 1.7E-13 0.0E+00 a Reaction added by Williams [1994a] Source a a a 228 Table C.6 (continued) Peroxy radical reaction with NO 2 2o51 NO 2 2o51 NO 2 2o52 NO 2 2o52 NO 2 2o55 NO 2 2o55 NO 2 2o56 NO 2 2o56 NO 2 2o57 NO 2 2o57 NO 2 2o58 NO 2 2o58 NO 2 2o59 NO 2 2o59 NO 2 2o50 NO 2 2o50 NO 2 2o53 NO 2 2o53 NO 2 2o54 NO 2 2o54 NO 2 2h51 NO 2 2h51 NO 2 2h52 NO 2 2h52 NO 2 2o5A NO 2 2o5A NO 2 2o5B NO 2 2o5B NO 2 2a51 NO 2 2a51 NO 2 2a50 NO 2 2a50 NO 2 2a53 NO 2 2a53 NO A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! Reaction k2 98 E/R 1o52 NO2 -1.00 XSOO 3.5E-12 0.0E+00 no52 -1.00 XSOO 1o54 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 no53 -1.00 XSOO 1o5A NO2 -1.00 XPOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 no5A -1.00 XPOO 1o56 NO2 -1.00 XSOO 2.3E-13 0.0E+00 3.5E-12 0.0E+00 no56 -1.00 XSOO 1o57 NO2 -1.00 XPOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 no57 -1.00 XPOO 1o58 NO2 -1.00 XPOO 2.3E-13 0.0E+00 3.8E-12 0.0E+00 no58 -1.00 XPOO 1o59 NO2 -1.00 XPOO 2.3E-13 0.0E+00 3.8E-12 0.0E+00 no59 -1.00 XPOO 1o50 NO2 -1.00 XSOO 2.3E-13 0.0E+00 3.5E-12 0.0E+00 no50 -1.00 XSOO 1o53 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 no51 -1.00 XSOO 1o51 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 no54 -1.00 XSOO hk51 HO2 NO2 -1.00 XSOO 5.2E-13 0.0E+00 3.5E-12 0.0E+00 hn53 -1.00 XSOO 1h53 NO2 -1.00 XTOO 5.2E-13 0.0E+00 3.8E-12 0.0E+00 hn54 -1.00 XTOO 1o5C NO2 -1.00 XSOO 1.7E-13 0.0E+00 3.5e-12 0.0E+00 no5C -1.00 XSOO 1o5B NO2 -1.00 XPOO 5.2e-13 0.0E+00 3.8e-12 0.0E+00 no5D -1.00 XPOO 1a50 NO2 -1.00 XSOO an54 -1.00 XSOO 2.3e-13 0.0E+00 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1a51 NO2 -1.00 XSOO an52 -1.00 XSOO 3.5E-12 0.0E+00 5.2E-13 0.0E+00 1a52 NO2 -1.00 XPOO an55 -1.00 XSOO 3.8E-12 0.0E+00 2.3E-13 0.0E+00 Source 229 Table C.6 (continued) Peroxy radical reaction with NO 2 2r63 NO 2 2r61 NO 2 2r61 NO ! 2 2r62 NO 2 2r62 NO ! 2 2r62 NO 2 2d61 NO 2 2d61 NO 2 2d61 NO 2 2d62 NO 2 2d62 NO 2 2d62 NO 2 2061 NO 2 2061 NO 2 2062 NO 2 2063 NO 2 2o61 NO 2 2o61 NO 2 2o62 NO 2 2o63 NO 2 2o64 NO 2 2o64 NO 2 2r72 NO 2 2r72 NO 2 2r75 NO 2 2r75 NO 2 2r75 NO 2 2r75 NO 2 2r75 NO 2 2r71 NO 2 2r71 NO 2 2r71 NO 2 2r73 NO 2 2r73 NO 2 2r73 NO 2 2r73 NO 2 2r73 NO 1 ! 2 ! A A ! B ! 1A ! 2A ! B ! 1A ! 2A ! B ! A ! B ! 1 2 ! ! A B ! ! ! ! A B ! A ! B ! 1A ! 2A ! 1B ! 2B ! ! ! A 1B ! 2B ! 1A ! 2A ! 1B ! 2B ! ! ! Reaction 1r61 NO2 -1.00 XTOO 2.00 ud41 2.00 dd21 2.00 HO2 2.00 NO2 -2.00 XSOO k2 98 E/R 4.0E-12 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 2.00 ud41 2.00 ad21 2.00 HO2 2.00 NO2 -2.00 XSOO 1.6E-12 0.0E+00 1.6E-12 0.0E+00 rk61 -1.00 XSOO 2.00 k031 2.00 2d32 2.00 NO2 2.00 XSOO 7.9E-12 0.0E+00 1.9E-12 0.0E+00 -2.00 XTOO nd61 -1.00 XTOO 2.00 ko37 2.00 2d32 2.00 NO2 2.00 XSOO 1.9E-12 0.0E+00 2.8E-13 0.0E+00 1.9E-12 0.0E+00 -2.00 XTOO nd62 -1.00 XTOO 1.9E-12 0.0E+00 2.8E-13 0.0E+00 1061 NO2 -1.00 XSOO n061 -1.00 XSOO 0.17 n062 0.83 1062 0.83 NO2 -1.00 XTOO 0.17 n063 0.83 1063 0.83 NO2 -1.00 XPOO 3.2E-12 0.0E+00 7.9E-13 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 1o61 NO2 -1.00 XPOO no61 -1.00 XPOO 0.17 no62 0.83 1o63 0.83 NO2 -1.00 XPOO 0.17 no63 0.83 1o64 0.83 NO2 -1.00 XPOO 1o62 NO2 -1.00 XPOO 3.6E-12 0.0E+00 3.6E-13 0.0E+00 4.0E-12 0.0E+00 4.0E-12 0.0E+00 3.6E-12 0.0E+00 no64 -1.00 XPOO 1r71 NO2 -1.00 XPOO 3.6E-13 0.0E+00 3.5E-12 0.0E+00 nr75 -1.00 XPOO 2.00 ud53 2.00 dd21 2.00 HO2 2.00 NO2 5.5E-13 0.0E+00 1.1E-12 0.0E+00 -2.00 XTOO 2.00 ud43 2.00 dk33 2.00 HO2 2.00 NO2 -2.00 XTOO C nr74 -1.00 XTOO 1.1E-12 0.0E+00 7.5E-13 0.0E+00 7.5E-13 0.0E+00 4.2E-13 0.0E+00 nr73 -1.00 XTOO ud51 ud43 ak33 av22 4.2E-13 0.0E+00 1.8E-12 0.0E+00 2.00 HO2 2.00 NO2 -2.00 XTOO 2.00 ud41 2.00 dk33 2.00 HO2 2.00 NO2 1.8E-12 0.0E+00 2.1E-12 0.0E+00 -2.00 XTOO 2.00 ud51 2.00 dd21 2.00 HO2 2.00 NO2 2.1E-12 0.0E+00 7.5E-13 0.0E+00 -2.00 XTOO C nr71 -1.00 XTOO 7.5E-13 0.0E+00 4.2E-13 0.0E+00 Source 230 Table C.6 (continued) Peroxy radical reaction with NO 2 2r74 NO 2 2r74 NO 2 2r74 NO 2 2r74 NO 2 2r74 NO 2 2u71 NO 2 2u71 NO 2 2t71 NO 2 2e72 NO 2 2e72 NO 2 2h71 NO 2 2h71 NO 2 2071 NO 2 2071 NO 2 2o71 NO 2 2o71 NO 2 2r81 NO 2 2r81 NO 2 2r82 NO 2 2r82 NO 2 2t81 NO 2 2t81 NO 2 2d82 NO 2 2d82 NO 2 2081 NO 2 2081 NO 2 2o81 NO 2 2o81 NO 2 2t91 NO 2 2t91 NO 2 2nA1 NO 2 2nA1 NO 2 2tA1 NO 2 2tA1 NO A 2A ! 1B ! 2B ! 1 ! ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! A B ! A ! B ! ! 1 ! 2 ! 1 ! 2 ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! A ! B ! Reaction k2 98 E/R 2.00 ud41 2.00 ak33 2.00 HO2 2.00 NO2 -2.00 XTOO 1.1E-12 0.0E+00 1.1E-12 0.0E+00 2.00 ud51 2.00 ad21 2.00 HO2 2.00 NO2 -2.00 XTOO C nr72 -1.00 XTOO 0.46 nt71 1.54 2t71 1.54 NO2 1.54 XTOO -2.00 XPOO 0.23 en72 0.77 2e72 0.77 NO2 -0.23 XTOO 0.40 en72 1.60 dk40 1.60 HO2 1.60 NO2 1.60 k031 -2.00 XTOO 7.5E-13 0.0E+00 7.5E-13 0.0E+00 4.2E-13 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 4.0E-12 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 2.00 hk43 2.00 k031 2.00 HO2 2.00 NO2 -2.00 XTOO 1071 NO2 -1.00 XSOO 2.0E-12 0.0E+00 2.0E-12 0.0E+00 2.9E-12 0.0E+00 n071 -1.00 XSOO 1o71 NO2 -1.00 XPOO 1.1E-12 0.0E+00 3.5E-12 0.0E+00 no71 -1.00 XPOO ud51 2.00 dk33 2.00 HO2 2.00 NO2 ud52 -2.00 XTOO ud51 ud52 2.00 ak33 2.00 NO2 2.00 HO2 -2.00 XTOO 5.5E-13 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 2.0E-12 0.0E+00 1t81 NO2 -1.00 XSOO nt81 -1.00 XSOO 2.6E-12 0.0E+00 1.4E-12 0.0E+00 1d81 NO2 -1.00 XTOO nd81 -1.00 XTOO 3.4E-12 0.0E+00 5.6E-13 0.0E+00 1081 NO2 -1.00 XSOO n081 -1.00 XSOO 2.6E-12 0.0E+00 1.4E-12 0.0E+00 1o81 NO2 -1.00 XSOO no81 -1.00 XSOO 2.6E-12 0.0E+00 1.4E-12 0.0E+00 1t91 NO2 -1.00 XPOO nt91 -1.00 XPOO 3.2E-12 0.0E+00 8.2E-13 0.0E+00 1nA1 NO2 -1.00 XTOO nnA1 -1.00 XTOO 3.3E-12 0.0E+00 7.1E-13 0.0E+00 1tA1 NO2 -1.00 XTOO ntA1 -1.00 XTOO 3.3E-12 0.0E+00 7.1E-13 0.0E+00 Source 231 Table C.6 (continued) Peroxy radical reaction with NO 3 3v22 NO ! 3 3d21 NO 3 3d21 NO 3 3a21 NO 3 3n21 NO 3 3n21 NO 3 3v21 NO 3 3v21 NO 3 3021 NO 3 3o23 NO 3 3o23 NO ! 3 3h21 NO 3 3h21 NO 3 3o22 NO 3 3o22 NO 3 3n31 NO 3 3d31 NO 3 3d31 NO 3 3n32 NO 3 3n33 NO 1 2 ! ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! ! 1 ! 2 3 3n33 NO 3 3u31 NO 3 3u31 NO 3 3v32 NO 3 3v32 NO 3 3d33 NO ! 3 3d33 NO 3 3k33 NO 3 3a32 NO 3 3d32 NO ! 3 3d32 NO 3 3k31 NO 3 3u32 NO 3 3u32 NO 3 3a31 NO 3 3a31 NO 3 3a33 NO 3 3n34 NO 1 ! 2 ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! ! ! Reaction CO2 CO 2.00 NO2 -1.00 XAOO k2 98 E/R 2.0E-11 0.0E+00 2.00 CO2 2.00 CO 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 CO2 HO2 NO2 -1.00 XAOO 2.00 2n11 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 av11 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2011 CO2 NO2 -1.00 XAOO 2.00 CH2O 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.8E-11 -3.6E+02 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 CH2O 2.00 CO2 2.00 HO 2.00 NO2 -2.00 XAOO 2.00 a011 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO dv22 CO2 2.00 NO2 -1.00 XAOO 2.00 dv22 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 3n21 CO2 NO2 2.00 2n21 2.00 CO2 2.00 NO2 2.00 XSOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 uv21 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 dv22 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2d21 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 3021 CO2 NO2 8a32 NO2 -1.00 XAOO 2.00 dd21 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0e+00 1.0E-11 0.0E+00 -2.00 XAOO 3o23 CO2 NO2 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.00 uk22 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 ad21 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 8a33 NO2 -1.00 XAOO 8n34 NO2 -1.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0e+00 2.0E-11 0.0e+00 2.0E-11 0.0e+00 Source DeMore et al. [1997] 232 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1 3 3031 NO 3 3031 NO 3 3o31 NO 3 3o31 NO 3 3o35 NO ! 3 3o35 NO 3 3o32 NO 3 3o32 NO 3 3o33 NO 3 3o33 NO 3 3o34 NO ! 3 3o34 NO 3 3u41 NO 3 3u44 NO 3 3d41 NO ! 3 3d41 NO 3 3v41 NO 3 3v41 NO 3 3v42 NO 3 3u42 NO 3 3d46 NO 3 3d46 NO 3 3d47 NO 3 3d43 NO 3 3d44 NO 3 3d44 NO 3 3n42 NO 3 3n41 NO 3 3n41 NO 3 3n44 NO 3 3n44 NO 3 3n49 NO 3 3n43 NO 3 3v43 NO 3 3v43 NO 3 3d42 NO 3 3d42 NO 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! ! ! 1 ! 2 ! ! ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! ! ! 1 ! 2 ! 1 ! 2 ! k2 98 E/R 2.00 2021 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 d021 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2o21 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 do23 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 a021 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 ao23 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 1d36 CO2 NO2 -1.00 XAOO 1d36 CO2 NO2 -1.00 XAOO 2.00 dv31 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 dv31 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 3v32 CO2 NO2 1d33 CO2 NO2 -1.00 XAOO 2.00 2d33 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 3d33 CO2 NO2 3d32 CO2 NO2 2.00 dd32 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO vk32 CO2 2.00 NO2 -1.00 XAOO 2.00 nd31 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2n31 2.00 CO2 2.00 NO2 2.00 XSOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO ko37 2.00 NO2 -1.00 XAOO CO2 dk33 CO2 2.00 NO2 -1.00 XAOO 2.00 vk32 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 2.0E-11 0.0e+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 dv32 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 Source 233 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1 3 3n45 NO 3 3n45 NO 3 3n46 NO 3 3n46 NO ! 3 3v44 NO 3 3v44 NO 3 3u43 NO 3 3d48 NO 3 3d48 NO 3 3k49 NO 3 3k49 NO 3 3k40 NO 3 3k45 NO 3 3k45 NO ! 3 3k47 NO 3 3k47 NO 3 3k48 NO 3 3d45 NO 3 3d45 NO 3 3k46 NO 3 3k46 NO 3 3k4A NO 3 3n47 NO 2 ! 1 ! 2 ! 1 2 ! ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 ! ! 1 ! 2 3 3n47 NO 3 3n48 NO 3 3n48 NO 3 3041 NO 3 3041 NO 3 3042 NO ! 3 3042 NO 3 3o41 NO 3 3o41 NO 3 3o42 NO 3 3o42 NO ! 3 3o43 NO 3 3o43 NO ! 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! k2 98 E/R 2.00 nd33 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 nd32 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 dv32 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1k33 CO2 NO2 -1.00 XAOO 2.00 2d32 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2k33 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 3o31 CO2 NO2 2.00 dk33 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 2k34 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 3o35 CO2 NO2 2.00 dd31 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 dk35 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 3o32 CO2 NO2 2.00 2n33 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2n34 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2032 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2031 2.00 CO2 2.00 NO2 2.00 XSOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 k031 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2o34 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 2o33 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 Source 234 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1 3 3o45 NO 3 3o45 NO 3 3o47 NO 3 3o47 NO 3 3o44 NO ! 3 3o44 NO 3 3o46 NO 3 3o46 NO 3 3h40 NO 3 3h40 NO 3 3g40 NO ! 3 3g40 NO 3 3d51 NO ! 3 3d52 NO 3 3d52 NO 3 3u51 NO 3 3v54 NO 3 3u52 NO 3 3u53 NO 3 3k59 NO 3 3k51 NO 3 3k51 NO 3 3k55 NO 3 3d53 NO 3 3d53 NO 3 3d54 NO 3 3k52 NO 3 3k52 NO 3 3k53 NO 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 ! 1 ! 2 ! ! ! ! ! ! 1 ! 2 ! ! 1 ! 2 ! ! 1 ! 2 ! ! 1 3 3n51 NO 3 3n51 NO 3 3n53 NO 3 3n53 NO 3 3n52 NO ! 3 3n52 NO 3 3n54 NO 3 3n54 NO ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R 2.00 d031 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2o32 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2o35 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 do35 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 ko37 2.00 NO2 -2.00 XAOO 2.00 HO 2.00 CO2 2.00 gk33 2.00 NO2 -2.00 XAOO 2.00 HO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0e+00 1.0E-11 0.0e+00 1.0E-11 0.0e+00 2.00 CO2 3d44 CO2 NO2 1.0E-11 0.0e+00 2.0E-11 0.0E+00 2.00 dd41 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO dk40 CO2 2.00 NO2 -1.00 XAOO 3v43 CO2 NO2 1d46 CO2 NO2 -1.00 XAOO 1d46 CO2 NO2 -1.00 XAOO 8k59 NO2 -1.00 XAOO 2.00 dk40 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 3k45 CO2 NO2 2.00 dd43 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 3d45 CO2 NO2 2.00 dk43 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 3k46 CO2 NO2 1.0E-11 0.0E+00 2.0E-11 0.0E+00 2.00 nd42 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2n41 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 nd43 2.00 CO2 2.00 HO2 2.00 NO2 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2n42 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 Source 235 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1 3 3v56 NO 3 3v56 NO ! 3 3n55 NO 3 3n55 NO 3 3d55 NO 3 3d55 NO 3 3d56 NO ! 3 3d56 NO 3 3k5A NO 3 3k5A NO 3 3k5C NO 3 3k5C NO 3 3k50 NO ! 3 3k50 NO 3 3k5B NO 3 3k5B NO 3 3k57 NO 3 3k57 NO ! 3 3k58 NO 3 3k58 NO 3 3051 NO 3 3051 NO 3 3052 NO 3 3052 NO ! 3 3053 NO 3 3053 NO 3 3o51 NO 3 3o51 NO 3 3o52 NO ! 3 3o52 NO 3 3o53 NO 3 3o53 NO 3 3o54 NO 3 3o54 NO ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! k2 98 E/R 2.00 dv46 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 nd46 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2d49 2.00 CO 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2d47 2.00 CO2 2.00 NO2 2.00 XSOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2k47 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2k44 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2k40 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2k4B 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 dk48 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 dk47 2.00 CO2 2.00 HO2 2.00 NO2 -2.00 XAOO 2.00 2042 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2041 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 2044 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2o46 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2o40 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2o4A 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 2.00 2o4C 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 Source 236 Table C.6 (continued) Peroxy radical reaction with NO Reaction 1 3 3o56 NO 3 3o56 NO 3 3o55 NO 3 3o55 NO ! 3 3o57 NO 3 3o57 NO 3 3061 NO 3 3061 NO 3 3o61 NO ! 3 3o61 NO 3 3r71 NO 3 3r71 NO 3 3t91 NO 3 3t91 NO 3 3tA1 NO ! 3 3tA1 NO ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 k2 98 E/R 2.00 2o43 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2o49 2.00 CO2 2.00 NO2 2.00 XPOO -2.00 XAOO 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 2.00 do49 2.00 NO2 -2.00 XAOO 2.00 HO2 2.00 CO2 2.00 2052 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2o52 2.00 CO2 2.00 NO2 2.00 XSOO 1.0E-11 0.0e+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 2.00 2r63 2.00 CO2 2.00 NO2 2.00 XTOO -2.00 XAOO 2.00 2t81 2.00 CO2 2.00 NO2 2.00 XSOO -2.00 XAOO 2.00 2t91 2.00 CO2 2.00 NO2 2.00 XPOO 1.0E-11 0.0E+00 3.5E-12 0.0E+00 3.5E-12 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 1.0E-11 0.0E+00 -2.00 XAOO 1.0E-11 0.0E+00 Source 237 Table C.7 Peroxy radical reactions with HO2 . 2 2n11 HO2 2 2011 HO2 2 2o11 HO2 2 2p21 HO2 2 2d21 HO2 2 2a21 HO2 2 2g21 HO2 2 2n22 HO2 2 2n23 HO2 2 2021 HO2 2 2o21 HO2 2 2v31 HO2 2 2d33 HO2 2 2a32 HO2 2 2n31 HO2 2 2n35 HO2 2 2d32 HO2 2 2d34 HO2 2 2k33 HO2 2 2a31 HO2 2 2d31 HO2 2 2k34 HO2 2 2n32 HO2 2 2n33 HO2 2 2n34 HO2 Reaction hn11 -1.00 XPOO ! h011 O2 ! ho11 O2 -1.00 XPOO ! ph21 -1.00 XPOO ! hd21 -1.00 XPOO ! ah21 -1.00 XPOO ! gh21 -1.00 XPOO ! hn21 O2 -1.00 XPOO ! hn23 -1.00 XSOO ! h021 O2 -1.00 XPOO ! ho22 O2 -1.00 XPOO ! hv32 -1.00 XPOO ! hd31 -1.00 XPOO ! ah32 O2 -1.00 XPOO ! hn32 -1.00 XSOO ! hn35 -1.00 XPOO ! hd32 -1.00 XSOO ! hd34 -1.00 XPOO ! hk33 O2 -1.00 XPOO ! ah31 -1.00 XSOO ! hd33 -1.00 XSOO ! hk31 -1.00 XPOO ! hn31 O2 -1.00 XSOO ! hn33 -1.00 XPOO ! hn34 -1.00 XSOO ! k2 98 E/R 1.3E-11 -1.3E+03 5.6E-12 -8.0E+02 1.2E-11 -2.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 8.0E-12 -7.0E+02 1.0E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 a E/R set to average E/R for peroxy radicals, see text b Reaction added by Williams [1994a] c E/R set to average E/R for peroxy radicals, see text Source DeMore et al. [1997] Kirchner and Stockwell [1996] DeMore et al. [1997] Kirchner and Stockwell [1997] a b Kirchner and Stockwell [1996] c 238 Table C.7 (continued) Peroxy radical reactions with HO2 2 2031 HO2 2 2032 HO2 2 2o32 HO2 2 2o33 HO2 2 2o34 HO2 2 2o31 HO2 2 2o35 HO2 2 2p30 HO2 2 2p31 HO2 2 2d41 HO2 2 2d42 HO2 2 2k43 HO2 2 2a42 HO2 2 2d43 HO2 2 2d45 HO2 2 2g40 HO2 2 2n41 HO2 2 2n43 HO2 2 2n47 HO2 2 2n48 HO2 2 2n42 HO2 2 2n44 HO2 2 2n4a HO2 2 2n4b HO2 2 2d47 HO2 2 2d49 HO2 2 2k44 HO2 2 2k45 HO2 2 2k47 HO2 2 2a41 HO2 2 2d44 HO2 2 2d48 HO2 2 2k40 HO2 2 2k42 HO2 2 2k48 HO2 2 2k49 HO2 2 2k4B HO2 2 2a43 HO2 2 2a47 HO2 2 2k46 HO2 2 2k4C HO2 2 2n45 HO2 2 2n46 HO2 Reaction h031 O2 -1.00 XSOO ! h032 O2 -1.00 XPOO ! ho34 O2 -1.00 XSOO ! ho35 O2 -1.00 XPOO ! ho33 O2 -1.00 XPOO ! ho32 -1.00 XSOO ! ho31 -1.00 XPOO ! ph30 -1.00 XPOO ! ph31 -1.00 XSOO ! hd41 -1.00 XSOO ! hd42 -1.00 XSOO ! hk43 O2 -1.00 XPOO ! ah43 -1.00 XSOO ! hd44 O2 -1.00 XSOO ! hd43 -1.00 XPOO ! gh40 -1.00 XTOO ! hn45 -1.00 XSOO ! hn48 -1.00 XPOO ! hn41 -1.00 XTOO ! hn43 O2 -1.00 XSOO ! hn46 -1.00 XSOO ! hn47 -1.00 XPOO ! hn49 -1.00 XSOO ! hn4a -1.00 XPOO ! hd46 -1.00 XSOO ! hd49 -1.00 XPOO ! hk41 O2 -1.00 XSOO ! hk42 O2 -1.00 XPOO ! hk46 -1.00 XPOO ! ah41 -1.00 XSOO ! hd45 O2 -1.00 XTOO ! hd47 -1.00 XSOO ! hk40 -1.00 XPOO ! hk44 O2 -1.00 XSOO ! hk45 -1.00 XPOO ! hk47 -1.00 XPOO ! hk4B -1.00 XPOO ! ah42 -1.00 XTOO ! ah44 -1.00 XPOO ! hk4D -1.00 XPOO ! hk4C -1.00 XPOO ! hn44 O2 -1.00 XSOO ! hn42 O2 -1.00 XTOO ! a Reaction added by Williams [1994a] k2 98 E/R 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 Source a a 239 Table C.7 (continued) Peroxy radical reactions with HO2 2 2041 HO2 2 2042 HO2 2 2043 HO2 2 2044 HO2 2 2o40 HO2 2 2o42 HO2 2 2o43 HO2 2 2o44 HO2 2 2o45 HO2 2 2o46 HO2 2 2o4A HO2 2 2o4C HO2 2 2o48 HO2 2 2o49 HO2 2 2o4B HO2 2 2o4D HO2 2 2d51 HO2 2 2d53 HO2 2 2d57 HO2 2 2d5A HO2 2 2d52 HO2 2 2d55 HO2 2 2d56 HO2 2 2d54 HO2 2 2n51 HO2 2 2n52 HO2 2 2n55 HO2 2 2n56 HO2 2 2n57 HO2 2 2n58 HO2 2 2n59 HO2 2 2n5a HO2 2 2d50 HO2 2 2d58 HO2 2 2u51 HO2 2 2u52 HO2 2 2k51 HO2 2 2k61 HO2 2 2k52 HO2 2 2k53 HO2 2 2n53 HO2 2 2n54 HO2 2 2h53 HO2 2 2h54 HO2 Reaction h041 O2 -1.00 XSOO ! h042 O2 -1.00 XPOO ! h043 O2 -1.00 XTOO ! h044 O2 -1.00 XPOO ! ho40 -1.00 XPOO ! ho41 O2 -1.00 XPOO ! ho42 O2 -1.00 XSOO ! ho43 O2 -1.00 XTOO ! ho45 -1.00 XPOO ! ho46 -1.00 XPOO ! ho4A -1.00 XPOO ! ho4C -1.00 XPOO ! ho4E -1.00 XPOO ! ho4F -1.00 XPOO ! ho4B -1.00 XPOO ! ho4D -1.00 XPOO ! hd51 -1.00 XTOO ! hd53 -1.00 XSOO ! hd58 -1.00 XSOO ! hd50 -1.00 XTOO ! hd52 -1.00 XSOO ! hd55 O2 -1.00 XSOO ! hd56 O2 -1.00 XTOO ! hd54 -1.00 XPOO ! hn55 O2 -1.00 XTOO ! hn56 O2 -1.00 XSOO ! hn5a O2 -1.00 XSOO ! hn5b O2 -1.00 XSOO ! hn5c O2 -1.00 XSOO ! hn5d O2 -1.00 XSOO ! hn5e O2 -1.00 XSOO ! hn5f O2 -1.00 XPOO ! hd5A -1.00 XSOO ! hd57 -1.00 XSOO ! hu51 O2 -1.00 XTOO ! hu52 O2 -1.00 XSOO ! hk51 -1.00 XTOO ! hk61 O2 -1.00 XSOO ! hk53 O2 -1.00 XSOO ! hk54 O2 -1.00 XSOO ! hn54 -1.00 XSOO ! hn53 -1.00 XTOO ! hh53 -1.00 XSOO ! hh54 -1.00 XTOO ! a New Reaction, added by Williams [1994a] k2 98 E/R 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 9.0E-12 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 Source a a a a a a a a a 240 Table C.7 (continued) Peroxy radical reactions with HO2 2 2051 HO2 2 2052 HO2 2 2053 HO2 2 2054 HO2 2 2055 HO2 2 2056 HO2 2 2057 HO2 2 2o51 HO2 2 2o52 HO2 2 2o55 HO2 2 2o56 HO2 2 2o57 HO2 2 2o58 HO2 2 2o59 HO2 2 2o50 HO2 2 2o53 HO2 2 2o54 HO2 2 2h51 HO2 2 2h52 HO2 2 2o5A HO2 2 2o5B HO2 2 2a51 HO2 2 2a50 HO2 2 2a53 HO2 2 2r63 HO2 2 2r61 HO2 2 2r62 HO2 2 2d61 HO2 2 2d62 HO2 2 2061 HO2 2 2062 HO2 2 2063 HO2 2 2o61 HO2 2 2o62 HO2 2 2o63 HO2 2 2o64 HO2 2 2r72 HO2 2 2r75 HO2 2 2r71 HO2 2 2r73 HO2 2 2r74 HO2 2 2u71 HO2 2 2t71 HO2 2 2e72 HO2 2 2h71 HO2 Reaction h051 O2 -1.00 XSOO ! h052 O2 -1.00 XSOO ! h053 -1.00 XPOO ! h054 -1.00 XSOO ! h055 -1.00 XSOO ! h056 -1.00 XPOO ! h057 -1.00 XTOO ! ho52 O2 -1.00 XSOO ! ho51 O2 -1.00 XSOO ! ho5C O2 -1.00 XPOO ! ho56 -1.00 XSOO ! ho57 -1.00 XPOO ! ho58 -1.00 XPOO ! ho59 -1.00 XPOO ! ho50 -1.00 XSOO ! ho53 -1.00 XSOO ! ho54 -1.00 XSOO ! hh51 -1.00 XSOO ! hh51 -1.00 XTOO ! ho5B -1.00 XSOO ! ho5D -1.00 XPOO ! ah50 -1.00 XSOO ! ah51 -1.00 XSOO ! ah52 -1.00 XPOO ! h064 O2 -1.00 XTOO ! hr62 -1.00 XSOO ! hr61 -1.00 XSOO ! hd61 -1.00 XTOO ! hd62 -1.00 XTOO ! h061 O2 -1.00 XSOO ! h062 O2 -1.00 XTOO ! h063 O2 -1.00 XPOO ! ho62 O2 -1.00 XPOO ! ho64 -1.00 XPOO ! ho61 O2 -1.00 XPOO ! ho63 O2 -1.00 XPOO ! hr75 O2 -1.00 XPOO ! hr72 -1.00 XTOO ! hr71 -1.00 XTOO ! hr73 O2 -1.00 XTOO ! hr74 O2 -1.00 XTOO ! hu71 O2 -1.00 XPOO ! ht71 O2 -1.00 XTOO ! eh72 O2 -1.00 XTOO ! hh71 -1.00 XTOO ! k2 98 E/R 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 Source 241 Table C.7 (continued) Peroxy radical reactions with HO2 2 2071 HO2 2 2o71 HO2 2 2r81 HO2 2 2r82 HO2 2 2t81 HO2 2 2081 HO2 2 2o81 HO2 2 2t91 HO2 2 2nA1 HO2 2 2tA1 HO2 3 3v22 HO2 3 3d21 HO2 3 3a21 HO2 3 3n21 HO2 3 3v21 HO2 3 3021 HO2 3 3o23 HO2 3 3h21 HO2 3 3o22 HO2 3 3n31 HO2 3 3d31 HO2 3 3n32 HO2 3 3u31 HO2 3 3v32 HO2 3 3d33 HO2 3 3k33 HO2 3 3a32 HO2 3 3d32 HO2 3 3k31 HO2 3 3u32 HO2 3 3a31 HO2 3 3a33 HO2 3 3n34 HO2 3 3031 HO2 3 3o31 HO2 3 3o35 HO2 3 3o32 HO2 3 3o33 HO2 3 3o34 HO2 3 3u41 HO2 3 3u44 HO2 3 3d41 HO2 3 3v41 HO2 3 3v42 HO2 3 3u42 HO2 Reaction h071 O2 -1.00 XSOO ! ho71 O2 -1.00 XPOO ! hr81 -1.00 XTOO ! hr82 -1.00 XTOO ! ht83 O2 -1.00 XSOO ! ht81 O2 -1.00 XSOO ! ht82 O2 -1.00 XSOO ! ht91 O2 -1.00 XPOO ! hnA1 O2 -1.00 XTOO ! htA1 O2 -1.00 XTOO ! gv22 -1.00 XAOO ! gd21 O2 -1.00 XAOO ! ag21 -1.00 XAOO ! gn21 -1.00 XAOO ! gv21 -1.00 XAOO ! g021 O2 -1.00 XAOO ! go23 -1.00 XAOO ! gh21 -1.00 XAOO ! go22 -1.00 XAOO ! gn31 -1.00 XAOO ! gd31 -1.00 XAOO ! gn32 -1.00 XAOO ! gu31 -1.00 XAOO ! gv32 -1.00 XAOO ! gd33 -1.00 XAOO ! gk33 O2 -1.00 XAOO ! ag32 -1.00 XAOO ! gd32 -1.00 XAOO ! gk31 -1.00 XAOO ! gu32 -1.00 XAOO ! ag31 -1.00 XAOO ! ag33 -1.00 XAOO ! gn34 -1.00 XAOO ! g031 O2 -1.00 XAOO ! go31 -1.00 XAOO ! go33 -1.00 XAOO ! go32 -1.00 XAOO ! go34 -1.00 XAOO ! go35 -1.00 XAOO ! gu41 -1.00 XAOO ! gu44 -1.00 XAOO ! gd41 -1.00 XAOO ! gv41 -1.00 XAOO ! gv42 -1.00 XAOO ! gu42 O2 -1.00 XAOO ! k2 98 E/R 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.0E-11 -9.8E+02 1.3E-11 -1.3E+03 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 1.3E-11 -1.3E+03 1.0E-11 -9.8E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 Source Kirchner and Stockwell [1997] 242 Table C.7 (continued) Peroxy radical reactions with HO2 3 3d46 HO2 3 3d47 HO2 3 3d43 HO2 3 3d44 HO2 3 3n42 HO2 3 3n41 HO2 3 3n44 HO2 3 3n49 HO2 3 3n43 HO2 3 3v43 HO2 3 3d42 HO2 3 3n45 HO2 3 3v44 HO2 3 3u43 HO2 3 3d48 HO2 3 3k49 HO2 3 3k40 HO2 3 3k45 HO2 3 3k47 HO2 3 3k48 HO2 3 3d45 HO2 3 3k46 HO2 3 3k4A HO2 3 3n47 HO2 3 3n48 HO2 3 3041 HO2 3 3042 HO2 3 3o41 HO2 3 3o42 HO2 3 3o43 HO2 3 3o45 HO2 3 3o47 HO2 3 3o44 HO2 3 3o46 HO2 3 3h40 HO2 3 3g40 HO2 3 3d51 HO2 3 3d52 HO2 3 3u51 HO2 3 3v54 HO2 3 3u52 HO2 3 3u53 HO2 3 3k59 HO2 3 3k51 HO2 3 3k55 HO2 Reaction gd46 -1.00 XAOO ! gd47 -1.00 XAOO ! gd43 -1.00 XAOO ! gd44 -1.00 XAOO ! gn42 -1.00 XAOO ! gn41 -1.00 XAOO ! gn49 -1.00 XAOO ! gn40 -1.00 XAOO ! gn43 -1.00 XAOO ! gv43 -1.00 XAOO ! gd42 -1.00 XAOO ! gn45 -1.00 XAOO ! gv44 -1.00 XAOO ! gu43 -1.00 XAOO ! gd48 -1.00 XAOO ! gd49 -1.00 XAOO ! gk40 -1.00 XAOO ! gk45 -1.00 XAOO ! gk47 -1.00 XAOO ! gk48 -1.00 XAOO ! gd45 -1.00 XAOO ! gk46 -1.00 XAOO ! gk4A -1.00 XAOO ! gn47 -1.00 XAOO ! gn48 -1.00 XAOO ! g042 O2 -1.00 XAOO ! g041 O2 -1.00 XAOO ! go41 O2 -1.00 XAOO ! go44 -1.00 XAOO ! go42 -1.00 XAOO ! go45 -1.00 XAOO ! go47 -1.00 XAOO ! go43 -1.00 XAOO ! go46 -1.00 XAOO ! gh40 -1.00 XAOO ! gg40 -1.00 XAOO ! gd51 -1.00 XAOO ! gd52 -1.00 XAOO ! gu51 -1.00 XAOO ! gv53 -1.00 XAOO ! gu52 O2 -1.00 XAOO ! gu53 O2 -1.00 XAOO ! gk5D -1.00 XAOO ! gk51 -1.00 XAOO ! gk54 -1.00 XAOO ! k2 98 E/R 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 Source 243 Table C.7 (continued) Peroxy radical reactions with HO2 3 3d53 HO2 3 3d54 HO2 3 3k52 HO2 3 3k53 HO2 3 3n51 HO2 3 3n53 HO2 3 3n52 HO2 3 3n54 HO2 3 3v56 HO2 3 3n55 HO2 3 3d55 HO2 3 3d56 HO2 3 3k5A HO2 3 3k5C HO2 3 3k50 HO2 3 3k5B HO2 3 3k57 HO2 3 3k58 HO2 3 3051 HO2 3 3052 HO2 3 3053 HO2 3 3o51 HO2 3 3o52 HO2 3 3o53 HO2 3 3o54 HO2 3 3o56 HO2 3 3o55 HO2 3 3o57 HO2 3 3061 HO2 3 3o61 HO2 3 3r71 HO2 3 3t91 HO2 3 3tA1 HO2 3 3v22 HO2 3 3d21 HO2 3 3a21 HO2 3 3n21 HO2 3 3v21 HO2 3 3021 HO2 3 3o23 HO2 3 3h21 HO2 3 3o22 HO2 3 3n31 HO2 3 3d31 HO2 3 3n32 HO2 Reaction gd53 -1.00 XAOO ! gd54 -1.00 XAOO ! gk52 -1.00 XAOO ! gk55 -1.00 XAOO ! gn51 -1.00 XAOO ! gn53 -1.00 XAOO ! gn52 -1.00 XAOO ! gn54 -1.00 XAOO ! gv56 -1.00 XAOO ! gn55 -1.00 XAOO ! gd55 -1.00 XAOO ! gd56 -1.00 XAOO ! gk5A -1.00 XAOO ! gk5C -1.00 XAOO ! gk50 -1.00 XAOO ! gk5B -1.00 XAOO ! gk57 -1.00 XAOO ! gk58 -1.00 XAOO ! g051 O2 -1.00 XAOO ! g053 O2 -1.00 XAOO ! g052 O2 -1.00 XAOO ! go51 -1.00 XAOO ! go52 -1.00 XAOO ! go53 -1.00 XAOO ! go54 -1.00 XAOO ! go56 -1.00 XAOO ! go55 -1.00 XAOO ! go50 -1.00 XAOO ! g061 -1.00 XAOO ! go61 -1.00 XAOO ! gr71 O2 -1.00 XAOO ! gt91 O2 -1.00 XAOO ! gtA1 O2 -1.00 XAOO ! av22 O3 -1.00 XAOO ! ad21 O3 -1.00 XAOO ! aa21 O3 -1.00 XAOO ! an21 O3 -1.00 XAOO ! av21 O3 -1.00 XAOO ! a021 O3 -1.00 XAOO ! ao23 O3 -1.00 XAOO ! ah21 O3 -1.00 XAOO ! ao22 O3 -1.00 XAOO ! an31 O3 -1.00 XAOO ! ad31 O3 -1.00 XAOO ! an32 O3 -1.00 XAOO ! a New Reaction k2 98 E/R 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 7.3E-12 -5.5E+02 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 Source a a a a a Kirchner and Stockwell [1997]a a a a a a a 244 Table C.7 (continued) Peroxy radical reactions with HO2 3 3u31 HO2 3 3v32 HO2 3 3d33 HO2 3 3k33 HO2 3 3a32 HO2 3 3d32 HO2 3 3k31 HO2 3 3u32 HO2 3 3a31 HO2 3 3a33 HO2 3 3n34 HO2 3 3031 HO2 3 3o31 HO2 3 3o35 HO2 3 3o32 HO2 3 3o33 HO2 3 3o34 HO2 3 3u41 HO2 3 3u44 HO2 3 3d41 HO2 3 3v41 HO2 3 3v42 HO2 3 3u42 HO2 3 3d46 HO2 3 3d47 HO2 3 3d43 HO2 3 3d44 HO2 3 3n42 HO2 3 3n41 HO2 3 3n44 HO2 3 3n49 HO2 3 3n43 HO2 3 3v43 HO2 3 3d42 HO2 3 3n45 HO2 3 3v44 HO2 3 3u43 HO2 3 3d48 HO2 3 3k49 HO2 3 3k40 HO2 3 3k45 HO2 3 3k47 HO2 3 3k48 HO2 3 3d45 HO2 Reaction au31 O3 -1.00 XAOO ! av32 O3 -1.00 XAOO ! ad33 O3 -1.00 XAOO ! ak33 O3 -1.00 XAOO ! aa32 O3 -1.00 XAOO ! ad32 O3 -1.00 XAOO ! ak31 O3 -1.00 XAOO ! au32 O3 -1.00 XAOO ! aa31 O3 -1.00 XAOO ! aa33 O3 -1.00 XAOO ! an35 O3 -1.00 XAOO ! a031 O3 -1.00 XAOO ! ao31 O3 -1.00 XAOO ! ao35 O3 -1.00 XAOO ! ao32 O3 -1.00 XAOO ! ao33 O3 -1.00 XAOO ! ao34 O3 -1.00 XAOO ! au41 O3 -1.00 XAOO ! au44 O3 -1.00 XAOO ! ad41 O3 -1.00 XAOO ! av41 O3 -1.00 XAOO ! av42 O3 -1.00 XAOO ! au42 O3 -1.00 XAOO ! ad46 O3 -1.00 XAOO ! ad47 O3 -1.00 XAOO ! ad43 O3 -1.00 XAOO ! ad44 O3 -1.00 XAOO ! an42 O3 -1.00 XAOO ! an41 O3 -1.00 XAOO ! an44 O3 -1.00 XAOO ! an49 O3 -1.00 XAOO ! an43 O3 -1.00 XAOO ! av43 O3 -1.00 XAOO ! ad42 O3 -1.00 XAOO ! an45 O3 -1.00 XAOO ! av44 O3 -1.00 XAOO ! au43 O3 -1.00 XAOO ! ad48 O3 -1.00 XAOO ! ad49 O3 -1.00 XAOO ! ak40 O3 -1.00 XAOO ! ak45 O3 -1.00 XAOO ! ak47 O3 -1.00 XAOO ! ak48 O3 -1.00 XAOO ! ad45 O3 -1.00 XAOO ! a New Reaction k2 98 E/R 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 Source a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a 245 Table C.7 (continued) Peroxy radical reactions with HO2 3 3k46 HO2 3 3k4A HO2 3 3n47 HO2 3 3n48 HO2 3 3041 HO2 3 3042 HO2 3 3o41 HO2 3 3o42 HO2 3 3o43 HO2 3 3o45 HO2 3 3o47 HO2 3 3o44 HO2 3 3o46 HO2 3 3h40 HO2 3 3g40 HO2 3 3d51 HO2 3 3d52 HO2 3 3u51 HO2 3 3v54 HO2 3 3u52 HO2 3 3u53 HO2 3 3k59 HO2 3 3k51 HO2 3 3k55 HO2 3 3d53 HO2 3 3d54 HO2 3 3k52 HO2 3 3k53 HO2 3 3n51 HO2 3 3n53 HO2 3 3n52 HO2 3 3n54 HO2 3 3v56 HO2 3 3n55 HO2 3 3d55 HO2 3 3d56 HO2 3 3k5A HO2 3 3k5C HO2 3 3k50 HO2 3 3k5B HO2 3 3k57 HO2 3 3k58 HO2 Reaction ak46 O3 -1.00 XAOO ! ak4A O3 -1.00 XAOO ! an47 O3 -1.00 XAOO ! an48 O3 -1.00 XAOO ! a041 O3 -1.00 XAOO ! a042 O3 -1.00 XAOO ! ao41 O3 -1.00 XAOO ! ao42 O3 -1.00 XAOO ! ao43 O3 -1.00 XAOO ! ao45 O3 -1.00 XAOO ! ao47 O3 -1.00 XAOO ! ao44 O3 -1.00 XAOO ! ao46 O3 -1.00 XAOO ! ah42 O3 -1.00 XAOO ! ag40 O3 -1.00 XAOO ! ad51 O3 -1.00 XAOO ! ad52 O3 -1.00 XAOO ! au51 O3 -1.00 XAOO ! av53 O3 -1.00 XAOO ! au52 O3 -1.00 XAOO ! au53 O3 -1.00 XAOO ! ak59 O3 -1.00 XAOO ! ak51 O3 -1.00 XAOO ! ak54 O3 -1.00 XAOO ! ad53 O3 -1.00 XAOO ! ad54 O3 -1.00 XAOO ! ak52 O3 -1.00 XAOO ! ak55 O3 -1.00 XAOO ! an51 O3 -1.00 XAOO ! an53 O3 -1.00 XAOO ! an52 O3 -1.00 XAOO ! an54 O3 -1.00 XAOO ! av56 O3 -1.00 XAOO ! an55 O3 -1.00 XAOO ! ad55 O3 -1.00 XAOO ! ad56 O3 -1.00 XAOO ! ak5A O3 -1.00 XAOO ! ak5C O3 -1.00 XAOO ! ak50 O3 -1.00 XAOO ! ak5B O3 -1.00 XAOO ! ak57 O3 -1.00 XAOO ! ak58 O3 -1.00 XAOO ! a New Reaction k2 98 E/R 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 Source a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a 246 Table C.7 (continued) Peroxy radical reactions with HO2 3 3051 HO2 3 3052 HO2 3 3053 HO2 3 3o51 HO2 3 3o52 HO2 3 3o53 HO2 3 3o54 HO2 3 3o56 HO2 3 3o55 HO2 3 3o57 HO2 3 3061 HO2 3 3o61 HO2 3 3r71 HO2 3 3t91 HO2 3 3tA1 HO2 Reaction ! a051 O3 -1.00 XAOO ! a052 O3 -1.00 XAOO ! a053 O3 -1.00 XAOO ! ao51 O3 -1.00 XAOO ! ao52 O3 -1.00 XAOO ! ao53 O3 -1.00 XAOO ! ao54 O3 -1.00 XAOO ! ao56 O3 -1.00 XAOO ! ao55 O3 -1.00 XAOO ! ao57 O3 -1.00 XAOO ! a061 O3 -1.00 XAOO ! ao61 O3 -1.00 XAOO ! ar71 O3 -1.00 XAOO ! at91 O3 -1.00 XAOO ! atA1 O3 -1.00 XAOO a New Reaction k2 98 E/R 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 2.7E-12 -2.6E+03 Source a a a a a a a a a a a a a a a 247 Table C.8 Peroxy radical reactions with NO2 . 2 2011 NO2 (M) 2 2r63 NO2 3 3v22 NO2 3 3d21 NO2 3 3a21 NO2 3 3n21 NO2 3 3v21 NO2 3 3021 NO2 (M) 3 3o23 NO2 3 3h21 NO2 3 3o22 NO2 3 3n31 NO2 3 3d31 NO2 3 3n32 NO2 3 3u31 NO2 3 3v32 NO2 3 3d33 NO2 3 3k33 NO2 3 3a32 NO2 3 3d32 NO2 3 3k31 NO2 3 3u32 NO2 3 3a31 NO2 3 3a33 NO2 3 3n34 NO2 3 3031 NO2 3 3o31 NO2 3 3o35 NO2 3 3o32 NO2 3 3o33 NO2 3 3o34 NO2 3 3u41 NO2 3 3u44 NO2 3 3d41 NO2 3 3v41 NO2 3 3u42 NO2 3 3d46 NO2 3 3d47 NO2 3 3d43 NO2 3 3d44 NO2 3 3n42 NO2 3 3n41 NO2 3 3n44 NO2 3 3n49 NO2 3 3n43 NO2 Reaction n012 (M) ! 1r61 NO3 -1.00 XTOO ! pv22 -1.00 XAOO ! pd21 -1.00 XAOO ! pg21 -1.00 XAOO ! pn21 -1.00 XAOO ! pv21 -1.00 XAOO ! p021 -1.00 XAOO (M) ! po23 -1.00 XAOO ! ph21 -1.00 XAOO ! po22 -1.00 XAOO ! pn31 -1.00 XAOO ! pd31 -1.00 XAOO ! pn32 -1.00 XAOO ! pu31 -1.00 XAOO ! pv32 -1.00 XAOO ! pd33 -1.00 XAOO ! pk33 -1.00 XAOO ! pa32 -1.00 XAOO ! pd32 -1.00 XAOO ! pk31 -1.00 XAOO ! pu32 -1.00 XAOO ! pa31 -1.00 XAOO ! pa33 -1.00 XAOO ! pn34 -1.00 XAOO ! p031 -1.00 XAOO ! po31 -1.00 XAOO ! po35 -1.00 XAOO ! po32 -1.00 XAOO ! po33 -1.00 XAOO ! po34 -1.00 XAOO ! pu41 -1.00 XAOO ! pu43 -1.00 XAOO ! pd41 -1.00 XAOO ! pv41 -1.00 XAOO ! pu42 -1.00 XAOO ! pd46 -1.00 XAOO ! pd47 -1.00 XAOO ! pd43 -1.00 XAOO ! pd44 -1.00 XAOO ! pn42 -1.00 XAOO ! pn41 -1.00 XAOO ! pn44 -1.00 XAOO ! pn40 -1.00 XAOO ! pn43 -1.00 XAOO ! a Recommended by DeMore et al. [1997] k2 98 E/R 4.0E-12 -1.8E+03 7.0E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0e+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0e+00 8.6E-12 0.0e+00 8.6E-12 0.0e+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 Source Madronich and Calvert [1989]a Madronich and Calvert [1989] 248 Table C.7 (continued) Peroxy radical reactions with NO2 3 3v43 NO2 3 3d42 NO2 3 3n45 NO2 3 3v44 NO2 3 3u43 NO2 3 3d48 NO2 3 3k49 NO2 3 3k40 NO2 3 3k45 NO2 3 3k47 NO2 3 3k48 NO2 3 3d45 NO2 3 3k46 NO2 3 3k4A NO2 3 3n47 NO2 3 3n48 NO2 3 3041 NO2 3 3042 NO2 3 3o41 NO2 3 3o42 NO2 3 3o43 NO2 3 3o45 NO2 3 3o47 NO2 3 3o44 NO2 3 3o46 NO2 3 3h40 NO2 3 3g40 NO2 3 3d51 NO2 3 3d52 NO2 3 3u51 NO2 3 3v54 NO2 3 3u52 NO2 3 3u53 NO2 3 3k59 NO2 3 3k51 NO2 3 3k55 NO2 3 3d53 NO2 3 3d54 NO2 3 3k52 NO2 3 3k53 NO2 3 3n51 NO2 3 3n53 NO2 3 3n52 NO2 3 3n54 NO2 3 3v56 NO2 Reaction ! pv43 -1.00 XAOO ! pd42 -1.00 XAOO ! pn49 -1.00 XAOO ! pv44 -1.00 XAOO ! pu44 -1.00 XAOO ! pd48 -1.00 XAOO ! pk49 -1.00 XAOO ! pk40 -1.00 XAOO ! pk45 -1.00 XAOO ! pk47 -1.00 XAOO ! pk48 -1.00 XAOO ! pd45 -1.00 XAOO ! pk46 -1.00 XAOO ! pk4A -1.00 XAOO ! pn47 -1.00 XAOO ! pn48 -1.00 XAOO ! p042 -1.00 XAOO ! p041 -1.00 XAOO ! po42 -1.00 XAOO ! po41 -1.00 XAOO ! po43 -1.00 XAOO ! po45 -1.00 XAOO ! po47 -1.00 XAOO ! po44 -1.00 XAOO ! po46 -1.00 XAOO ! ph40 -1.00 XAOO ! pg40 -1.00 XAOO ! pd51 -1.00 XAOO ! pd52 -1.00 XAOO ! pu51 -1.00 XAOO ! pv53 -1.00 XAOO ! pu53 -1.00 XAOO ! pu52 -1.00 XAOO ! pk59 -1.00 XAOO ! pk51 -1.00 XAOO ! pk54 -1.00 XAOO ! pd53 -1.00 XAOO ! pd54 -1.00 XAOO ! pk52 -1.00 XAOO ! pk55 -1.00 XAOO ! pn51 -1.00 XAOO ! pn53 -1.00 XAOO ! pn52 -1.00 XAOO ! pn54 -1.00 XAOO ! pv56 -1.00 XAOO k2 98 E/R 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 Source 249 Table C.7 (continued) Peroxy radical reactions with NO2 3 3n55 NO2 3 3d55 NO2 3 3d56 NO2 3 3k5A NO2 3 3k5C NO2 3 3k50 NO2 3 3k5B NO2 3 3k57 NO2 3 3k58 NO2 3 3051 NO2 3 3052 NO2 3 3053 NO2 3 3o51 NO2 3 3o52 NO2 3 3o53 NO2 3 3o54 NO2 3 3o56 NO2 3 3o55 NO2 3 3o57 NO2 3 3061 NO2 3 3o61 NO2 3 3r71 NO2 3 3t91 NO2 3 3tA1 NO2 Reaction ! pn55 -1.00 XAOO ! pd55 -1.00 XAOO ! pd56 -1.00 XAOO ! pk5A -1.00 XAOO ! pk5C -1.00 XAOO ! pk50 -1.00 XAOO ! pk5B -1.00 XAOO ! pk57 -1.00 XAOO ! pk58 -1.00 XAOO ! p051 -1.00 XAOO ! p052 -1.00 XAOO ! p053 -1.00 XAOO ! po51 -1.00 XAOO ! po52 -1.00 XAOO ! po53 -1.00 XAOO ! po54 -1.00 XAOO ! po56 -1.00 XAOO ! po55 -1.00 XAOO ! po50 -1.00 XAOO ! p061 -1.00 XAOO ! po61 -1.00 XAOO ! pr71 -1.00 XAOO ! pt91 -1.00 XAOO ! ptA1 -1.00 XAOO k2 98 E/R 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 8.6E-12 0.0E+00 Source 250 Table C.9 Peroxy Radical Reactions with NO3 . 2 2011 NO3 3 3021 NO3 ! ! Reaction CH3O NO2 O2 -1.00 XPOO 8021 NO2 O2 -1.00 XAOO k2 98 E/R 1.2E-12 0.0E+00 4.0E-12 0.0E+00 Source Kirchner and Stockwell [1996] a Kirchner and Stockwell [1996]a a Products from Canosa-Mas et al. [1996] Table C.10 Peroxy radical reactions with methyl peroxy radical. 2011 2011 2011 2021 2011 2021 ! 1 ! 2 ! 1 2011 2031 2011 2031 2011 2032 2011 2032 2011 2041 2011 2041 ! 2011 2042 2011 2042 2011 2043 2011 2043 2011 2044 ! 2011 2044 2011 2051 2011 2051 2011 2052 2011 2052 2011 2053 ! 2011 2053 2011 2054 2011 2054 ! 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! Reaction 0.80 CH3O 0.60 CH2O 0.60 o011 0.96 CH3O 0.96 1021 0.52 CH2O 0.52 o021 0.52 d021 0.52 o011 -2.00 XPOO 0.96 CH3O 0.96 1032 0.52 CH2O 0.52 o032 0.52 k031 0.52 o011 -2.00 XSOO CH3O 1031 0.50 CH2O 0.50 o031 0.50 d031 0.50 o011 -2.00 XPOO CH3O 1043 0.50 CH2O 0.50 o041 0.50 k041 0.50 o011 -2.00 XSOO CH3O 1042 0.50 CH2O 0.50 o042 0.50 d041 0.50 o011 -2.00 XPOO k2 98 E/R 3.7E-13 -4.2E+02 1.0E-13 -1.6E+02 1.0E-13 -1.6E+02 2.0E-14 8.8E+02 2.0E-14 8.8E+02 3.8E-13 -5.1E+02 3.8E-13 -5.1E+02 1.8E-15 5.4E+02 1.8E-15 5.4E+02 0.60 o043 -2.00 XTOO CH3O 1044 0.50 CH2O 0.50 o044 2.2E-14 -8.6E+02 2.2E-14 -8.6E+02 3.3E-15 1.7E+03 3.3E-15 1.7E+03 2.2E-14 -8.6E+02 0.50 d042 0.50 o011 -2.00 XPOO CH3O 1051 0.50 CH2O 0.50 o054 0.50 k051 0.50 o011 -2.00 XSOO CH3O 1052 0.50 CH2O 0.50 o052 0.50 k053 0.50 o011 -2.00 XSOO CH3O 1053 0.50 CH2O 0.50 o053 2.2E-14 -8.6E+02 1.6E-15 1.9E+02 1.6E-15 1.9E+02 1.6E-15 1.9E+02 1.6E-15 1.9E+02 1.9E-14 -1.2E+03 0.50 d051 0.50 o011 -2.00 XPOO CH3O 1054 0.50 CH2O 0.50 o054 0.50 k051 0.50 o011 -2.00 XSOO 1.9E-14 -1.2E+03 1.6E-15 1.9E+02 1.6E-15 1.9E+02 1.40 CH3O 1.40 1044 0.60 CH2O Source Lightfoot et al. [1992] a;b c d;e d;e f a 2021 self reaction rate from Kirchner and Stockwell [1996] based on Lightfoot et al. [1992] b E/R calculated from self–reaction activation temperature c 2031 self reaction rate from Kirchner and Stockwell [1996], from Lightfoot et al. [1992] d upper limit for 2032 self reaction rate from Kirchner and Stockwell [1996], from Lightfoot et al. [1992] e E/R calculated from estimated self-reaction activation temperatures f 2043 self reaction rate from Kirchner and Stockwell [1996], from LeBras [1997] 251 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2055 2011 2055 ! 2011 2056 2011 2056 2011 2057 2011 2057 2011 2061 2011 2061 ! 2011 2062 2011 2062 2011 2063 2011 2063 2011 2071 ! 2011 2071 2011 2081 2011 2081 2011 2a21 2011 2a21 2011 2a31 ! 2011 2a31 2011 2a41 2011 2a41 2011 2a42 2011 2a42 ! 2011 2g21 2011 2g21 2011 2u51 2011 2u51 2011 2u52 2011 2u52 ! 2011 2u71 2011 2u71 2011 2e72 2011 2e72 2011 2d21 ! 2011 2d21 2011 2d31 2011 2d31 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R CH3O 1055 0.50 CH2O 0.50 o055 0.50 k052 0.50 o011 -2.00 XSOO 1.6E-15 1.9E+02 1.6E-15 1.9E+02 CH3O 1056 0.50 CH2O 0.50 o056 0.50 d053 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1057 0.60 CH2O 0.60 o057 -2.00 XTOO CH3O 1061 0.50 CH2O 0.50 o061 0.50 k062 0.50 o011 -2.00 XSOO 1.9E-14 -1.2E+03 1.9E-14 -1.2E+03 1.3E-16 1.6E+03 1.3E-16 1.6E+03 1.4E-15 -1.6E+02 1.4E-15 -1.6E+02 1.40 CH3O 1.40 1062 0.60 CH2O 0.60 o062 -2.00 XTOO CH3O 1063 0.50 CH2O 0.50 o063 0.50 d061 0.50 o011 -2.00 XPOO CH3O 1071 0.50 CH2O 0.50 o071 1.1E-16 1.2E+03 1.1E-16 1.2E+03 1.7E-14 -1.6E+03 1.7E-14 -1.6E+03 1.2E-15 -5.1E+02 0.50 k071 0.50 o011 -2.00 XSOO CH3O 1081 0.50 CH2O 0.50 o081 0.50 k081 0.50 o011 -2.00 XSOO CH3O 1a21 0.50 CH2O 0.50 ao23 0.50 ad21 0.50 o011 -2.00 XPOO CH3O 1a31 0.50 CH2O 0.50 ao34 1.2E-15 -5.1E+02 1.2E-15 -1.2E+03 a 1.2E-15 -1.2E+03 a 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.4E-14 2.9E+02 0.50 ak33 0.50 o011 -2.00 XSOO CH3O 1a41 0.50 CH2O 0.50 ao45 0.50 ak4C 0.50 o011 -2.00 XSOO CH3O 1a43 0.50 CH2O 0.50 ak40 0.50 ak4D 0.50 o011 -2.00 XSOO 1.4E-14 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 CH3O 1g21 0.50 CH2O 0.50 go23 0.50 gd21 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1u52 0.60 CH2O 0.60 uo52 -2.00 XTOO CH3O 1u51 0.50 CH2O 0.50 uo52 0.50 uk51 0.50 o011 -2.00 XSOO 1.9E-13 2.9E+02 1.9E-13 2.9E+02 8.7E-16 2.9E+02 8.7E-16 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 CH3O 1u71 0.50 CH2O 0.50 uk71 0.50 ud71 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1e71 0.60 CH2O 0.60 ek71 -2.00 XTOO CH3O 1d21 0.50 CH2O 0.50 do23 1.5E-14 -7.1E+02 1.5E-14 -7.1E+02 7.0E-16 2.9E+02 7.0E-16 2.9E+02 1.9E-13 2.9E+02 0.50 dd21 0.50 o011 -2.00 XPOO CH3O 1d32 0.50 CH2O 0.50 do31 0.50 dk35 0.50 o011 -2.00 XSOO 1.9E-13 2.9E+02 1.4E-14 2.9E+02 1.4E-14 2.9E+02 a E/R calculated from estimated self-reaction activation temperatures Source 252 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2d32 2011 2d32 2011 2d33 2011 2d33 ! 2011 2d34 2011 2d34 2011 2d41 2011 2d41 2011 2d42 ! 2011 2d42 2011 2d43 2011 2d43 2011 2d44 2011 2d44 2011 2d45 ! 2011 2d45 2011 2d47 2011 2d47 2011 2d48 2011 2d48 ! 2011 2d49 2011 2d49 2011 2g40 2011 2g40 2011 2d50 2011 2d50 ! 2011 2d51 2011 2d51 2011 2d52 2011 2d52 2011 2d53 ! 2011 2d53 2011 2d54 2011 2d54 2011 2d55 2011 2d55 2011 2d56 ! 2011 2d56 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 k2 98 E/R CH3O 1d31 0.50 CH2O 0.50 do34 0.50 dk33 0.50 o011 -2.00 XSOO CH3O 1d34 0.50 CH2O 0.50 dk35 0.50 dd32 0.50 o011 -2.00 XPOO 1.4E-14 2.9E+02 1.4E-14 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 CH3O 1d35 0.50 CH2O 0.50 do35 0.50 dd33 0.50 o011 -2.00 XPOO CH3O 1d41 0.50 CH2O 0.50 dv45 0.50 dv42 0.50 o011 -2.00 XSOO CH3O 1d42 0.50 CH2O 0.50 dv45 2.5E-14 -7.1E+02 2.5E-14 -7.1E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 0.50 dv44 0.50 o011 -2.00 XSOO CH3O 1d44 0.50 CH2O 0.50 dd42 0.50 dd43 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1d43 0.60 CH2O 0.60 do49 -2.00 XTOO CH3O 1d45 0.50 CH2O 0.50 dk47 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.5E-13 2.9E+02 0.50 dd43 0.50 o011 -2.00 XPOO CH3O 1d47 0.50 CH2O 0.50 do44 0.50 dk4C 0.50 o011 -2.00 XSOO CH3O 1d48 0.50 CH2O 0.50 do45 0.50 dk4A 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.8E-15 -7.1E+02 1.8E-15 -7.1E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 CH3O 1d49 0.50 CH2O 0.50 do43 0.50 dd45 0.50 o011 -2.00 XPOO 1.40 1g40 1.40 CH3O 0.60 go43 0.60 CH2O -2.00 XTOO CH3O 1d5A 0.50 CH2O 0.50 do57 0.50 dk5G 0.50 o011 -2.00 XSOO 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.6E-15 -7.1E+02 1.6E-15 -7.1E+02 1.40 CH3O 1.40 1d51 0.60 CH2O 0.60 dv56 -2.00 XTOO CH3O 1d52 0.50 CH2O 0.50 dk59 0.50 dk53 0.50 o011 -2.00 XSOO CH3O 1d53 0.50 CH2O 0.50 dv56 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 0.50 dv55 0.50 o011 -2.00 XSOO CH3O 1d54 0.50 CH2O 0.50 dk58 0.50 dd54 0.50 o011 -2.00 XPOO CH3O 1d56 0.50 CH2O 0.50 dk59 0.50 dk5B 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1d55 0.60 CH2O 0.60 dd56 1.1E-14 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 8.7E-16 2.9E+02 -2.00 XTOO 8.7E-16 2.9E+02 Source 253 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2d57 2011 2d57 2011 2d58 2011 2d58 2011 2d59 ! 2011 2d59 2011 2d5A 2011 2d5A 2011 2d61 2011 2d61 ! 2011 2d62 2011 2d62 2011 2d82 2011 2d82 2011 2h51 2011 2h51 ! 2011 2h52 2011 2h52 2011 2h53 2011 2h53 2011 2h54 ! 2011 2h54 2011 2h71 2011 2h71 2011 2v31 2011 2v31 2011 2a32 ! 2011 2a32 2011 2k33 2011 2k33 2011 2k34 2011 2k34 ! 2011 2k40 2011 2k40 2011 2k42 2011 2k42 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! k2 98 E/R CH3O 1d57 0.50 CH2O 0.50 dk5D 0.50 dk5A 0.50 o011 -2.00 XSOO CH3O 1d58 0.50 CH2O 0.50 do53 0.50 dk5C 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1d59 0.60 CH2O 0.60 do59 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.6E-15 -7.1E+02 1.6E-15 -7.1E+02 1.3E-16 -7.1E+02 -2.00 XTOO 1.40 CH3O 1.40 1d5B 0.60 CH2O 0.60 dd57 -2.00 XTOO 1.40 CH3O 1.40 1d61 0.60 CH2O 0.60 do65 -2.00 XTOO 1.3E-16 -7.1E+02 8.7E-16 2.9E+02 8.7E-16 2.9E+02 1.1E-16 -7.1E+02 1.1E-16 -7.1E+02 1.40 CH3O 1.40 1d62 0.60 CH2O 0.60 do66 -2.00 XTOO 1.40 CH3O 1.40 1d81 0.60 CH2O 0.60 dk82 -2.00 XTOO CH3O 1k54 0.50 CH2O 0.50 ho5A 0.50 hk51 0.50 o011 -2.00 XSOO 7.6E-16 2.9E+02 7.6E-16 2.9E+02 1.0E-16 -1.2E+03 1.0E-16 -1.2E+03 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.40 CH3O 1.40 1h53 0.60 CH2O 0.60 ho5B -2.00 XTOO CH3O 1h51 0.50 CH2O 0.50 hn58 0.50 hn57 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1h52 0.60 CH2O 0.60 hn59 8.7E-16 2.9E+02 8.7E-16 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 8.7E-16 2.9E+02 -2.00 XTOO 1.40 CH3O 1.40 1h71 0.60 CH2O 0.60 hk71 -2.00 XTOO CH3O 1v34 0.50 CH2O 0.50 vk31 0.50 dv31 0.50 o011 -2.00 XPOO CH3O 1a32 0.50 CH2O 0.50 ak31 8.7E-16 2.9E+02 6.8E-16 2.9E+02 6.8E-16 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 0.50 ad34 0.50 o011 -2.00 XPOO CH3O 1k33 0.50 CH2O 0.50 ko37 0.50 dk33 0.50 o011 -2.00 XPOO CH3O 1k31 0.50 CH2O 0.50 ko31 0.50 dk35 0.50 o011 -2.00 XPOO 1.7E-13 2.9E+02 1.9E-12 2.9E+02 1.9E-12 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 CH3O 1k40 0.50 CH2O 0.50 ko46 0.50 dk48 0.50 o011 -2.00 XPOO CH3O 1k44 0.50 CH2O 0.50 ko46 0.50 kk42 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 Source a a b b a E/R calculated from estimated self-reaction activation temperatures b 2k33 self reaction rate from Kirchner and Stockwell [1996] from Lightfoot et al. [1992] 254 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2k43 2011 2k43 2011 2k44 2011 2k44 ! 2011 2k45 2011 2k45 2011 2k46 2011 2k46 2011 2k47 2011 2k47 ! 2011 2k48 2011 2k48 2011 2k49 2011 2k49 2011 2k4B ! 2011 2k4B 2011 2k4C 2011 2k4C 2011 2k51 2011 2k51 2011 2k52 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 2011 2k52 2011 2k53 2011 2k53 2011 2l11 2011 2l11 ! 2011 2l21 2011 2l21 2011 2l22 2011 2l22 2011 2l31 2011 2l31 ! 2011 2l41 2011 2l41 2011 2l42 2011 2l42 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! k2 98 E/R CH3O 1k41 0.50 CH2O 0.50 kk42 0.50 dk40 0.50 o011 -2.00 XPOO CH3O 1k45 0.50 CH2O 0.50 ko42 0.50 kk43 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 CH3O 1k42 0.50 CH2O 0.50 ko41 0.50 dk49 0.50 o011 -2.00 XPOO CH3O 1k4D 0.50 CH2O 0.50 ko47 0.50 dk4E 0.50 o011 -2.00 XPOO CH3O 1k47 0.50 CH2O 0.50 ko45 0.50 dk4C 0.50 o011 -2.00 XPOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 CH3O 1k46 0.50 CH2O 0.50 ko43 0.50 dk4A 0.50 o011 -2.00 XPOO CH3O 1k48 0.50 CH2O 0.50 ko43 0.50 dk4B 0.50 o011 -2.00 XPOO CH3O 1k4B 0.50 CH2O 0.50 ko48 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 0.50 dk4D 0.50 o011 -2.00 XPOO CH3O 1k4C 0.50 CH2O 0.50 ko47 0.50 dk47 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1k51 0.60 CH2O 0.60 ko54 -2.00 XTOO CH3O kk52 0.50 CH2O 0.50 ko57 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 8.7E-16 2.9E+02 8.7E-16 2.9E+02 1.6E-15 -7.1E+02 0.50 kk52 0.50 o011 -2.00 XSOO CH3O kk53 0.50 CH2O 0.50 ko58 0.50 kk53 0.50 o011 -2.00 XSOO CH3O 1l11 0.50 CH2O 0.50 lo11 0.50 ld11 0.50 o011 -2.00 XPOO 1.6E-15 -7.1E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 3.7E-13 -1.2E+03 3.7E-13 -1.2E+03 CH3O 1l21 0.50 CH2O 0.50 lo21 0.50 ld21 0.50 o011 -2.00 XPOO CH3O 1l22 0.50 CH2O 0.50 lo22 0.50 lk21 0.50 o011 -2.00 XSOO CH3O 1l31 0.50 CH2O 0.50 lo31 0.50 lk31 0.50 o011 -2.00 XSOO 2.8E-14 -1.6E+02 2.8E-14 -1.6E+02 2.8E-14 -1.6E+02 2.8E-14 -1.6E+02 2.1E-15 8.9E+02 2.1E-15 8.9E+02 CH3O 1l41 0.50 CH2O 0.50 lo41 0.50 lk41 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1l42 0.60 CH2O 0.60 lo42 -2.00 XTOO 1.8E-15 5.4E+02 1.8E-15 5.4E+02 1.5E-16 1.9E+03 1.5E-16 1.9E+03 a Reaction added byWilliams [1994a] Source a a a a 255 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2l43 2011 2l43 2011 2m01 2011 2m01 ! 2011 2m11 2011 2m11 2011 2m12 2011 2m12 2011 2m21 2011 2m21 ! 2011 2m22 2011 2m22 2011 2m23 2011 2m23 2011 2m33 ! 2011 2m33 2011 2n11 2011 2n11 2011 2n21 2011 2n21 2011 2n22 ! 2011 2n22 2011 2n23 2011 2n23 2011 2n31 2011 2n31 ! 2011 2n32 2011 2n32 2011 2n33 2011 2n33 2011 2n34 2011 2n34 ! 2011 2n35 2011 2n35 2011 2n41 2011 2n41 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! k2 98 E/R CH3O 1l43 0.50 CH2O 0.50 lo43 0.50 ld41 0.50 o011 -2.00 XPOO CH3O NH2O 0.50 CH2O 0.50 mo01 0.50 HNO 0.50 o011 -2.00 XPOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 3.9E-13 -8.6E+02 3.9E-13 -8.6E+02 CH3O 1m13 0.50 CH2O 0.50 mo11 0.50 md11 0.50 o011 -2.00 XPOO CH3O 1m11 0.50 CH2O 0.50 mo12 0.50 wo11 0.50 o011 -2.00 XSOO CH3O 1m23 0.50 CH2O 0.50 mo21 0.50 mk21 0.50 o011 -2.00 XSOO 3.7E-13 -1.2E+03 3.7E-13 -1.2E+03 1.3E-14 0.0E+00 1.3E-14 0.0E+00 2.8E-14 -1.6E+02 2.8E-14 -1.6E+02 CH3O 1m24 0.50 CH2O 0.50 mo22 0.50 md21 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1m25 0.60 CH2O 0.60 mo23 -2.00 XTOO CH3O 1m33 0.50 CH2O 0.50 mo31 2.8E-14 -1.6E+02 2.8E-14 -1.6E+02 2.4E-15 0.0E+00 2.4E-15 0.0E+00 2.5E-14 -5.1E+02 0.50 md31 0.50 o011 -2.00 XPOO CH3O 1n11 0.50 CH2O 0.50 no11 0.50 nd11 0.50 o011 -2.00 XPOO CH3O 1n21 0.50 CH2O 0.50 nd22 0.50 nd23 0.50 o011 -2.00 XSOO CH3O 1n22 0.50 CH2O 0.50 no21 2.5E-14 -5.1E+02 1.5E-12 2.9E+02 1.5E-12 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 0.50 nd21 0.50 o011 -2.00 XPOO 1n23 CH3O 0.50 no23 0.50 CH2O 0.50 nk23 0.50 o011 -2.00 XSOO CH3O 1n31 0.50 CH2O 0.50 nv39 0.50 nv35 0.50 o011 -2.00 XSOO 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 CH3O 1n32 0.50 CH2O 0.50 no33 0.50 nk38 0.50 o011 -2.00 XSOO CH3O 1n33 0.50 CH2O 0.50 no34 0.50 nd35 0.50 o011 -2.00 XPOO CH3O 1n34 0.50 CH2O 0.50 no32 0.50 nd34 0.50 o011 -2.00 XSOO 1.4E-14 2.9E+02 1.4E-14 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 CH3O 1n35 0.50 CH2O 0.50 no35 0.50 nd38 0.50 o011 -2.00 XPOO CH3O 1n41 0.50 CH2O 0.50 nv4E 0.50 nv4D 0.50 o011 -2.00 XSOO 2.5E-14 -7.1E+02 2.5E-14 -7.1E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 a Reaction added by Williams [1994a] Source Madronich and Calvert [1989] Madronich and Calvert [1989] Madronich and Calvert [1989] Madronich and Calvert [1989] a a 256 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2n42 2011 2n42 ! 2011 2n43 2011 2n43 2011 2n44 2011 2n44 2011 2n45 2011 2n45 ! 2011 2n46 2011 2n46 2011 2n47 2011 2n47 2011 2n48 ! 2011 2n48 2011 2n49 2011 2n49 2011 2n4a 2011 2n4a 2011 2n4b ! 2011 2n4b 2011 2n51 2011 2n51 2011 2n52 2011 2n52 ! 2011 2n53 2011 2n53 2011 2n54 2011 2n54 2011 2n55 2011 2n55 ! 2011 2n56 2011 2n56 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! k2 98 E/R CH3O 1n42 0.50 CH2O 0.50 nk4G 0.50 nk4F 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 CH3O 1n43 0.50 CH2O 0.50 nv4H 0.50 nd4A 0.50 o011 -2.00 XPOO CH3O 1n44 0.50 CH2O 0.50 nk4I 0.50 nd4B 0.50 o011 -2.00 XPOO CH3O 1n47 0.50 CH2O 0.50 no43 0.50 nk45 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.2E-14 2.9E+02 1.2E-14 2.9E+02 1.40 CH3O 1.40 1n46 0.60 CH2O 0.60 no45 -2.00 XTOO 1.40 CH3O 1.40 1n45 0.60 CH2O 0.60 nd4C -2.00 XTOO CH3O 1n48 0.50 CH2O 0.50 nk4A 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.2E-14 2.9E+02 0.50 nk47 0.50 o011 -2.00 XSOO CH3O 1n49 0.50 CH2O 0.50 nk4C 0.50 nd4E 0.50 o011 -2.00 XPOO CH3O 1n4a 0.50 CH2O 0.50 nk49 0.50 no46 0.05 o011 -2.00 XSOO CH3O 1n4b 0.50 CH2O 0.50 nd48 1.2E-14 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.8E-15 -7.1E+02 1.8E-15 -7.1E+02 1.5E-13 2.9E+02 0.50 no4C 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1n51 0.60 CH2O 0.60 nu54 -2.00 XTOO CH3O 1n52 0.50 CH2O 0.50 nu55 0.50 nu53 0.50 o011 -2.00 XSOO 1.5E-13 2.9E+02 1.3E-16 -7.1E+02 1.3E-16 -7.1E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 CH3O 1n53 0.50 CH2O 0.50 no5B 0.50 nk51 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1n54 0.60 CH2O 0.60 no5C -2.00 XTOO CH3O 1n55 0.50 CH2O 0.50 no57 0.50 nk52 0.50 o011 -2.00 XSOO 1.1E-14 2.9E+02 1.1E-14 2.9E+02 8.7E-16 2.9E+02 8.7E-16 2.9E+02 1.6E-15 -7.1E+02 1.6E-15 -7.1E+02 CH3O 1n56 0.50 CH2O 0.50 no58 0.50 nk53 0.50 o011 -2.00 XSOO 1.6E-15 -7.1E+02 1.6E-15 -7.1E+02 a Reaction added by Williams [1994a] Source a a a a a a a a 257 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 2011 2n57 1 ! 2 2011 2n57 2011 2n58 2011 2n58 2011 2n59 2011 2n59 ! 2011 2n5a 2011 2n5a 2011 2nA1 2011 2nA1 2011 2o11 2011 2o11 ! 2011 2o21 2011 2o21 2011 2o31 2011 2o31 2011 2o32 ! 2011 2o32 2011 2o33 2011 2o33 2011 2o34 2011 2o34 2011 2o35 ! 2011 2o35 2011 2o40 2011 2o40 2011 2a43 2011 2a43 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! k2 98 E/R CH3O 1n57 0.50 CH2O 0.50 no5E 1.6E-15 -7.1E+02 0.50 nk54 0.50 o011 -2.00 XSOO CH3O 1n58 0.50 CH2O 0.50 no5F 0.50 nk55 0.50 o011 -2.00 XSOO CH3O 1n59 0.50 CH2O 0.50 no5G 0.50 nk56 0.50 o011 -2.00 XSOO 1.6E-15 -7.1E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 CH3O 1n5a 0.50 CH2O 0.50 no5H 0.50 nd58 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1nA1 0.60 CH2O 0.60 ntA2 -2.00 XTOO CH3O 1o11 0.50 CH2O 0.50 oo11 0.50 a011 0.50 o011 -2.00 XPOO 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 6.8E-16 -1.2E+03 6.8E-16 -1.2E+03 1.5E-12 2.9E+02 1.5E-12 2.9E+02 CH3O 1o22 0.50 CH2O 0.50 oo21 0.50 do23 0.50 o011 -2.00 XPOO CH3O 1o32 0.50 CH2O 0.50 oo32 0.50 ko31 0.50 o011 -2.00 XSOO CH3O 1o33 0.50 CH2O 0.50 oo31 9.2E-13 2.9E+02 9.2E-13 2.9E+02 1.4E-14 2.9E+02 1.4E-14 2.9E+02 1.4E-14 2.9E+02 0.50 ko37 0.50 o011 -2.00 XSOO CH3O 1o34 0.50 CH2O 0.50 oo31 0.50 do34 0.50 o011 -2.00 XPOO CH3O 1o35 0.50 CH2O 0.50 oo33 0.50 do35 0.50 o011 -2.00 XPOO CH3O 1o31 0.50 CH2O 0.50 oo32 1.4E-14 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 2.5E-14 -7.1E+02 2.5E-14 -7.1E+02 1.7E-13 2.9E+02 0.50 do31 0.50 o011 -2.00 XPOO CH3O 1o40 0.50 CH2O 0.50 oo41 0.50 do46 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1a44 0.60 CH2O 0.60 ao48 -2.00 XTOO 1.7E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.0E-15 2.9E+02 1.0E-15 2.9E+02 Source a a a a a a a a b b b;c b;c b;d b;d a Reaction added by Williams [1994a] b E/R calculated from estimated self-reaction activation temperatures c 2o11 self reaction rate from Kirchner and Stockwell [1996] from Lightfoot et al. [1992] d 2o21 self reaction rate from Kirchner and Stockwell [1996] from Lightfoot et al. [1992] 258 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2o42 2011 2o42 2011 2o43 2011 2o43 ! 2011 2o44 2011 2o44 2011 2o45 2011 2o45 2011 2o46 ! 2011 2o46 2011 2a47 2011 2a47 2011 2o48 2011 2o48 2011 2o49 ! 2011 2o49 2011 2o4A 2011 2o4A 2011 2o4B 2011 2o4B ! 2011 2o4C 2011 2o4C 2011 2o4D 2011 2o4D 2011 2o50 2011 2o50 ! 2011 2o51 2011 2o51 2011 2o52 2011 2o52 2011 2o53 ! 2011 2o53 2011 2o54 2011 2o54 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R Source CH3O 1o43 0.50 CH2O 0.50 oo42 0.50 do41 0.50 o011 -2.00 XPOO CH3O 1o44 0.50 CH2O 0.50 oo47 0.50 ko42 0.50 o011 -2.00 XSOO 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 5.6E-13 2.9E+02 5.6E-13 2.9E+02 a ;b a;b 1.40 CH3O 1.40 1o41 0.60 CH2O 0.60 oo43 -2.00 XTOO CH3O 1o45 0.50 CH2O 0.50 oo43 0.50 do42 0.50 o011 -2.00 XPOO CH3O 1o46 0.50 CH2O 0.50 oo44 1.0E-15 2.9E+02 1.0E-15 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 2.2E-14 -7.1E+02 0.50 do44 0.50 o011 -2.00 XPOO CH3O 1a42 0.50 CH2O 0.50 ao46 0.50 ad49 0.50 o011 -2.00 XPOO CH3O 1o48 0.50 CH2O 0.50 oo48 0.50 do49 0.50 o011 -2.00 XPOO CH3O 1o49 0.50 CH2O 0.50 oo49 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 0.50 do40 0.50 o011 -2.00 XPOO CH3O 1o4A 0.50 CH2O 0.50 oo45 0.50 do43 0.50 o011 -2.00 XPOO CH3O 1o4B 0.50 CH2O 0.50 oo46 0.50 do45 0.50 o011 -2.00 XPOO 1.5E-13 2.9E+02 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 2.2E-14 -7.1E+02 CH3O 1o4C 0.50 CH2O 0.50 oo44 0.50 ko45 0.50 o011 -2.00 XPOO CH3O 1o4D 0.50 CH2O 0.50 oo47 0.50 do48 0.50 o011 -2.00 XPOO CH3O 1o50 0.50 CH2O 0.50 oo53 0.50 ko50 0.50 o011 -2.00 XSOO 1.8E-15 -7.1E+02 1.8E-15 -7.1E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 CH3O 1o52 0.50 CH2O 0.50 oo51 0.50 ko56 0.50 o011 -2.00 XSOO CH3O 1o54 0.50 CH2O 0.50 oo54 0.50 ko53 0.50 o011 -2.00 XSOO CH3O 1o53 0.50 CH2O 0.50 oo55 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 0.50 ko51 0.50 o011 -2.00 XSOO CH3O 1o51 0.50 CH2O 0.50 oo57 0.50 ko55 0.50 o011 -2.00 XSOO 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 a upper limit for 2o43 self reaction rate from Kirchner and Stockwell [1996], from LeBras [1997] b E/R calculated from estimated self–reaction activation temperatures 259 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2o55 2011 2o55 ! 2011 2o56 2011 2o56 2011 2o57 2011 2o57 2011 2o58 2011 2o58 ! 2011 2o59 2011 2o59 2011 2o5A 2011 2o5A 2011 2o5B ! 2011 2o5B 2011 2a51 2011 2a51 2011 2a50 2011 2a50 2011 2a53 ! 2011 2a53 2011 2o61 2011 2o61 2011 2o62 2011 2o62 ! 2011 2o63 2011 2o63 2011 2o64 2011 2o64 2011 2o65 2011 2o65 ! 2011 2o71 2011 2o71 2011 2o81 2011 2o81 2011 2p21 ! 2011 2p21 2011 2p30 2011 2p30 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R CH3O 1o50 0.50 CH2O 0.50 oo54 0.50 do57 0.50 o011 -2.00 XPOO 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 CH3O 1o56 0.50 CH2O 0.50 oo51 0.50 ko52 0.50 o011 -2.00 XSOO CH3O 1o57 0.50 CH2O 0.50 oo51 0.50 do52 0.50 o011 -2.00 XPOO CH3O 1o58 0.50 CH2O 0.50 oo58 0.50 do53 0.50 o011 -2.00 XPOO 1.6E-15 -7.1E+02 1.6E-15 -7.1E+02 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 CH3O 1o59 0.50 CH2O 0.50 oo52 0.50 do54 0.50 o011 -2.00 XPOO 1o5C CH3O 0.50 oo59 0.50 CH2O 0.50 ko54 0.50 o011 -2.00 XSOO 1o5B CH3O 0.50 oo59 0.50 CH2O 1.9E-14 -7.1E+02 1.9E-14 -7.1E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.3E-13 2.9E+02 0.50 do50 0.50 o011 -2.00 XPOO 1a50 CH3O 0.50 ak57 0.50 CH2O 0.50 ak51 0.50 o011 -2.00 XSOO 1a51 CH3O 0.50 ak57 0.50 CH2O 0.50 ak51 0.50 o011 -2.00 XSOO 1a52 CH3O 0.50 ak58 0.50 CH2O 1.3E-13 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.1E-14 2.9E+02 1.3E-13 2.9E+02 0.50 ad53 0.50 o011 -2.00 XPOO CH3O 1o61 0.50 CH2O 0.50 oo61 0.50 dd61 0.50 o011 -2.00 XPOO CH3O 1o63 0.50 CH2O 0.50 oo62 0.50 do62 0.50 o011 -2.00 XPOO 1.3E-13 2.9E+02 1.1E-13 2.9E+02 1.1E-13 2.9E+02 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 CH3O 1o64 0.50 CH2O 0.50 oo63 0.50 do64 0.50 o011 -2.00 XPOO CH3O 1o62 0.50 CH2O 0.50 oo64 0.50 do63 0.50 o011 -2.00 XPOO CH3O 1o65 0.50 CH2O 0.50 oo65 0.50 do65 0.50 o011 -2.00 XPOO 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 1.7E-14 -7.1E+02 CH3O 1o71 0.50 CH2O 0.50 oo71 0.50 ko71 0.50 o011 -2.00 XPOO CH3O 1o81 0.50 CH2O 0.50 oo81 0.50 dk81 0.50 o011 -2.00 XSOO CH3O 1p21 0.50 CH2O 0.50 po23 1.0E-13 2.9E+02 1.0E-13 2.9E+02 8.3E-15 -1.2E+03 8.3E-15 -1.2E+03 1.9E-13 2.9E+02 0.50 pd21 0.50 o011 -2.00 XPOO 1p30 CH3O 0.50 po35 0.50 CH2O 0.50 pd33 0.50 o011 -2.00 XPOO 1.9E-13 2.9E+02 2.5E-14 -7.1E+02 2.5E-14 -7.1E+02 a E/R calculated from estimated self-reaction activation temperatures Source a a 260 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 2p31 2011 2p31 ! 2011 2t71 2011 2t71 2011 2t81 2011 2t81 2011 2d81 2011 2d81 ! 2011 2t91 2011 2t91 2011 2t92 2011 2t92 2011 2tA1 ! 2011 2tA1 2011 2dA2 2011 2dA2 2011 2r61 2011 2r61 2011 2r62 ! 2011 2r62 2011 2r63 2011 2r63 2011 2r71 2011 2r71 ! 2011 2r72 2011 2r72 2011 2r73 2011 2r73 2011 2r74 2011 2r74 ! 2011 2r81 2011 2r81 2011 2r82 2011 2r82 2011 2s21 ! 2011 2s21 2011 2r75 2011 2r75 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R 1p31 CH3O 0.50 po31 0.50 CH2O 0.50 pk33 0.50 o011 -2.00 XSOO 1.4E-14 2.9E+02 1.4E-14 2.9E+02 1.40 CH3O 1.40 2e72 0.60 CH2O 0.60 et71 -0.60 XTOO CH3O 1t81 0.50 CH2O 0.50 tk82 0.50 tk81 0.50 o011 -2.00 XSOO CH3O 1d82 0.50 CH2O 0.50 dt82 0.50 dt81 0.50 o011 -2.00 XSOO 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 1.2E-15 -1.2E+03 1.2E-15 -1.2E+03 1.2E-15 -1.2E+03 1.2E-15 -1.2E+03 CH3O 1t91 0.50 CH2O 0.50 tk91 0.50 dt91 0.50 o011 -2.00 XPOO CH3O 1t92 0.50 CH2O 0.50 tk92 0.50 dt92 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1tA1 0.60 CH2O 0.60 toA1 1.5E-14 -1.2E+03 1.5E-14 -1.2E+03 1.5E-14 -1.2E+03 1.5E-14 -1.2E+03 6.8E-16 -1.2E+03 -2.00 XTOO CH3O 1dA2 0.50 CH2O 0.50 dtA3 0.50 ddA2 0.50 o011 -2.00 XPOO CH3O 1r63 0.50 CH2O 0.50 ro64 0.50 rk63 0.50 o011 -2.00 XSOO CH3O 1r64 0.50 CH2O 0.50 ro65 6.8E-16 -1.2E+03 1.0E-13 -1.2E+03 1.0E-13 -1.2E+03 9.3E-15 2.9E+02 9.3E-15 2.9E+02 9.3E-15 2.9E+02 0.50 rk62 0.50 o011 -2.00 XSOO 1.40 CH3O 1.40 1r61 0.60 CH2O 0.60 ro61 -2.00 XTOO 1.40 CH3O 1.40 1r74 0.60 CH2O 0.60 rv75 -2.00 XTOO 9.3E-15 2.9E+02 1.1E-16 1.2E+03 1.1E-16 1.2E+03 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 CH3O 1r71 0.50 CH2O 0.50 ro71 0.50 dr71 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1r75 0.60 CH2O 0.60 ro76 -2.00 XTOO 1.40 CH3O 1.40 1r76 0.60 CH2O 0.60 ro77 -2.00 XTOO 1.7E-12 -1.1E+03 1.7E-12 -1.1E+03 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 1.40 CH3O 1.40 1r82 0.60 CH2O 0.60 ro83 -2.00 XTOO 1.40 CH3O 1.40 1r83 0.60 CH2O 0.60 ro84 -2.00 XTOO CH3O 1s21 0.50 CH2O 0.50 so21 1.0E-16 -1.2E+03 1.0E-16 -1.2E+03 1.0E-16 -1.2E+03 1.0E-16 -1.2E+03 2.8E-14 -1.6E+02 0.50 sd21 0.50 o011 -2.00 XPOO 1.40 CH3O 1.40 1r77 0.60 CH2O 0.60 rv78 -2.00 XTOO 2.8E-14 -1.6E+02 1.0E-16 -7.1E+02 1.0E-16 -7.1E+02 a E/R calculated from estimated self-reaction activation temperatures b 2r72 self reaction rate from Kirchner and Stockwell [1996] from LeBras [1997] Source a a a a a a a a a a a a b a a a a 261 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3021 2011 3021 ! 2011 3031 2011 3031 2011 3a31 2011 3a31 2011 3a32 2011 3a32 ! 2011 3a33 2011 3a33 2011 3n34 2011 3n34 2011 3041 ! 2011 3041 2011 3042 2011 3042 2011 3h40 2011 3h40 2011 3g40 ! 2011 3g40 2011 3051 2011 3051 2011 3052 2011 3052 ! 2011 3053 2011 3053 2011 3061 2011 3061 2011 3a21 2011 3a21 ! 2011 3u31 2011 3u31 2011 3u32 2011 3u32 2011 3u41 ! 2011 3u41 2011 3u42 2011 3u42 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R 1.40 CH3O 1.40 8021 0.60 CH2O 0.60 a021 -2.00 XAOO 5.5E-12 -6.4E+02 5.5E-12 -6.4E+02 1.40 CH3O 1.40 8031 0.60 CH2O 0.60 a031 -2.00 XAOO 1.40 CH3O 1.40 8a31 0.60 CH2O 0.60 aa31 -2.00 XAOO 1.40 CH3O 1.40 8a32 0.60 CH2O 0.60 aa32 -2.00 XAOO 2.5E-12 2.9E+02 2.5E-12 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.40 CH3O 1.40 8a33 0.60 CH2O 0.60 aa33 -2.00 XAOO 1.40 CH3O 1.40 8n34 0.60 CH2O 0.60 an35 -2.00 XAOO 1.40 CH3O 1.40 8041 0.60 CH2O 0.60 a041 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8042 0.60 CH2O 0.60 a042 -2.00 XAOO 1.40 ko37 0.60 ah42 1.40 CH3O 0.60 CH2O -2.00 XAOO 1.40 HO 1.40 CO2 1.40 gk33 0.60 ag40 1.40 CH3O 0.60 CH2O 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 HO 1.40 CO2 1.40 CH3O 1.40 8051 0.60 CH2O 0.60 a051 -2.00 XAOO 1.40 CH3O 1.40 8052 0.60 CH2O 0.60 a052 -2.00 XAOO 1.5E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8053 0.60 CH2O 0.60 a053 -2.00 XAOO 1.40 CH3O 1.40 8061 0.60 CH2O 0.60 a061 -2.00 XAOO 1.40 CH3O 1.40 8a21 0.60 CH2O 0.60 aa21 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.1E-13 2.9E+02 1.1E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.40 CH3O 1.40 8u31 0.60 CH2O 0.60 au31 -2.00 XAOO 1.40 CH3O 1.40 8u32 0.60 CH2O 0.60 au32 -2.00 XAOO 1.40 CH3O 1.40 8u41 0.60 CH2O 0.60 au41 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.2E-14 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8u42 0.60 CH2O 0.60 au42 -2.00 XAOO 1.2E-14 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 Source DeMore et al. [1997] a DeMore et al. [1997] b;c a 3021 self reaction rate from Kirchner and Stockwell [1996], from Lightfoot et al. [1992] b 3031 self reaction rate from Kirchner and Stockwell [1996], from LeBras [1997] c E/R calculated from estimated self-reaction activation temperatures 262 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3u43 2011 3u43 ! 2011 3u44 2011 3u44 2011 3u51 2011 3u51 2011 3u52 2011 3u52 ! 2011 3u53 2011 3u53 2011 3d21 2011 3d21 2011 3d31 ! 2011 3d31 2011 3d32 2011 3d32 2011 3d33 2011 3d33 2011 3d41 ! 2011 3d41 2011 3d42 2011 3d42 2011 3d43 2011 3d43 ! 2011 3d44 2011 3d44 2011 3d45 2011 3d45 2011 3d46 2011 3d46 ! 2011 3d47 2011 3d47 2011 3d48 2011 3d48 2011 3d51 ! 2011 3d51 2011 3d52 2011 3d52 2011 3d53 2011 3d53 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! k2 98 E/R 1.40 CH3O 1.40 8u43 0.60 CH2O 0.60 au43 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8u44 0.60 CH2O 0.60 au44 -2.00 XAOO 1.40 CH3O 1.40 8u51 0.60 CH2O 0.60 au51 -2.00 XAOO 1.40 CH3O 1.40 8u52 0.60 CH2O 0.60 au52 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8u53 0.60 CH2O 0.60 au53 -2.00 XAOO 1.40 CH3O 1.40 8d21 0.60 CH2O 0.60 ad21 -2.00 XAOO 1.40 CH3O 1.40 8d31 0.60 CH2O 0.60 ad31 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.7E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8d32 0.60 CH2O 0.60 ad32 -2.00 XAOO 1.40 CH3O 1.40 8d33 0.60 CH2O 0.60 ad33 -2.00 XAOO 1.40 CH3O 1.40 8d41 0.60 CH2O 0.60 ad41 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8d42 0.60 CH2O 0.60 ad42 -2.00 XAOO 1.40 CH3O 1.40 8d43 0.60 CH2O 0.60 ad43 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8d44 0.60 CH2O 0.60 ad44 -2.00 XAOO 1.40 CH3O 1.40 8d45 0.60 CH2O 0.60 ad45 -2.00 XAOO 1.40 CH3O 1.40 8d46 0.60 CH2O 0.60 ad46 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8d47 0.60 CH2O 0.60 ad47 -2.00 XAOO 1.40 CH3O 1.40 8d48 0.60 CH2O 0.60 ad48 -2.00 XAOO 1.40 CH3O 1.40 8d51 0.60 CH2O 0.60 ad51 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.3E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8d52 0.60 CH2O 0.60 ad52 -2.00 XAOO 1.40 CH3O 1.40 8d53 0.60 CH2O 0.60 ad53 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 Source 263 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3d54 2011 3d54 2011 3d55 2011 3d55 ! 2011 3d56 2011 3d56 2011 3h21 2011 3h21 2011 3v22 ! 2011 3v22 2011 3k31 2011 3k31 2011 3v32 2011 3v32 2011 3k33 ! 2011 3k33 2011 3k40 2011 3k40 2011 3v41 2011 3v41 ! 2011 3v42 2011 3v42 2011 3v43 2011 3v43 2011 3v44 2011 3v44 ! 2011 3k45 2011 3k45 2011 3k46 2011 3k46 2011 3k47 ! 2011 3k47 2011 3k48 2011 3k48 2011 3k49 2011 3k49 2011 3k4A ! 2011 3k4A ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 k2 98 E/R 1.40 CH3O 1.40 8d54 0.60 CH2O 0.60 ad54 -2.00 XAOO 1.40 CH3O 1.40 8d55 0.60 CH2O 0.60 ad55 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8d56 0.60 CH2O 0.60 ad56 -2.00 XAOO 1.40 CH3O 1.40 8h21 0.60 CH2O 0.60 ah21 -2.00 XAOO 1.40 CH3O 1.40 8v21 0.60 CH2O 0.60 av22 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8k31 0.60 CH2O 0.60 ak31 -2.00 XAOO 1.40 CH3O 1.40 8v32 0.60 CH2O 0.60 av32 -2.00 XAOO 1.40 CH3O 1.40 8k33 0.60 CH2O 0.60 ak33 1.9E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8k40 0.60 CH2O 0.60 ak40 -2.00 XAOO 1.40 CH3O 1.40 8v41 0.60 CH2O 0.60 av41 -2.00 XAOO 1.7E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8v42 0.60 CH2O 0.60 av42 -2.00 XAOO 1.40 CH3O 1.40 8v43 0.60 CH2O 0.60 av43 -2.00 XAOO 1.40 CH3O 1.40 8v44 0.60 CH2O 0.60 av44 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8k45 0.60 CH2O 0.60 ak45 -2.00 XAOO 1.40 CH3O 1.40 8k46 0.60 CH2O 0.60 ak46 -2.00 XAOO 1.40 CH3O 1.40 8k47 0.60 CH2O 0.60 ak47 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8k48 0.60 CH2O 0.60 ak48 -2.00 XAOO 1.40 CH3O 1.40 8k49 0.60 CH2O 0.60 ak49 -2.00 XAOO 1.40 CH3O 1.40 8k4A 0.60 CH2O 0.60 ak4A 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.5E-13 2.9E+02 Source 264 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3k50 2011 3k50 2011 3k51 2011 3k51 ! 2011 3k52 2011 3k52 2011 3k53 2011 3k53 2011 3v54 ! 2011 3v54 2011 3k55 2011 3k55 2011 3v56 2011 3v56 2011 3k57 ! 2011 3k57 2011 3k58 2011 3k58 2011 3k59 2011 3k59 ! 2011 3k5A 2011 3k5A 2011 3k5B 2011 3k5B 2011 3k5C 2011 3k5C ! 2011 3l11 2011 3l11 2011 3n21 2011 3n21 2011 3n31 ! 2011 3n31 2011 3n32 2011 3n32 2011 3n33 2011 3n33 2011 3n41 ! 2011 3n41 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 k2 98 E/R 1.40 CH3O 1.40 8k50 0.60 CH2O 0.60 ak50 -2.00 XAOO 1.40 CH3O 1.40 8k51 0.60 CH2O 0.60 ak51 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8k52 0.60 CH2O 0.60 ak52 -2.00 XAOO 1.40 CH3O 1.40 8k53 0.60 CH2O 0.60 ak53 -2.00 XAOO 1.40 CH3O 1.40 8v54 0.60 CH2O 0.60 av54 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8k55 0.60 CH2O 0.60 ak55 -2.00 XAOO 1.40 CH3O 1.40 8v56 0.60 CH2O 0.60 av56 -2.00 XAOO 1.40 CH3O 1.40 8k57 0.60 CH2O 0.60 ak57 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8k58 0.60 CH2O 0.60 ak58 -2.00 XAOO 1.40 CH3O 1.40 8k59 0.60 CH2O 0.60 ak59 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8k5A 0.60 CH2O 0.60 ak5A -2.00 XAOO 1.40 CH3O 1.40 8k5B 0.60 CH2O 0.60 ak5B -2.00 XAOO 1.40 CH3O 1.40 8k5C 0.60 CH2O 0.60 ak5C -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8l11 0.60 CH2O 0.60 la11 -2.00 XAOO 1.40 CH3O 1.40 8n21 0.60 CH2O 0.60 an21 -2.00 XAOO 1.40 CH3O 1.40 8n31 0.60 CH2O 0.60 an31 2.5E-12 2.9E+02 2.5E-12 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.7E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8n32 0.60 CH2O 0.60 an32 -2.00 XAOO 1.40 CH3O 1.40 8n33 0.60 CH2O 0.60 an33 -2.00 XAOO 1.40 CH3O 1.40 8n41 0.60 CH2O 0.60 an41 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.5E-13 2.9E+02 Source 265 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3n42 2011 3n42 ! 2011 3n43 2011 3n43 2011 3n44 2011 3n44 2011 3n45 2011 3n45 ! 2011 3n46 2011 3n46 2011 3n47 2011 3n47 2011 3n48 ! 2011 3n48 2011 3n49 2011 3n49 2011 3n51 2011 3n51 2011 3n52 ! 2011 3n52 2011 3n53 2011 3n53 2011 3n54 2011 3n54 ! 2011 3n55 2011 3n55 2011 3o22 2011 3o22 2011 3o23 2011 3o23 ! 2011 3v21 2011 3v21 2011 3o31 2011 3o31 2011 3o32 ! 2011 3o32 2011 3o33 2011 3o33 2011 3o34 2011 3o34 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! k2 98 E/R 1.40 CH3O 1.40 8n42 0.60 CH2O 0.60 an42 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8n43 0.60 CH2O 0.60 an43 -2.00 XAOO 1.40 CH3O 1.40 8n44 0.60 CH2O 0.60 an44 -2.00 XAOO 1.40 CH3O 1.40 8n45 0.60 CH2O 0.60 an45 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8n46 0.60 CH2O 0.60 an46 -2.00 XAOO 1.40 CH3O 1.40 8n47 0.60 CH2O 0.60 an47 -2.00 XAOO 1.40 CH3O 1.40 8n48 0.60 CH2O 0.60 an48 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 ko37 0.60 an49 1.40 CH3O 0.60 CH2O -2.00 XAOO 1.40 NO2 1.40 CO2 1.40 CH3O 1.40 8n51 0.60 CH2O 0.60 an51 -2.00 XAOO 1.40 CH3O 1.40 8n52 0.60 CH2O 0.60 an52 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8n53 0.60 CH2O 0.60 an53 -2.00 XAOO 1.40 CH3O 1.40 8n54 0.60 CH2O 0.60 an54 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8n55 0.60 CH2O 0.60 an55 -2.00 XAOO 1.40 CH3O 1.40 8o22 0.60 CH2O 0.60 ao22 -2.00 XAOO 1.40 CH3O 1.40 8o23 0.60 CH2O 0.60 ao23 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.40 CH3O 1.40 8v22 0.60 CH2O 0.60 av21 -2.00 XAOO 1.40 CH3O 1.40 8o31 0.60 CH2O 0.60 ao31 -2.00 XAOO 1.40 CH3O 1.40 8o32 0.60 CH2O 0.60 ao32 1.9E-13 2.9E+02 1.9E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8o33 0.60 CH2O 0.60 ao33 -2.00 XAOO 1.40 CH3O 1.40 8o34 0.60 CH2O 0.60 ao34 -2.00 XAOO 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.7E-13 2.9E+02 Source 266 Table C.10 (continued) Peroxy radical reactions with methyl peroxy radical Reaction 1 2011 3o35 2011 3o35 ! 2011 3o41 2011 3o41 2011 3o42 2011 3o42 2011 3o43 2011 3o43 ! 2011 3o44 2011 3o44 2011 3o45 2011 3o45 2011 3o46 ! 2011 3o46 2011 3o47 2011 3o47 2011 3o51 2011 3o51 2011 3o52 ! 2011 3o52 2011 3o53 2011 3o53 2011 3o54 2011 3o54 ! 2011 3o55 2011 3o55 2011 3o56 2011 3o56 2011 3o57 2011 3o57 ! 2011 3o61 2011 3o61 2011 3t91 2011 3t91 2011 3tA1 ! 2011 3tA1 2011 3r71 2011 3r71 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 ! 1 2 ! 1 ! 2 ! 1 ! 2 1 ! 2 ! k2 98 E/R 1.40 CH3O 1.40 8o35 0.60 CH2O 0.60 ao35 -2.00 XAOO 1.7E-13 2.9E+02 1.7E-13 2.9E+02 1.40 CH3O 1.40 8o41 0.60 CH2O 0.60 ao41 -2.00 XAOO 1.40 CH3O 1.40 8o42 0.60 CH2O 0.60 ao42 -2.00 XAOO 1.40 CH3O 1.40 8o43 0.60 CH2O 0.60 ao43 -2.00 XAOO 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.40 CH3O 1.40 8o44 0.60 CH2O 0.60 ao44 -2.00 XAOO 1.40 CH3O 1.40 8o45 0.60 CH2O 0.60 ao45 -2.00 XAOO 1.40 CH3O 1.40 8o46 0.60 CH2O 0.60 ao46 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8o47 0.60 CH2O 0.60 ao47 -2.00 XAOO 1.40 CH3O 1.40 8o51 0.60 CH2O 0.60 ao51 -2.00 XAOO 1.40 CH3O 1.40 8o52 0.60 CH2O 0.60 ao52 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.5E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 -2.00 XAOO 1.40 CH3O 1.40 8o53 0.60 CH2O 0.60 ao53 -2.00 XAOO 1.40 CH3O 1.40 8o54 0.60 CH2O 0.60 ao54 -2.00 XAOO 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8o55 0.60 CH2O 0.60 ao55 -2.00 XAOO 1.40 CH3O 1.40 8o56 0.60 CH2O 0.60 ao56 -2.00 XAOO 1.40 do49 0.60 ao50 1.40 CH3O 0.60 CH2O -2.00 XAOO 1.40 HO2 1.40 CO2 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.3E-13 2.9E+02 1.40 CH3O 1.40 8o61 0.60 CH2O 0.60 ao61 -2.00 XAOO 1.40 CH3O 1.40 8t91 0.60 CH2O 0.60 at91 -2.00 XAOO 1.40 CH3O 1.40 8tA1 0.60 CH2O 0.60 atA1 1.1E-13 2.9E+02 1.1E-13 2.9E+02 1.0E-13 -1.2E+03 a 1.0E-13 -1.2E+03 a 1.0E-13 -1.2E+03a -2.00 XAOO 1.40 CH3O 1.40 8r71 0.60 CH2O 0.60 ar71 -2.00 XAOO 1.0E-13 -1.2E+03a 1.0E-13 2.9E+02 1.0E-13 2.9E+02 a E/R calculated from estimated self-reaction activation temperatures Source 267 Table C.11 Peroxy radical cross reactions. 2021 XPOO 2021 XSOO 2021 XTOO 2021 XAOO 2031 XPOO 2031 XSOO 2031 XTOO 2031 XAOO 2032 XPOO 2032 XSOO 2032 XTOO 2032 XAOO 2041 XPOO 2041 XSOO 2041 XTOO 2041 XAOO 2042 XPOO 2042 XSOO 2042 XTOO 2042 XAOO 2043 XPOO 2043 XSOO 2043 XTOO 2043 XAOO 2044 XPOO 2044 XSOO 2044 XTOO 2044 XAOO 2051 XPOO 2051 XSOO 2051 XTOO 2051 XAOO 2052 XPOO 2052 XSOO 2052 XTOO 2052 XAOO 2053 XPOO 2053 XSOO 2053 XTOO 2053 XAOO 2054 XPOO 2054 XSOO 2054 XTOO 2054 XAOO 2055 XPOO 2055 XSOO 2055 XTOO 2055 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1021 0.20 o021 0.20 d021 0.60 1021 0.20 o021 0.20 d021 0.80 1021 0.20 d021 0.80 1021 0.20 d021 0.60 1032 0.20 o032 0.20 k031 0.60 1032 0.20 o032 0.20 k031 0.80 1032 0.20 k031 0.80 1032 0.20 k031 0.60 1031 0.20 o031 0.20 d031 0.60 1031 0.20 o031 0.20 d031 0.80 1031 0.20 d031 0.80 1031 0.20 d031 0.60 1043 0.20 o041 0.20 k041 0.60 1043 0.20 o041 0.20 k041 0.80 1043 0.20 k041 0.80 1043 0.20 k041 0.60 1042 0.20 o042 0.20 d041 0.60 1042 0.20 o042 0.20 d041 0.80 1042 0.20 d041 0.80 1042 0.20 d041 0.80 1044 0.20 o043 0.80 1044 0.20 o043 1044 1044 0.60 1044 0.20 o044 0.20 d042 0.60 1044 0.20 o044 0.20 d042 0.80 1044 0.20 d042 0.80 1044 0.20 d042 0.60 1051 0.20 o054 0.20 k051 0.60 1051 0.20 o054 0.20 k051 0.80 1051 0.20 k051 0.80 1051 0.20 k051 0.60 1052 0.20 o052 0.20 k053 0.60 1052 0.20 o052 0.20 k053 0.80 1052 0.20 k053 0.80 1052 0.20 k053 0.60 1053 0.20 o053 0.20 d051 0.60 1053 0.20 o053 0.20 d051 0.80 1053 0.20 d051 0.80 1053 0.20 d051 0.60 1054 0.20 o054 0.20 k051 0.60 1054 0.20 o054 0.20 k051 0.80 1054 0.20 k051 0.80 1054 0.20 k051 0.60 1055 0.20 o055 0.20 k052 0.60 1055 0.20 o055 0.20 k052 0.80 1055 0.20 k052 0.80 1055 0.20 k052 k2 98 E/R 2.6E-13 0.0E+00 3.6E-14 0.0E+00 2.3E-15 0.0E+00 8.9E-13 0.0E+00 3.3E-14 0.0E+00 4.7E-15 0.0E+00 3.0E-16 0.0E+00 1.2E-13 0.0E+00 6.2E-13 0.0E+00 8.8E-14 0.0E+00 5.6E-15 0.0E+00 2.2E-12 0.0E+00 3.0E-15 0.0E+00 4.2E-16 0.0E+00 2.7E-17 0.0E+00 1.0E-14 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 5.5E-15 0.0E+00 7.8E-16 0.0E+00 4.9E-17 0.0E+00 1.9E-14 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 Source 268 Table C.11 (continued) Peroxy Radical Cross Reactions 2056 XPOO 2056 XSOO 2056 XTOO 2056 XAOO 2057 XPOO 2057 XSOO 2057 XTOO 2057 XAOO 2061 XPOO 2061 XSOO 2061 XTOO 2061 XAOO 2062 XPOO 2062 XSOO 2062 XTOO 2062 XAOO 2063 XPOO 2063 XSOO 2063 XTOO 2063 XAOO 2071 XPOO 2071 XSOO 2071 XTOO 2071 XAOO 2081 XPOO 2081 XSOO 2081 XTOO 2081 XAOO 2a21 XPOO 2a21 XSOO 2a21 XTOO 2a21 XAOO 2a31 XPOO 2a31 XSOO 2a31 XTOO 2a31 XAOO 2a41 XPOO 2a41 XSOO 2a41 XTOO 2a41 XAOO 2a42 XPOO 2a42 XSOO 2a42 XTOO 2a42 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1056 0.20 o056 0.20 d053 0.60 1056 0.20 o056 0.20 d053 0.80 1056 0.20 d053 0.80 1056 0.20 d053 0.80 1057 0.20 o057 0.80 1057 0.20 o057 1057 1057 0.60 1061 0.20 o061 0.20 k062 0.60 1061 0.20 o061 0.20 k062 0.80 1061 0.20 k062 0.80 1061 0.20 k062 0.80 1062 0.20 o062 0.80 1062 0.20 o062 1062 1062 0.60 1063 0.20 o063 0.20 d061 0.60 1063 0.20 o063 0.20 d061 0.80 1063 0.20 d061 0.80 1063 0.20 d061 0.60 1071 0.20 o071 0.20 k071 0.60 1071 0.20 o071 0.20 k071 0.80 1071 0.20 k071 0.80 1071 0.20 k071 0.60 1081 0.20 o081 0.20 k081 0.60 1081 0.20 o081 0.20 k081 0.80 1081 0.20 k081 0.80 1081 0.20 k081 0.60 1a21 0.20 ao23 0.20 ad21 0.60 1a21 0.20 ao23 0.20 ad21 0.80 1a21 0.20 ad21 0.80 1a21 0.20 ad21 0.60 1a31 0.20 ao34 0.20 ak33 0.60 1a31 0.20 ao34 0.20 ak33 0.80 1a31 0.20 ak33 0.80 1a31 0.20 ak33 0.60 1a41 0.20 ao45 0.20 ak4C 0.60 1a41 0.20 ao45 0.20 ak4C 0.80 1a41 0.20 ak4C 0.80 1a41 0.20 ak4C 0.60 1a43 0.20 ak40 0.20 ak4D 0.60 1a43 0.20 ak40 0.20 ak4D 0.80 1a43 0.20 ak4D 0.80 1a43 0.20 ak4D k2 98 E/R 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 2.1E-16 0.0E+00 3.0E-17 0.0E+00 1.9E-18 0.0E+00 7.4E-16 0.0E+00 2.3E-15 0.0E+00 3.2E-16 0.0E+00 2.0E-17 0.0E+00 7.9E-15 0.0E+00 1.9E-16 0.0E+00 2.7E-17 0.0E+00 1.7E-18 0.0E+00 6.5E-16 0.0E+00 2.8E-14 0.0E+00 3.9E-15 0.0E+00 2.5E-16 0.0E+00 9.6E-14 0.0E+00 2.0E-15 0.0E+00 2.9E-16 0.0E+00 1.8E-17 0.0E+00 7.0E-15 0.0E+00 2.0E-15 0.0E+00 2.9E-16 0.0E+00 1.8E-17 0.0E+00 7.0E-15 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 Source 269 Table C.11 (continued) Peroxy radical cross reactions 2g21 XPOO 2g21 XSOO 2g21 XTOO 2g21 XAOO 2g40 XPOO 2g40 XSOO 2g40 XTOO 2g40 XAOO 2u51 XPOO 2u51 XSOO 2u51 XTOO 2u51 XAOO 2u52 XPOO 2u52 XSOO 2u52 XTOO 2u52 XAOO 2u71 XPOO 2u71 XSOO 2u71 XTOO 2u71 XAOO 2e72 XPOO 2e72 XSOO 2e72 XTOO 2e72 XAOO 2d21 XPOO 2d21 XSOO 2d21 XTOO 2d21 XAOO 2d31 XPOO 2d31 XSOO 2d31 XTOO 2d31 XAOO 2d32 XPOO 2d32 XSOO 2d32 XTOO 2d32 XAOO 2d33 XPOO 2d33 XSOO 2d33 XTOO 2d33 XAOO 2d34 XPOO 2d34 XSOO 2d34 XTOO 2d34 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1g21 0.20 go23 0.20 gd21 0.60 1g21 0.20 go23 0.20 gd21 0.80 1g21 0.20 gd21 0.80 1g21 0.20 gd21 0.80 1g40 0.20 go40 0.80 1g40 0.20 go40 1g40 1g40 0.80 1u52 0.20 uo52 0.80 1u52 0.20 uo52 1u52 1u52 0.60 1u51 0.20 uo52 0.20 uk51 0.60 1u51 0.20 uo52 0.20 uk51 0.80 1u51 0.20 uk51 0.80 1u51 0.20 uk51 0.60 1u71 0.20 uk71 0.20 ud71 0.60 1u71 0.20 uk71 0.20 ud71 0.80 1u71 0.20 ud71 0.80 1u71 0.20 ud71 0.80 1e71 0.20 ek71 0.80 1e71 0.20 ek71 1e71 1e71 0.60 1d21 0.20 do23 0.20 dd21 0.60 1d21 0.20 do23 0.20 dd21 0.80 1d21 0.20 dd21 0.80 1d21 0.20 dd21 0.60 1d32 0.20 do31 0.20 dk35 0.60 1d32 0.20 do31 0.20 dk35 0.80 1d32 0.20 dk35 0.80 1d32 0.20 dk35 0.60 1d31 0.20 do34 0.20 dk33 0.60 1d31 0.20 do34 0.20 dk33 0.80 1d31 0.20 dk33 0.80 1d31 0.20 dk33 0.60 1d34 0.20 dk35 0.20 dd32 0.60 1d34 0.20 dk35 0.20 dd32 0.80 1d34 0.20 dd32 0.80 1d34 0.20 dd32 0.60 1d35 0.20 do35 0.20 dd33 0.60 1d35 0.20 do35 0.20 dd33 0.80 1d35 0.20 dd33 0.80 1d35 0.20 dd33 k2 98 E/R 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 1.6e-15 0.0e+00 2.3e-16 0.0e+00 1.5e-17 0.0e+00 5.6e-15 0.0e+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 2.5E-14 0.0E+00 3.5E-15 0.0E+00 2.2E-16 0.0E+00 8.6E-14 0.0E+00 1.1E-15 0.0E+00 1.6E-16 0.0E+00 1.0E-17 0.0E+00 3.9E-15 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 4.1E-14 0.0E+00 5.9E-15 0.0E+00 3.7E-16 0.0E+00 1.4E-13 0.0E+00 Source 270 Table C.11 (continued) Peroxy radical cross reactions 2d41 XPOO 2d41 XSOO 2d41 XTOO 2d41 XAOO 2d42 XPOO 2d42 XSOO 2d42 XTOO 2d42 XAOO 2d43 XPOO 2d43 XSOO 2d43 XTOO 2d43 XAOO 2d44 XPOO 2d44 XSOO 2d44 XTOO 2d44 XAOO 2d45 XPOO 2d45 XSOO 2d45 XTOO 2d45 XAOO 2d47 XPOO 2d47 XSOO 2d47 XTOO 2d47 XAOO 2d48 XPOO 2d48 XSOO 2d48 XTOO 2d48 XAOO 2d49 XPOO 2d49 XSOO 2d49 XTOO 2d49 XAOO 2d50 XPOO 2d50 XSOO 2d50 XTOO 2d50 XAOO 2d51 XPOO 2d51 XSOO 2d51 XTOO 2d51 XAOO 2d52 XPOO 2d52 XSOO 2d52 XTOO 2d52 XAOO 2d53 XPOO 2d53 XSOO 2d53 XTOO 2d53 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1d41 0.20 dv45 0.20 dv42 0.60 1d41 0.20 dv45 0.20 dv42 0.80 1d41 0.20 dv42 0.80 1d41 0.20 dv42 0.60 1d42 0.20 dv45 0.20 dv44 0.60 1d42 0.20 dv45 0.20 dv44 0.80 1d42 0.20 dv44 0.80 1d42 0.20 dv44 0.60 1d44 0.20 dd42 0.20 dd43 0.60 1d44 0.20 dd42 0.20 dd43 0.80 1d44 0.20 dd43 0.80 1d44 0.20 dd43 0.80 1d43 0.20 do49 0.80 1d43 0.20 do49 1d43 1d43 0.60 1d45 0.20 dk47 0.20 dd43 0.60 1d45 0.20 dk47 0.20 dd43 0.80 1d45 0.20 dd43 0.80 1d45 0.20 dd43 0.60 1d47 0.20 do44 0.20 dk4C 0.60 1d47 0.20 do44 0.20 dk4C 0.80 1d47 0.20 dk4C 0.80 1d47 0.20 dk4C 0.60 1d48 0.20 do45 0.20 dk4A 0.60 1d48 0.20 do45 0.20 dk4A 0.80 1d48 0.20 dk4A 0.80 1d48 0.20 dk4A 0.60 1d49 0.20 do43 0.20 dd45 0.60 1d49 0.20 do43 0.20 dd45 0.80 1d49 0.20 dd45 0.80 1d49 0.20 dd45 0.60 1d5A 0.20 do57 0.20 dk5G 0.60 1d5A 0.20 do57 0.20 dk5G 0.80 1d5A 0.20 dk5G 0.80 1d5A 0.20 dk5G 0.80 1d51 0.20 dv56 0.80 1d51 0.20 dv56 1d51 1d51 0.60 1d52 0.20 dk59 0.20 dk53 0.60 1d52 0.20 dk59 0.20 dk53 0.80 1d52 0.20 dk53 0.80 1d52 0.20 dk53 0.60 1d53 0.20 dv56 0.20 dv55 0.60 1d53 0.20 dv56 0.20 dv55 0.80 1d53 0.20 dv55 0.80 1d53 0.20 dv55 k2 98 E/R 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 1.6E-15 0.0E+00 2.3E-16 0.0E+00 1.5E-17 0.0E+00 5.6E-15 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 3.0E-15 0.0E+00 4.2E-16 0.0E+00 2.7E-17 0.0E+00 1.0E-14 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 Source 271 Table C.11 (continued) Peroxy radical cross reactions 2d54 XPOO 2d54 XSOO 2d54 XTOO 2d54 XAOO 2d55 XPOO 2d55 XSOO 2d55 XTOO 2d55 XAOO 2d56 XPOO 2d56 XSOO 2d56 XTOO 2d56 XAOO 2d57 XPOO 2d57 XSOO 2d57 XTOO 2d57 XAOO 2d58 XPOO 2d58 XSOO 2d58 XTOO 2d58 XAOO 2d59 XPOO 2d59 XSOO 2d59 XTOO 2d59 XAOO 2d5A XPOO 2d5A XSOO 2d5A XTOO 2d5A XAOO 2d61 XPOO 2d61 XSOO 2d61 XTOO 2d61 XAOO 2d62 XPOO 2d62 XSOO 2d62 XTOO 2d62 XAOO 2d82 XPOO 2d82 XSOO 2d82 XTOO 2d82 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1d54 0.20 dk58 0.20 dd54 0.60 1d54 0.20 dk58 0.20 dd54 0.80 1d54 0.20 dd54 0.80 1d54 0.20 dd54 0.60 1d56 0.20 dk59 0.20 dk5B 0.60 1d56 0.20 dk59 0.20 dk5B 0.80 1d56 0.20 dk5B 0.80 1d56 0.20 dk5B 0.80 1d55 0.20 dd56 0.80 1d55 0.20 dd56 1d55 1d55 0.60 1d57 0.20 dk5D 0.20 dk5A 0.60 1d57 0.20 dk5D 0.20 dk5A 0.80 1d57 0.20 dk5A 0.80 1d57 0.20 dk5A 0.60 1d58 0.20 do53 0.20 dk5C 0.60 1d58 0.20 do53 0.20 dk5C 0.80 1d58 0.20 dk5C 0.80 1d58 0.20 dk5C 0.80 1d59 0.20 do59 0.80 1d59 0.20 do59 1d59 1d59 0.80 1d5B 0.20 dd57 0.80 1d5B 0.20 dd57 1d5B 1d5B 0.80 1d61 0.20 do65 0.80 1d61 0.20 do65 1d61 1d61 0.80 1d62 0.20 do66 0.80 1d62 0.20 do66 1d62 1d62 0.80 1d81 0.20 dk82 0.80 1d81 0.20 dk82 1d81 1d81 k2 98 E/R 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 2.1E-16 0.0E+00 3.0E-17 0.0E+00 1.9E-18 0.0E+00 7.4E-16 0.0E+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 1.9E-16 0.0E+00 2.7E-17 0.0E+00 1.7E-18 0.0E+00 6.5E-16 0.0E+00 1.3E-15 0.0E+00 1.8E-16 0.0E+00 1.1E-17 0.0E+00 4.3E-15 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 Source 272 Table C.11 (continued) Peroxy radical cross reactions 2h51 XPOO 2h51 XSOO 2h51 XTOO 2h51 XAOO 2h52 XPOO 2h52 XSOO 2h52 XTOO 2h52 XAOO 2h53 XPOO 2h53 XSOO 2h53 XTOO 2h53 XAOO 2h54 XPOO 2h54 XSOO 2h54 XTOO 2h54 XAOO 2h71 XPOO 2h71 XSOO 2h71 XTOO 2h71 XAOO 2v31 XPOO 2v31 XSOO 2v31 XTOO 2v31 XAOO 2a32 XPOO 2a32 XSOO 2a32 XTOO 2a32 XAOO 2k33 XPOO 2k33 XSOO 2k33 XTOO 2k33 XAOO 2k34 XPOO 2k34 XSOO 2k34 XTOO 2k34 XAOO 2k40 XPOO 2k40 XSOO 2k40 XTOO 2k40 XAOO 2k42 XPOO 2k42 XSOO 2k42 XTOO 2k42 XAOO 2k43 XPOO 2k43 XSOO 2k43 XTOO 2k43 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1k54 0.20 ho5A 0.20 hk51 0.60 1k54 0.20 ho5A 0.20 hk51 0.80 1k54 0.20 hk51 0.80 1k54 0.20 hk51 0.80 1h53 0.20 ho5B 0.80 1h53 0.20 ho5B 1h53 1h53 0.60 1h51 0.20 hn58 0.20 hn57 0.60 1h51 0.20 hn58 0.20 hn57 0.80 1h51 0.20 hn57 0.80 1h51 0.20 hn57 0.80 1h52 0.20 hn59 0.80 1h52 0.20 hn59 1h52 1h52 0.80 1h71 0.20 hk71 0.80 1h71 0.20 hk71 1h71 1h71 0.60 1v34 0.20 vk31 0.20 dv31 0.60 1v34 0.20 vk31 0.20 dv31 0.80 1v34 0.20 dv31 0.80 1v34 0.20 dv31 0.60 1a32 0.20 ak31 0.20 ad34 0.60 1a32 0.20 ak31 0.20 ad34 0.80 1a32 0.20 ad34 0.80 1a32 0.20 ad34 0.60 1k33 0.20 ko37 0.20 dk33 0.60 1k33 0.20 ko37 0.20 dk33 0.80 1k33 0.20 dk33 0.80 1k33 0.20 dk33 0.60 1k31 0.20 ko31 0.20 dk35 0.60 1k31 0.20 ko31 0.20 dk35 0.80 1k31 0.20 dk35 0.80 1k31 0.20 dk35 0.60 1k40 0.20 ko46 0.20 dk48 0.60 1k40 0.20 ko46 0.20 dk48 0.80 1k40 0.20 dk48 0.80 1k40 0.20 dk48 0.60 1k44 0.20 ko46 0.20 kk42 0.60 1k44 0.20 ko46 0.20 kk42 0.80 1k44 0.20 kk42 0.80 1k44 0.20 kk42 0.60 1k41 0.20 kk42 0.20 dk40 0.60 1k41 0.20 kk42 0.20 dk40 0.80 1k41 0.20 dk40 0.80 1k41 0.20 dk40 k2 98 E/R 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 1.1E-15 0.0E+00 1.6E-16 0.0E+00 1.0E-17 0.0E+00 3.9E-15 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.9E-12 0.0E+00 4.1E-13 0.0E+00 2.6E-14 0.0E+00 1.0E-11 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source 273 Table C.11 (continued) Peroxy radical cross reactions 2k44 XPOO 2k44 XSOO 2k44 XTOO 2k44 XAOO 2k45 XPOO 2k45 XSOO 2k45 XTOO 2k45 XAOO 2k46 XPOO 2k46 XSOO 2k46 XTOO 2k46 XAOO 2k47 XPOO 2k47 XSOO 2k47 XTOO 2k47 XAOO 2k48 XPOO 2k48 XSOO 2k48 XTOO 2k48 XAOO 2k49 XPOO 2k49 XSOO 2k49 XTOO 2k49 XAOO 2k4B XPOO 2k4B XSOO 2k4B XTOO 2k4B XAOO 2k4C XPOO 2k4C XSOO 2k4C XTOO 2k4C XAOO 2k51 XPOO 2k51 XSOO 2k51 XTOO 2k51 XAOO 2k52 XPOO 2k52 XSOO 2k52 XTOO 2k52 XAOO 2k53 XPOO 2k53 XSOO 2k53 XTOO 2k53 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1k45 0.20 ko42 0.20 kk43 0.60 1k45 0.20 ko42 0.20 kk43 0.80 1k45 0.20 kk43 0.80 1k45 0.20 kk43 0.60 1k42 0.20 ko41 0.20 dk49 0.60 1k42 0.20 ko41 0.20 dk49 0.80 1k42 0.20 dk49 0.80 1k42 0.20 dk49 0.60 1k4D 0.20 ko47 0.20 dk4E 0.60 1k4D 0.20 ko47 0.20 dk4E 0.80 1k4D 0.20 dk4E 0.80 1k4D 0.20 dk4E 0.60 1k47 0.20 ko45 0.20 dk4C 0.60 1k47 0.20 ko45 0.20 dk4C 0.80 1k47 0.20 dk4C 0.80 1k47 0.20 dk4C 0.60 1k46 0.20 ko43 0.20 dk4A 0.60 1k46 0.20 ko43 0.20 dk4A 0.80 1k46 0.20 dk4A 0.80 1k46 0.20 dk4A 0.60 1k48 0.20 ko43 0.20 dk4B 0.60 1k48 0.20 ko43 0.20 dk4B 0.80 1k48 0.20 dk4B 0.80 1k48 0.20 dk4B 0.60 1k4B 0.20 ko48 0.20 dk4D 0.60 1k4B 0.20 ko48 0.20 dk4D 0.80 1k4B 0.20 dk4D 0.80 1k4B 0.20 dk4D 0.60 1k4C 0.20 ko47 0.20 dk47 0.60 1k4C 0.20 ko47 0.20 dk47 0.80 1k4C 0.20 dk47 0.80 1k4C 0.20 dk47 0.80 1k51 0.20 ko54 0.80 1k51 0.20 ko54 1k51 1k51 0.60 1k52 0.20 ko57 0.20 kk52 0.60 1k52 0.20 ko57 0.20 kk52 0.80 1k52 0.20 kk52 0.80 1k52 0.20 kk52 0.60 1k53 0.20 kk53 0.20 ko58 0.60 1k53 0.20 kk53 0.20 ko58 0.80 1k53 0.20 kk53 0.80 1k53 0.20 kk53 a Reaction added by Williams [1994a] k2 98 E/R 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-12 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 1.4E-15 0.0E+00 2.0E-16 0.0E+00 1.3E-17 0.0E+00 4.9E-15 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 Source a a a a a a a a 274 Table C.11 (continued) Peroxy radical cross reactions 2l11 XPOO 2l11 XSOO 2l11 XTOO 2l11 XAOO 2l21 XPOO 2l21 XSOO 2l21 XTOO 2l21 XAOO 2l22 XPOO 2l22 XSOO 2l22 XTOO 2l22 XAOO 2l31 XPOO 2l31 XSOO 2l31 XTOO 2l31 XAOO 2l41 XPOO 2l41 XSOO 2l41 XTOO 2l41 XAOO 2l42 XPOO 2l42 XSOO 2l42 XTOO 2l42 XAOO 2l43 XPOO 2l43 XSOO 2l43 XTOO 2l43 XAOO 2m01 XPOO 2m01 XSOO 2m01 XTOO 2m01 XAOO 2m11 XPOO 2m11 XSOO 2m11 XTOO 2m11 XAOO 2m12 XPOO 2m12 XSOO 2m12 XTOO 2m12 XAOO 2m21 XPOO 2m21 XSOO 2m21 XTOO 2m21 XAOO 2m22 XPOO 2m22 XSOO 2m22 XTOO 2m22 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1l11 0.20 lo11 0.20 ld11 0.60 1l11 0.20 lo11 0.20 ld11 0.80 1l11 0.20 ld11 0.80 1l11 0.20 ld11 0.60 1l21 0.20 lo21 0.20 ld21 0.60 1l21 0.20 lo21 0.20 ld21 0.80 1l21 0.20 ld21 0.80 1l21 0.20 ld21 0.60 1l22 0.20 lo22 0.20 lk21 0.60 1l22 0.20 lo22 0.20 lk21 0.80 1l22 0.20 lk21 0.80 1l22 0.20 lk21 0.60 1l31 0.20 lo31 0.20 lk31 0.60 1l31 0.20 lo31 0.20 lk31 0.80 1l31 0.20 lk31 0.80 1l31 0.20 lk31 0.60 1l41 0.20 lo41 0.20 lk41 0.60 1l41 0.20 lo41 0.20 lk41 0.80 1l41 0.20 lk41 0.80 1l41 0.20 lk41 0.80 1l42 0.20 lo42 0.80 1l42 0.20 lo42 1l42 1l42 0.60 1l43 0.20 lo43 0.20 ld41 0.60 1l43 0.20 lo43 0.20 ld41 0.80 1l43 0.20 ld41 0.80 1l43 0.20 ld41 0.60 NH2O 0.20 mo01 0.20 HNO 0.60 NH2O 0.20 mo01 0.20 HNO 0.80 NH2O 0.20 HNO 0.80 NH2O 0.20 HNO 0.60 1m13 0.20 mo11 0.20 md11 0.60 1m13 0.20 mo11 0.20 md11 0.80 1m13 0.20 md11 0.80 1m13 0.20 md11 0.60 1m11 0.20 mo12 0.20 wo11 0.60 1m11 0.20 mo12 0.20 wo11 0.80 1m11 0.20 wo11 0.80 1m11 0.20 wo11 0.60 1m23 0.20 mo21 0.20 mk21 0.60 1m23 0.20 mo21 0.20 mk21 0.80 1m23 0.20 mk21 0.80 1m23 0.20 mk21 0.60 1m24 0.20 mo22 0.20 md21 0.60 1m24 0.20 mo22 0.20 md21 0.80 1m24 0.20 md21 0.80 1m24 0.20 md21 k2 98 E/R 6.2E-13 0.0E+00 8.7E-14 0.0E+00 5.5E-15 0.0E+00 2.1E-12 0.0E+00 4.7E-14 0.0E+00 6.6E-15 0.0E+00 4.2E-16 0.0E+00 1.6E-13 0.0E+00 4.7E-14 0.0E+00 6.6E-15 0.0E+00 4.2E-16 0.0E+00 1.6E-13 0.0E+00 3.4E-15 0.0E+00 4.8E-16 0.0E+00 3.0E-17 0.0E+00 1.2E-14 0.0E+00 3.0E-15 0.0E+00 4.2E-16 0.0E+00 2.7E-17 0.0E+00 1.0E-14 0.0E+00 2.4E-16 0.0E+00 3.5E-17 0.0E+00 2.2E-18 0.0E+00 8.4E-16 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 6.3E-13 0.0E+00 9.0E-14 0.0E+00 5.7E-15 0.0E+00 2.2E-12 0.0E+00 6.2E-13 0.0E+00 8.7E-14 0.0E+00 5.5E-15 0.0E+00 2.1E-12 0.0E+00 2.4E-14 0.0E+00 1.6E-15 0.0E+00 3.0E-16 0.0E+00 9.8E-14 0.0E+00 4.7E-14 0.0E+00 6.6E-15 0.0E+00 4.2E-16 0.0E+00 1.6E-13 0.0E+00 4.7E-14 0.0E+00 6.6E-15 0.0E+00 4.2E-16 0.0E+00 1.6E-13 0.0E+00 Source 275 Table C.11 (continued) Peroxy radical cross reactions 2m23 XPOO 2m23 XSOO 2m23 XTOO 2m23 XAOO 2m33 XPOO 2m33 XSOO 2m33 XTOO 2m33 XAOO 2n11 XPOO 2n11 XSOO 2n11 XTOO 2n11 XAOO 2n21 XPOO 2n21 XSOO 2n21 XTOO 2n21 XAOO 2n22 XPOO 2n22 XSOO 2n22 XTOO 2n22 XAOO 2n23 XPOO 2n23 XSOO 2n23 XTOO 2n23 XAOO 2n31 XPOO 2n31 XSOO 2n31 XTOO 2n31 XAOO 2n32 XPOO 2n32 XSOO 2n32 XTOO 2n32 XAOO 2n33 XPOO 2n33 XSOO 2n33 XTOO 2n33 XAOO 2n34 XPOO 2n34 XSOO 2n34 XTOO 2n34 XAOO 2n35 XPOO 2n35 XSOO 2n35 XTOO 2n35 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 1m25 0.20 mo23 0.80 1m25 0.20 mo23 1m25 1m25 0.60 1m33 0.20 mo31 0.20 md31 0.60 1m33 0.20 mo31 0.20 md31 0.80 1m33 0.20 md31 0.80 1m33 0.20 md31 0.60 1n11 0.20 no11 0.20 nd11 0.60 1n11 0.20 no11 0.20 nd11 0.80 1n11 0.20 nd11 0.80 1n11 0.20 nd11 0.60 1n21 0.20 nd22 0.20 nd23 0.60 1n21 0.20 nd22 0.20 nd23 0.80 1n21 0.20 nd23 0.80 1n21 0.20 nd23 0.60 1n22 0.20 no21 0.20 nd21 0.60 1n22 0.20 no21 0.20 nd21 0.80 1n22 0.20 nd21 0.80 1n22 0.20 nd21 0.60 1n23 0.20 no23 0.20 nk23 0.60 1n23 0.20 no23 0.20 nk23 0.80 1n23 0.20 nk23 0.80 1n23 0.20 nk23 0.60 1n31 0.20 nv39 0.20 nv35 0.60 1n31 0.20 nv39 0.20 nv35 0.80 1n31 0.20 nv35 0.80 1n31 0.20 nv35 0.60 1n32 0.20 no33 0.20 nk38 0.60 1n32 0.20 no33 0.20 nk38 0.80 1n32 0.20 nk38 0.80 1n32 0.20 nk38 0.60 1n33 0.20 no34 0.20 nd35 0.60 1n33 0.20 no34 0.20 nd35 0.80 1n33 0.20 nd35 0.80 1n33 0.20 nd35 0.60 1n34 0.20 no32 0.20 nd34 0.60 1n34 0.20 no32 0.20 nd34 0.80 1n34 0.20 nd34 0.80 1n34 0.20 nd34 0.60 1n35 0.20 no35 0.20 nd38 0.60 1n35 0.20 no35 0.20 nd38 0.80 1n35 0.20 nd38 0.80 1n35 0.20 nd38 a Reaction added by Williams [1994a] k2 98 E/R 5.0E-15 0.0E+00 3.0E-16 0.0E+00 6.0E-17 0.0E+00 1.9E-14 0.0E+00 4.1E-14 0.0E+00 5.9E-15 0.0E+00 3.7E-16 0.0E+00 1.4E-13 0.0E+00 2.5E-12 0.0E+00 3.5E-13 0.0E+00 2.2E-14 0.0E+00 8.6E-12 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 4.1E-14 0.0E+00 5.9E-15 0.0E+00 3.7E-16 0.0E+00 1.4E-13 0.0E+00 Source a a a a 276 Table C.11 (continued) Peroxy radical cross reactions 2n41 XPOO 2n41 XSOO 2n41 XTOO 2n41 XAOO 2n42 XPOO 2n42 XSOO 2n42 XTOO 2n42 XAOO 2n43 XPOO 2n43 XSOO 2n43 XTOO 2n43 XAOO 2n44 XPOO 2n44 XSOO 2n44 XTOO 2n44 XAOO 2n45 XPOO 2n45 XSOO 2n45 XTOO 2n45 XAOO 2n46 XPOO 2n46 XSOO 2n46 XTOO 2n46 XAOO 2n47 XPOO 2n47 XSOO 2n47 XTOO 2n47 XAOO 2n48 XPOO 2n48 XSOO 2n48 XTOO 2n48 XAOO 2n49 XPOO 2n49 XSOO 2n49 XTOO 2n49 XAOO 2n4a XPOO 2n4a XSOO 2n4a XTOO 2n4a XAOO 2n4b XPOO 2n4b XSOO 2n4b XTOO 2n4b XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1n41 0.20 nv4E 0.20 nv4D 0.60 1n41 0.20 nv4E 0.20 nv4D 0.80 1n41 0.20 nv4D 0.80 1n41 0.20 nv4D 0.60 1n42 0.20 nk4G 0.20 nk4F 0.60 1n42 0.20 nk4G 0.20 nk4F 0.80 1n42 0.20 nk4F 0.80 1n42 0.20 nk4F 0.60 1n43 0.20 nv4H 0.20 nd4A 0.60 1n43 0.20 nv4H 0.20 nd4A 0.80 1n43 0.20 nd4A 0.80 1n43 0.20 nd4A 0.60 1n44 0.20 nk4I 0.20 nd4B 0.60 1n44 0.20 nk4I 0.20 nd4B 0.80 1n44 0.20 nd4B 0.80 1n44 0.20 nd4B 0.60 1n47 0.20 no43 0.20 nk45 0.60 1n47 0.20 no43 0.20 nk45 0.80 1n47 0.20 nk45 0.80 1n47 0.20 nk45 0.80 1n46 0.20 no45 0.80 1n46 0.20 no45 1n46 1n46 0.80 1n45 0.20 nd4C 0.80 1n45 0.20 nd4C 1n45 1n45 0.60 1n48 0.20 nk4A 0.20 nk47 0.60 1n48 0.20 nk4A 0.20 nk47 0.80 1n48 0.20 nk47 0.80 1n48 0.20 nk47 0.60 1n49 0.20 nk4C 0.20 nd4E 0.60 1n49 0.20 nk4C 0.20 nd4E 0.80 1n49 0.20 nd4E 0.80 1n49 0.20 nd4E 0.60 1n4a 0.20 nk49 0.20 no46 0.60 1n4a 0.20 nk49 0.20 no46 0.80 1n4a 0.20 nk49 0.8 1n4a 0.20 nk49 0.60 1n4b 0.20 nd48 0.20 no4C 0.60 1n4b 0.20 nd48 0.20 no4C 0.80 1n4b 0.20 nd48 0.80 1n4b 0.20 nd48 a Reaction added by Williams [1994a] k2 98 E/R 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 1.6E-15 0.0E+00 2.3E-16 0.0E+00 1.5E-17 0.0E+00 5.6E-15 0.0E+00 1.6E-15 0.0E+00 2.3E-16 0.0E+00 1.5E-17 0.0E+00 5.6E-15 0.0E+00 2.0E-13 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 3.0E-15 0.0E+00 4.2E-16 0.0E+00 2.7E-17 0.0E+00 1.0E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source a a a a a a a a 277 Table C.11 (continued) Peroxy radical cross reactions 2n51 XPOO 2n51 XSOO 2n51 XTOO 2n51 XAOO 2n52 XPOO 2n52 XSOO 2n52 XTOO 2n52 XAOO 2n53 XPOO 2n53 XSOO 2n53 XTOO 2n53 XAOO 2n54 XPOO 2n54 XSOO 2n54 XTOO 2n54 XAOO 2n55 XPOO 2n55 XSOO 2n55 XTOO 2n55 XAOO 2n56 XPOO 2n56 XSOO 2n56 XTOO 2n56 XAOO 2n57 XPOO 2n57 XSOO 2n57 XTOO 2n57 XAOO 2n58 XPOO 2n58 XSOO 2n58 XTOO 2n58 XAOO 2n59 XPOO 2n59 XSOO 2n59 XTOO 2n59 XAOO 2n5a XPOO 2n5a XSOO 2n5a XTOO 2n5a XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 1n51 0.20 nu54 0.80 1n51 0.20 nu54 1n51 1n51 0.60 1n52 0.20 nu55 0.20 nu53 0.60 1n52 0.20 nu55 0.20 nu53 0.80 1n52 0.20 nu53 0.80 1n52 0.20 nu53 0.60 1n53 0.20 no5B 0.30 nk51 0.60 1n53 0.20 no5B 0.30 nk51 0.80 1n53 0.20 nk51 0.80 1n53 0.20 nk51 0.80 1n54 0.20 no5C 0.80 1n54 0.20 no5C 1n54 1n54 0.60 1n55 0.20 nk52 0.20 no57 0.60 1n55 0.20 nk52 0.20 no57 0.80 1n55 0.20 nk52 0.80 1n55 0.20 nk52 0.60 1n56 0.20 nk53 0.20 no58 0.60 1n56 0.20 nk53 0.20 no58 0.80 1n56 0.20 nk53 0.80 1n56 0.20 nk53 0.60 1n57 0.20 nk54 0.20 no5E 0.60 1n57 0.20 nk54 0.20 no5E 0.80 1n57 0.20 nk54 0.80 1n57 0.20 nk54 0.60 1n58 0.20 nk55 0.20 no5F 0.60 1n58 0.20 nk55 0.20 no5F 0.80 1n58 0.20 nk55 0.80 1n58 0.20 nk55 0.60 1n59 0.20 nk56 0.20 no5G 0.60 1n59 0.20 nk56 0.20 no5G 0.80 1n59 0.20 nk56 0.80 1n59 0.20 nk56 0.60 1n5a 0.20 nd58 0.20 no5H 0.60 1n5a 0.20 nd58 0.20 no5H 0.80 1n5a 0.20 nd58 0.80 1n5a 0.20 no5H a Reaction added by Williams [1994a] k2 98 E/R 2.1E-16 0.0E+00 3.0E-17 0.0E+00 1.9E-18 0.0E+00 7.4E-16 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7e-14 0.0e+00 2.4e-15 0.0e+00 1.6e-16 0.0e+00 6.0e-14 0.0e+00 1.4e-15 0.0e+00 2.0E-16 0.0e+00 1.3e-17 0.0e+00 4.9e-15 0.0e+00 2.6e-15 0.0e+00 3.7E-16 0.0E+00 2.3e-17 0.0e+00 9.0e-15 0.0e+00 2.6e-15 0.0e+00 3.7E-16 0.0E+00 2.3e-17 0.0e+00 9.0e-15 0.0e+00 2.6e-15 0.0e+00 3.7E-16 0.0E+00 2.3e-17 0.0e+00 9.0e-15 0.0e+00 1.7e-14 0.0e+00 2.5e-15 0.0e+00 1.6e-16 0.0e+00 6.0e-14 0.0e+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6e-16 0.0e+00 6.0e-14 0.0e+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0e+00 1.1E-13 0.0e+00 Source a a a a a a a a a a a a a a a a a a a a a a a a 278 Table C.11 (continued) Peroxy radical cross reactions 2nA1 XPOO 2nA1 XSOO 2nA1 XTOO 2nA1 XAOO 2o11 XPOO 2o11 XSOO 2o11 XTOO 2o11 XAOO 2o21 XPOO 2o21 XSOO 2o21 XTOO 2o21 XAOO 2o31 XPOO 2o31 XSOO 2o31 XTOO 2o31 XAOO 2o32 XPOO 2o32 XSOO 2o32 XTOO 2o32 XAOO 2o33 XPOO 2o33 XSOO 2o33 XTOO 2o33 XAOO 2o34 XPOO 2o34 XSOO 2o34 XTOO 2o34 XAOO 2o35 XPOO 2o35 XSOO 2o35 XTOO 2o35 XAOO 2o40 XPOO 2o40 XSOO 2o40 XTOO 2o40 XAOO 2a43 XPOO 2a43 XSOO 2a43 XTOO 2a43 XAOO 2o42 XPOO 2o42 XSOO 2o42 XTOO 2o42 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 1nA1 0.20 ntA2 0.80 1nA1 0.20 ntA2 1nA1 1nA1 0.60 1o11 0.20 oo11 0.20 a011 0.60 1o11 0.20 oo11 0.20 a011 0.80 1o11 0.20 a011 0.80 1o11 0.20 a011 0.60 1o22 0.20 oo21 0.20 do23 0.60 1o22 0.20 oo21 0.20 do23 0.80 1o22 0.20 do23 0.80 1o22 0.20 do23 0.60 1o32 0.20 oo32 0.20 ko31 0.60 1o32 0.20 oo32 0.20 ko31 0.80 1o32 0.20 ko31 0.80 1o32 0.20 ko31 0.60 1o33 0.20 oo31 0.20 ko37 0.60 1o33 0.20 oo31 0.20 ko37 0.80 1o33 0.20 ko37 0.80 1o33 0.20 ko37 0.60 1o34 0.20 oo31 0.20 do34 0.60 1o34 0.20 oo31 0.20 do34 0.80 1o34 0.20 do34 0.80 1o34 0.20 do34 0.60 1o35 0.20 oo33 0.20 do35 0.60 1o35 0.20 oo33 0.20 do35 0.80 1o35 0.20 do35 0.80 1o35 0.20 do35 0.60 1o31 0.20 oo32 0.20 do31 0.60 1o31 0.20 oo32 0.20 do31 0.80 1o31 0.20 do31 0.80 1o31 0.20 do31 0.60 1o40 0.20 oo41 0.20 do46 0.60 1o40 0.20 oo41 0.20 do46 0.80 1o40 0.20 do46 0.80 1o40 0.20 do46 0.80 1a44 0.20 ao48 0.80 1a44 0.20 ao48 1a44 1a44 0.60 1o43 0.20 oo42 0.20 do41 0.60 1o43 0.20 oo42 0.20 do41 0.80 1o43 0.20 do41 0.80 1o43 0.20 do41 k2 98 E/R 1.1E-15 0.0E+00 1.6E-16 0.0E+00 1.0E-17 0.0E+00 3.9E-15 0.0E+00 2.5E-12 0.0E+00 3.5E-13 0.0E+00 2.2E-14 0.0E+00 8.6E-12 0.0E+00 1.5E-12 0.0E+00 2.1E-13 0.0E+00 1.4E-14 0.0E+00 5.2E-12 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 4.1E-14 0.0E+00 5.9E-15 0.0E+00 3.7E-16 0.0E+00 1.4E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 1.6E-15 0.0E+00 2.3E-16 0.0E+00 1.5E-17 0.0E+00 5.6E-15 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 Source 279 Table C.11 (continued) Peroxy radical cross reactions 2o43 XPOO 2o43 XSOO 2o43 XTOO 2o43 XAOO 2o44 XPOO 2o44 XSOO 2o44 XTOO 2o44 XAOO 2o45 XPOO 2o45 XSOO 2o45 XTOO 2o45 XAOO 2o46 XPOO 2o46 XSOO 2o46 XTOO 2o46 XAOO 2a47 XPOO 2a47 XSOO 2a47 XTOO 2a47 XAOO 2o48 XPOO 2o48 XSOO 2o48 XTOO 2o48 XAOO 2o49 XPOO 2o49 XSOO 2o49 XTOO 2o49 XAOO 2o4A XPOO 2o4A XSOO 2o4A XTOO 2o4A XAOO 2o4B XPOO 2o4B XSOO 2o4B XTOO 2o4B XAOO 2o4C XPOO 2o4C XSOO 2o4C XTOO 2o4C XAOO 2o4D XPOO 2o4D XSOO 2o4D XTOO 2o4D XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1o44 0.20 oo47 0.20 ko42 0.60 1o44 0.20 oo47 0.20 ko42 0.80 1o44 0.20 ko42 0.80 1o44 0.20 ko42 0.80 1o41 0.20 oo43 0.80 1o41 0.20 oo43 1o41 1o41 0.60 1o45 0.20 oo43 0.20 do42 0.60 1o45 0.20 oo43 0.20 do42 0.80 1o45 0.20 do42 0.80 1o45 0.20 do42 0.60 1o46 0.20 oo44 0.20 do44 0.60 1o46 0.20 oo44 0.20 do44 0.80 1o46 0.20 do44 0.80 1o46 0.20 do44 0.60 1a42 0.20 ao46 0.20 ad49 0.60 1a42 0.20 ao46 0.20 ad49 0.80 1a42 0.20 ad49 0.80 1a42 0.20 ad49 0.60 1o48 0.20 oo48 0.20 do49 0.60 1o48 0.20 oo48 0.20 do49 0.80 1o48 0.20 do49 0.80 1o48 0.20 do49 0.60 1o49 0.20 oo49 0.20 do40 0.60 1o49 0.20 oo49 0.20 do40 0.80 1o49 0.20 do40 0.80 1o49 0.20 do40 0.60 1o4A 0.20 oo45 0.20 do43 0.60 1o4A 0.20 oo45 0.20 do43 0.80 1o4A 0.20 do43 0.80 1o4A 0.20 do43 0.60 1o4B 0.20 oo46 0.20 do45 0.60 1o4B 0.20 oo46 0.20 do45 0.80 1o4B 0.20 do45 0.80 1o4B 0.20 do45 0.60 1o4C 0.20 oo44 0.20 ko45 0.60 1o4C 0.20 oo44 0.20 ko45 0.80 1o4C 0.20 ko45 0.80 1o4C 0.20 ko45 0.60 1o4D 0.20 oo47 0.20 do48 0.60 1o4D 0.20 oo47 0.20 do48 0.80 1o4D 0.20 do48 0.80 1o4D 0.20 do48 k2 98 E/R 9.4E-13 0.0E+00 1.3E-13 0.0E+00 8.4E-15 0.0E+00 3.3E-12 0.0E+00 1.6E-15 0.0E+00 2.3E-16 0.0E+00 1.5E-17 0.0E+00 5.6E-15 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 3.6E-14 0.0E+00 5.1E-15 0.0E+00 3.2E-16 0.0E+00 1.3E-13 0.0E+00 3.0E-15 0.0E+00 4.2E-16 0.0E+00 2.7E-17 0.0E+00 1.0E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source 280 Table C.11 (continued) Peroxy radical cross reactions 2o50 XPOO 2o50 XSOO 2o50 XTOO 2o50 XAOO 2o51 XPOO 2o51 XSOO 2o51 XTOO 2o51 XAOO 2o52 XPOO 2o52 XSOO 2o52 XTOO 2o52 XAOO 2o53 XPOO 2o53 XSOO 2o53 XTOO 2o53 XAOO 2o54 XPOO 2o54 XSOO 2o54 XTOO 2o54 XAOO 2o55 XPOO 2o55 XSOO 2o55 XTOO 2o55 XAOO 2o56 XPOO 2o56 XSOO 2o56 XTOO 2o56 XAOO 2o57 XPOO 2o57 XSOO 2o57 XTOO 2o57 XAOO 2o58 XPOO 2o58 XSOO 2o58 XTOO 2o58 XAOO 2o59 XPOO 2o59 XSOO 2o59 XTOO 2o59 XAOO 2o5A XPOO 2o5A XSOO 2o5A XTOO 2o5A XAOO 2o5B XPOO 2o5B XSOO 2o5B XTOO 2o5B XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1o50 0.20 oo53 0.20 ko50 0.60 1o50 0.20 oo53 0.20 ko50 0.80 1o50 0.20 ko50 0.80 1o50 0.20 ko50 0.60 1o52 0.20 oo51 0.20 ko56 0.60 1o52 0.20 oo51 0.20 ko56 0.80 1o52 0.20 ko56 0.80 1o52 0.20 ko56 0.60 1o54 0.20 oo54 0.20 ko53 0.60 1o54 0.20 oo54 0.20 ko53 0.80 1o54 0.20 ko53 0.80 1o54 0.20 ko53 0.60 1o53 0.20 oo55 0.20 ko51 0.60 1o53 0.20 oo55 0.20 ko51 0.80 1o53 0.20 ko51 0.80 1o53 0.20 ko51 0.60 1o51 0.20 oo57 0.20 ko55 0.60 1o51 0.20 oo57 0.20 ko55 0.80 1o51 0.20 ko55 0.80 1o51 0.20 ko55 0.60 1o50 0.20 oo54 0.20 do57 0.60 1o50 0.20 oo54 0.20 do57 0.80 1o50 0.20 do57 0.80 1o50 0.20 do57 0.60 1o56 0.20 oo51 0.20 ko52 0.60 1o56 0.20 oo51 0.20 ko52 0.80 1o56 0.20 ko52 0.80 1o56 0.20 ko52 0.60 1o57 0.20 oo51 0.20 do52 0.60 1o57 0.20 oo51 0.20 do52 0.80 1o57 0.20 do52 0.80 1o57 0.20 do52 0.60 1o58 0.20 oo58 0.20 do53 0.60 1o58 0.20 oo58 0.20 do53 0.80 1o58 0.20 do53 0.80 1o58 0.20 do53 0.60 1o59 0.20 oo52 0.20 do54 0.60 1o59 0.20 oo52 0.20 do54 0.80 1o59 0.20 do54 0.80 1o59 0.20 do54 0.60 1o5C 0.20 oo59 0.20 ko54 0.60 1o5C 0.20 oo59 0.20 ko54 0.80 1o5C 0.20 ko54 0.80 1o5C 0.20 ko54 0.60 1o5B 0.20 oo59 0.20 do50 0.60 1o5B 0.20 oo59 0.20 do50 0.80 1o5B 0.20 do50 0.80 1o5B 0.20 do50 k2 98 E/R 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 2.6E-15 0.0E+00 3.7E-16 0.0E+00 2.3E-17 0.0E+00 9.0E-15 0.0E+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 3.2E-14 0.0E+00 4.5E-15 0.0E+00 2.8E-16 0.0E+00 1.1E-13 0.0E+00 1.7E-14 0.0E+00 2.5E-15 0.0E+00 1.6E-16 0.0E+00 6.0E-14 0.0E+00 2.1e-13 0.0e+00 3.0e-14 0.0e+00 1.9e-15 0.0e+00 7.3e-13 0.0e+00 Source 281 Table C.11 (continued) Peroxy radical cross reactions 2a51 XPOO 2a51 XSOO 2a51 XTOO 2a51 XAOO 2a50 XPOO 2a50 XSOO 2a50 XTOO 2a50 XAOO 2a53 XPOO 2a53 XSOO 2a53 XTOO 2a53 XAOO 2o61 XPOO 2o61 XSOO 2o61 XTOO 2o61 XAOO 2o62 XPOO 2o62 XSOO 2o62 XTOO 2o62 XAOO 2o63 XPOO 2o63 XSOO 2o63 XTOO 2o63 XAOO 2o64 XPOO 2o64 XSOO 2o64 XTOO 2o64 XAOO 2o65 XPOO 2o65 XSOO 2o65 XTOO 2o65 XAOO 2o71 XPOO 2o71 XSOO 2o71 XTOO 2o71 XAOO 2o81 XPOO 2o81 XSOO 2o81 XTOO 2o81 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1a50 0.20 ak57 0.20 ak55 0.60 1a50 0.20 ak57 0.20 ak55 0.80 1a50 0.20 ak55 0.80 1a50 0.20 ak55 0.60 1a51 0.20 ak57 0.20 ak55 0.60 1a51 0.20 ak57 0.20 ak55 0.80 1a51 0.20 ak55 0.80 1a51 0.20 ak55 0.60 1a52 0.20 ak58 0.20 ad53 0.60 1a52 0.20 ak58 0.20 ad53 0.80 1a52 0.20 ad53 0.80 1a52 0.20 ad53 0.60 1o61 0.20 oo61 0.20 dd61 0.60 1o61 0.20 oo61 0.20 dd61 0.80 1o61 0.20 dd61 0.80 1o61 0.20 dd61 0.60 1o63 0.20 oo62 0.20 do62 0.60 1o63 0.20 oo62 0.20 do62 0.80 1o63 0.20 do62 0.80 1o63 0.20 do62 0.60 1o64 0.20 oo63 0.20 do64 0.60 1o64 0.20 oo63 0.20 do64 0.80 1o64 0.20 do64 0.80 1o64 0.20 do64 0.60 1o62 0.20 oo64 0.20 do63 0.60 1o62 0.20 oo64 0.20 do63 0.80 1o62 0.20 do63 0.80 1o62 0.20 do63 0.60 1o65 0.20 oo65 0.20 do65 0.60 1o65 0.20 oo65 0.20 do65 0.80 1o65 0.20 do65 0.80 1o65 0.20 do65 0.60 1o71 0.20 oo71 0.20 ko71 0.60 1o71 0.20 oo71 0.20 ko71 0.80 1o71 0.20 ko71 0.80 1o71 0.20 ko71 0.60 1o81 0.20 oo81 0.20 dk81 0.60 1o81 0.20 oo81 0.20 dk81 0.80 1o81 0.20 dk81 0.80 1o81 0.20 dk81 k2 98 E/R 1.7e-14 0.0e+00 2.5e-15 0.0e+00 1.6e-16 0.0e+00 6.0e-14 0.0e+00 1.7e-14 0.0e+00 2.5e-15 0.0e+00 1.6e-16 0.0e+00 6.0e-14 0.0e+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 1.9E-13 0.0E+00 2.6E-14 0.0E+00 1.7E-15 0.0E+00 6.4E-13 0.0E+00 2.8E-14 0.0E+00 3.9E-15 0.0E+00 2.5E-16 0.0E+00 9.6E-14 0.0E+00 2.8E-14 0.0E+00 3.9E-15 0.0E+00 2.5E-16 0.0E+00 9.6E-14 0.0E+00 2.8E-14 0.0E+00 3.9E-15 0.0E+00 2.5E-16 0.0E+00 9.6E-14 0.0E+00 2.8E-14 0.0E+00 3.9E-15 0.0E+00 2.5E-16 0.0E+00 9.6E-14 0.0E+00 1.7E-13 0.0E+00 2.3E-14 0.0E+00 1.5E-15 0.0E+00 5.7E-13 0.0E+00 1.4E-14 0.0E+00 1.9E-15 0.0E+00 1.2E-16 0.0E+00 4.7E-14 0.0E+00 Source 282 Table C.11 (continued) Peroxy radical cross reactions 2p21 XPOO 2p21 XSOO 2p21 XTOO 2p21 XAOO 2p30 XPOO 2p30 XSOO 2p30 XTOO 2p30 XAOO 2p31 XPOO 2p31 XSOO 2p31 XTOO 2p31 XAOO 2t71 XPOO 2t71 XSOO 2t71 XTOO 2t71 XAOO 2t81 XPOO 2t81 XSOO 2t81 XTOO 2t81 XAOO 2d81 XPOO 2d81 XSOO 2d81 XTOO 2d81 XAOO 2t91 XPOO 2t91 XSOO 2t91 XTOO 2t91 XAOO 2t92 XPOO 2t92 XSOO 2t92 XTOO 2t92 XAOO 2tA1 XPOO 2tA1 XSOO 2tA1 XTOO 2tA1 XAOO 2dA2 XPOO 2dA2 XSOO 2dA2 XTOO 2dA2 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1p21 0.20 po23 0.20 pd21 0.60 1p21 0.20 po23 0.20 pd21 0.80 1p21 0.20 pd21 0.80 1p21 0.20 pd21 0.60 1p30 0.20 po35 0.20 pd33 0.60 1p30 0.20 po35 0.20 pd33 0.80 1p30 0.20 pd33 0.80 1p30 0.20 pd33 0.60 1p31 0.20 po31 0.20 pk33 0.60 1p31 0.20 po31 0.20 pk33 0.80 1p31 0.20 pk33 0.80 1p31 0.20 pk33 0.80 2e72 0.20 et71 0.80 2e72 0.20 et71 2e72 2e72 0.60 1t81 0.20 tk82 0.20 tk81 0.60 1t81 0.20 tk82 0.20 tk81 0.80 1t81 0.20 tk81 0.80 1t81 0.20 tk81 0.60 1d82 0.20 dt82 0.20 dt81 0.60 1d82 0.20 dt82 0.20 dt81 0.80 1d82 0.20 dt81 0.80 1d82 0.20 dt81 0.60 1t91 0.20 tk91 0.20 dt91 0.60 1t91 0.20 tk91 0.20 dt91 0.80 1t91 0.20 dt91 0.80 1t91 0.20 dt91 0.60 1t92 0.20 tk92 0.20 dt92 0.60 1t92 0.20 tk92 0.20 dt92 0.80 1t92 0.20 dt92 0.80 1t92 0.20 dt92 0.80 1tA1 0.20 toA1 0.80 1tA1 0.20 toA1 1tA1 1tA1 0.60 1dA2 0.20 dtA3 0.20 ddA2 0.60 1dA2 0.20 dtA3 0.20 ddA2 0.80 1dA2 0.20 ddA2 0.80 1dA2 0.20 ddA2 k2 98 E/R 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 4.1E-14 0.0E+00 5.9E-15 0.0E+00 3.7E-16 0.0E+00 1.4E-13 0.0E+00 2.3E-14 0.0E+00 3.2E-15 0.0E+00 2.0E-16 0.0E+00 7.9E-14 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 2.0E-15 0.0E+00 2.9E-16 0.0E+00 1.8E-17 0.0E+00 7.0E-15 0.0E+00 2.0E-15 0.0E+00 2.9E-16 0.0E+00 1.8E-17 0.0E+00 7.0E-15 0.0E+00 2.5E-14 0.0E+00 3.5E-15 0.0E+00 2.2E-16 0.0E+00 8.6E-14 0.0E+00 2.5E-14 0.0E+00 3.5E-15 0.0E+00 2.2E-16 0.0E+00 8.6E-14 0.0E+00 1.1E-15 0.0E+00 1.6E-16 0.0E+00 1.0E-17 0.0E+00 3.9E-15 0.0E+00 1.7E-13 0.0E+00 2.3E-14 0.0E+00 1.5E-15 0.0E+00 5.7E-13 0.0E+00 Source 283 Table C.11 (continued) Peroxy radical cross reactions 2r61 XPOO 2r61 XSOO 2r61 XTOO 2r61 XAOO 2r62 XPOO 2r62 XSOO 2r62 XTOO 2r62 XAOO 2r63 XPOO 2r63 XSOO 2r63 XTOO 2r63 XAOO 2r71 XPOO 2r71 XSOO 2r71 XTOO 2r71 XAOO 2r72 XPOO 2r72 XSOO 2r72 XTOO 2r72 XAOO 2r73 XPOO 2r73 XSOO 2r73 XTOO 2r73 XAOO 2r74 XPOO 2r74 XSOO 2r74 XTOO 2r74 XAOO 2r81 XPOO 2r81 XSOO 2r81 XTOO 2r81 XAOO 2r82 XPOO 2r82 XSOO 2r82 XTOO 2r82 XAOO 2s21 XPOO 2s21 XSOO 2s21 XTOO 2s21 XAOO 2r75 XPOO 2r75 XSOO 2r75 XTOO 2r75 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.60 1r63 0.20 ro64 0.20 rk63 0.60 1r63 0.20 ro64 0.20 rk63 0.80 1r63 0.20 rk63 0.80 1r63 0.20 rk63 0.60 1r64 0.20 ro65 0.20 rk62 0.60 1r64 0.20 ro65 0.20 rk62 0.80 1r64 0.20 rk62 0.80 1r64 0.20 rk62 0.80 1r61 0.20 ro61 0.80 1r61 0.20 ro61 1r61 1r61 0.80 1r74 0.20 rv75 0.80 1r74 0.20 rv75 1r74 1r74 0.60 1r71 0.20 ro71 0.20 dr71 0.60 1r71 0.20 ro71 0.20 dr71 0.80 1r71 0.20 dr71 0.80 1r71 0.20 dr71 0.80 1r75 0.20 ro76 0.80 1r75 0.20 ro76 1r75 1r75 0.80 1r76 0.20 ro77 0.80 1r76 0.20 ro77 1r76 1r76 0.80 1r82 0.20 ro83 0.80 1r82 0.20 ro83 1r82 1r82 0.80 1r83 0.20 ro84 0.80 1r83 0.20 ro84 1r83 1r83 0.60 1s21 0.20 so21 0.20 sd21 0.60 1s21 0.20 so21 0.20 sd21 0.80 1s21 0.20 sd21 0.80 1s21 0.20 sd21 0.80 1r77 0.20 rv78 0.80 1r77 0.20 rv78 1r77 1r77 k2 98 E/R 1.5E-14 0.0E+00 2.2E-15 0.0E+00 1.4E-16 0.0E+00 5.3E-14 0.0E+00 1.5E-14 0.0E+00 2.2E-15 0.0E+00 1.4E-16 0.0E+00 5.3E-14 0.0E+00 1.9E-16 0.0E+00 2.7E-17 0.0E+00 1.7E-18 0.0E+00 6.5E-16 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-12 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 4.7E-14 0.0E+00 6.6E-15 0.0E+00 4.2E-16 0.0E+00 1.6E-13 0.0E+00 1.7E-16 0.0E+00 2.4E-17 0.0E+00 1.5E-18 0.0E+00 5.8E-16 0.0E+00 Source 284 Table C.11 (continued) Peroxy radical cross reactions 3021 XPOO 3021 XSOO 3021 XTOO 3021 XAOO 3031 XPOO 3031 XSOO 3031 XTOO 3031 XAOO 3041 XPOO 3041 XSOO 3041 XTOO 3041 XAOO 3042 XPOO 3042 XSOO 3042 XTOO 3042 XAOO 3051 XPOO 3051 XSOO 3051 XTOO 3051 XAOO 3052 XPOO 3052 XSOO 3052 XTOO 3052 XAOO 3053 XPOO 3053 XSOO 3053 XTOO 3053 XAOO 3061 XPOO 3061 XSOO 3061 XTOO 3061 XAOO 3a21 XPOO 3a21 XSOO 3a21 XTOO 3a21 XAOO 3a31 XPOO 3a31 XSOO 3a31 XTOO 3a31 XAOO 3a32 XPOO 3a32 XSOO 3a32 XTOO 3a32 XAOO 3a33 XPOO 3a33 XSOO 3a33 XTOO 3a33 XAOO Reaction 0.80 8021 0.20 a021 ! 0.80 8021 0.20 a021 ! 8021 ! 8021 ! 0.80 8031 0.20 a031 ! 0.80 8031 0.20 a031 ! 8031 ! 8031 ! 0.80 8041 0.20 a041 ! 0.80 8041 0.20 a041 ! 8041 ! 8041 ! 0.80 8042 0.20 a042 ! 0.80 8042 0.20 a042 ! 8042 ! 8042 ! 0.80 8051 0.20 a051 ! 0.80 8051 0.20 a051 ! 8051 ! 8051 ! 0.80 8052 0.20 a052 ! 0.80 8052 0.20 a052 ! 8052 ! 8052 ! 0.80 8053 0.20 a053 ! 0.80 8053 0.20 a053 ! 8053 ! 8053 ! 0.80 8061 0.20 a061 ! 0.80 8061 0.20 a061 ! 8061 ! 8061 ! 0.80 8a21 0.20 aa21 ! 0.80 8a21 0.20 aa21 ! 8a21 ! 8a21 ! 0.80 8a31 0.20 aa31 ! 0.80 8a31 0.20 aa31 ! 8a31 ! 8a31 ! 0.80 8a32 0.20 aa32 ! 0.80 8a32 0.20 aa32 ! 8a32 ! 8a32 ! 0.80 8a33 0.20 aa33 ! 0.80 8a33 0.20 aa33 ! 8a33 ! 8a33 ! k2 98 E/R 4.1E-12 0.0E+00 5.8E-13 0.0E+00 3.7E-14 0.0E+00 1.4E-11 0.0E+00 4.1E-12 0.0E+00 5.8E-13 0.0E+00 3.7E-14 0.0E+00 1.4E-11 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 1.9E-13 0.0E+00 2.6E-14 0.0E+00 1.7E-15 0.0E+00 6.4E-13 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 Source 285 Table C.11 (continued) Peroxy radical cross reactions 3u31 XPOO 3u31 XSOO 3u31 XTOO 3u31 XAOO 3u32 XPOO 3u32 XSOO 3u32 XTOO 3u32 XAOO 3u41 XPOO 3u41 XSOO 3u41 XTOO 3u41 XAOO 3u42 XPOO 3u42 XSOO 3u42 XTOO 3u42 XAOO 3u43 XPOO 3u43 XSOO 3u43 XTOO 3u43 XAOO 3u44 XPOO 3u44 XSOO 3u44 XTOO 3u44 XAOO 3u51 XPOO 3u51 XSOO 3u51 XTOO 3u51 XAOO 3u52 XPOO 3u52 XSOO 3u52 XTOO 3u52 XAOO 3u53 XPOO 3u53 XSOO 3u53 XTOO 3u53 XAOO 3d21 XPOO 3d21 XSOO 3d21 XTOO 3d21 XAOO 3d31 XPOO 3d31 XSOO 3d31 XTOO 3d31 XAOO 3d32 XPOO 3d32 XSOO 3d32 XTOO 3d32 XAOO Reaction 0.80 8u31 0.20 au31 ! 0.80 8u31 0.20 au31 ! 8u31 ! 8u31 ! 0.80 8u32 0.20 au32 ! 0.80 8u32 0.20 au32 ! 8u32 ! 8u32 ! 0.80 8u41 0.20 au41 ! 0.80 8u41 0.20 au41 ! 8u41 ! 8u41 ! 0.80 8u42 0.20 au42 ! 0.80 8u42 0.20 au42 ! 8u42 ! 8u42 ! 0.80 8u43 0.20 au43 ! 0.80 8u43 0.20 au43 ! 8u43 ! 8u43 ! 0.80 8u44 0.20 au44 ! 0.80 8u44 0.20 au44 ! 8u44 ! 8u44 ! 0.80 8u51 0.20 au51 ! 0.80 8u51 0.20 au51 ! 8u51 ! 8u51 ! 0.80 8u52 0.20 au52 ! 0.80 8u52 0.20 au52 ! 8u52 ! 8u52 ! 0.80 8u53 0.20 au53 ! 0.80 8u53 0.20 au53 ! 8u53 ! 8u53 ! 0.80 8d21 0.20 ad21 ! 0.80 8d21 0.20 ad21 ! 8d21 ! 8d21 ! 0.80 8d31 0.20 ad31 ! 0.80 8d31 0.20 ad31 ! 8d31 ! 8d31 ! 0.80 8d32 0.20 ad32 ! 0.80 8d32 0.20 ad32 ! 8d32 ! 8d32 ! k2 98 E/R 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.0E-14 0.0E+00 2.8E-15 0.0E+00 1.8E-16 0.0E+00 6.9E-14 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 Source 286 Table C.11 (continued) Peroxy radical cross reactions 3d33 XPOO 3d33 XSOO 3d33 XTOO 3d33 XAOO 3d41 XPOO 3d41 XSOO 3d41 XTOO 3d41 XAOO 3d42 XPOO 3d42 XSOO 3d42 XTOO 3d42 XAOO 3d43 XPOO 3d43 XSOO 3d43 XTOO 3d43 XAOO 3d44 XPOO 3d44 XSOO 3d44 XTOO 3d44 XAOO 3d45 XPOO 3d45 XSOO 3d45 XTOO 3d45 XAOO 3d46 XPOO 3d46 XSOO 3d46 XTOO 3d46 XAOO 3d47 XPOO 3d47 XSOO 3d47 XTOO 3d47 XAOO 3d48 XPOO 3d48 XSOO 3d48 XTOO 3d48 XAOO 3d51 XPOO 3d51 XSOO 3d51 XTOO 3d51 XAOO 3d52 XPOO 3d52 XSOO 3d52 XTOO 3d52 XAOO Reaction 0.80 8d33 0.20 ad33 ! 0.80 8d33 0.20 ad33 ! 8d33 ! 8d33 ! 0.80 8d41 0.20 ad41 ! 0.80 8d41 0.20 ad41 ! 8d41 ! 8d41 ! 0.80 8d42 0.20 ad42 ! 0.80 8d42 0.20 ad42 ! 8d42 ! 8d42 ! 0.80 8d43 0.20 ad43 ! 0.80 8d43 0.20 ad43 ! 8d43 ! 8d43 ! 0.80 8d44 0.20 ad44 ! 0.80 8d44 0.20 ad44 ! 8d44 ! 8d44 ! 0.80 8d45 0.20 ad45 ! 0.80 8d45 0.20 ad45 ! 8d45 ! 8d45 ! 0.80 8d46 0.20 ad46 ! 0.80 8d46 0.20 ad46 ! 8d46 ! 8d46 ! 0.80 8d47 0.20 ad47 ! 0.80 8d47 0.20 ad47 ! 8d47 ! 8d47 ! 0.80 8d48 0.20 ad48 ! 0.80 8d48 0.20 ad48 ! 8d48 ! 8d48 ! 0.80 8d51 0.20 ad51 ! 0.80 8d51 0.20 ad51 ! 8d51 ! 8d51 ! 0.80 8d52 0.20 ad52 ! 0.80 8d52 0.20 ad52 ! 8d52 ! 8d52 ! k2 98 E/R 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 Source 287 Table C.11 (continued) Peroxy radical cross reactions 3d53 XPOO 3d53 XSOO 3d53 XTOO 3d53 XAOO 3d54 XPOO 3d54 XSOO 3d54 XTOO 3d54 XAOO 3d55 XPOO 3d55 XSOO 3d55 XTOO 3d55 XAOO 3d56 XPOO 3d56 XSOO 3d56 XTOO 3d56 XAOO 3h21 XPOO 3h21 XSOO 3h21 XTOO 3h21 XAOO 3h40 XPOO 3h40 XSOO 3h40 XTOO 3h40 XAOO 3g40 XPOO 3g40 XSOO 3g40 XTOO 3g40 XAOO 3v22 XPOO 3v22 XSOO 3v22 XTOO 3v22 XAOO 3k31 XPOO 3k31 XSOO 3k31 XTOO 3k31 XAOO 3v32 XPOO 3v32 XSOO 3v32 XTOO 3v32 XAOO 3k33 XPOO 3k33 XSOO 3k33 XTOO 3k33 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 8d53 0.20 ad53 0.80 8d53 0.20 ad53 8d53 8d53 0.80 8d54 0.20 ad54 0.80 8d54 0.20 ad54 8d54 8d54 0.80 8d55 0.20 ad55 0.80 8d55 0.20 ad55 8d55 8d55 0.80 8d56 0.20 ad56 0.80 8d56 0.20 ad56 8d56 8d56 0.80 8h21 0.20 ah21 0.80 8h21 0.20 ah21 8h21 8h21 0.80 ko37 0.20 ah42 0.80 HO 0.80 CO2 0.80 ko37 0.20 ah42 0.80 HO 0.80 CO2 ko37 HO CO2 ko37 HO CO2 0.80 gk33 0.20 ag40 0.80 HO 0.80 CO2 0.80 gk33 0.20 ag40 0.80 HO 0.80 CO2 gk33 HO CO2 gk33 HO CO2 0.80 8v21 0.20 av22 0.80 8v21 0.20 av22 8v21 8v21 0.80 8k31 0.20 ak31 0.80 8k31 0.20 ak31 8k31 8k31 0.80 8v32 0.20 av32 0.80 8v32 0.20 av32 8v32 8v32 0.80 8k33 0.20 ak33 0.80 8k33 0.20 ak33 8k33 8k33 k2 98 E/R 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.4e-13 0.0e+00 3.4e-14 0.0e+00 2.2e-15 0.0e+00 8.4e-13 0.0e+00 2.4e-13 0.0e+00 3.4e-14 0.0e+00 2.2e-15 0.0e+00 8.4e-13 0.0e+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 Source 288 Table C.11 (continued) Peroxy radical cross reactions 3k40 XPOO 3k40 XSOO 3k40 XTOO 3k40 XAOO 3v41 XPOO 3v41 XSOO 3v41 XTOO 3v41 XAOO 3v42 XPOO 3v42 XSOO 3v42 XTOO 3v42 XAOO 3v43 XPOO 3v43 XSOO 3v43 XTOO 3v43 XAOO 3v44 XPOO 3v44 XSOO 3v44 XTOO 3v44 XAOO 3k45 XPOO 3k45 XSOO 3k45 XTOO 3k45 XAOO 3k46 XPOO 3k46 XSOO 3k46 XTOO 3k46 XAOO 3k47 XPOO 3k47 XSOO 3k47 XTOO 3k47 XAOO 3k48 XPOO 3k48 XSOO 3k48 XTOO 3k48 XAOO 3k49 XPOO 3k49 XSOO 3k49 XTOO 3k49 XAOO 3k4A XPOO 3k4A XSOO 3k4A XTOO 3k4A XAOO Reaction 0.80 8k40 0.20 ak40 ! 0.80 8k40 0.20 ak40 ! 8k40 ! 8k40 ! 0.80 8v41 0.20 av41 ! 0.80 8v41 0.20 av41 ! 8v41 ! 8v41 ! 0.80 8v42 0.20 av42 ! 0.80 8v42 0.20 av42 ! 8v42 ! 8v42 ! 0.80 8v43 0.20 av43 ! 0.80 8v43 0.20 av43 ! 8v43 ! 8v43 ! 0.80 8v44 0.20 av44 ! 0.80 8v44 0.20 av44 ! 8v44 ! 8v44 ! 0.80 8k45 0.20 ak45 ! 0.80 8k45 0.20 ak45 ! 8k45 ! 8k45 ! 0.80 8k46 0.20 ak46 ! 0.80 8k46 0.20 ak46 ! 8k46 ! 8k46 ! 0.80 8k47 0.20 ak47 ! 0.80 8k47 0.20 ak47 ! 8k47 ! 8k47 ! 0.80 8k48 0.20 ak48 ! 0.80 8k48 0.20 ak48 ! 8k48 ! 8k48 ! 0.80 8k49 0.20 ak49 ! 0.80 8k49 0.20 ak49 ! 8k49 ! 8k49 ! 0.80 8k4A 0.20 ak4A ! 0.80 8k4A 0.20 ak4A ! 8k4A ! 8k4A ! k2 98 E/R 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source 289 Table C.11 (continued) Peroxy radical cross reactions 3k50 XPOO 3k50 XSOO 3k50 XTOO 3k50 XAOO 3k51 XPOO 3k51 XSOO 3k51 XTOO 3k51 XAOO 3k52 XPOO 3k52 XSOO 3k52 XTOO 3k52 XAOO 3k53 XPOO 3k53 XSOO 3k53 XTOO 3k53 XAOO 3v54 XPOO 3v54 XSOO 3v54 XTOO 3v54 XAOO 3k55 XPOO 3k55 XSOO 3k55 XTOO 3k55 XAOO 3v56 XPOO 3v56 XSOO 3v56 XTOO 3v56 XAOO 3k57 XPOO 3k57 XSOO 3k57 XTOO 3k57 XAOO 3k58 XPOO 3k58 XSOO 3k58 XTOO 3k58 XAOO 3k59 XPOO 3k59 XSOO 3k59 XTOO 3k59 XAOO 3k5A XPOO 3k5A XSOO 3k5A XTOO 3k5A XAOO Reaction 0.80 8k50 0.20 ak50 ! 0.80 8k50 0.20 ak50 ! 8k50 ! 8k50 ! 0.80 8k51 0.20 ak51 ! 0.80 8k51 0.20 ak51 ! 8k51 ! 8k51 ! 0.80 8k52 0.20 ak52 ! 0.80 8k52 0.20 ak52 ! 8k52 ! 8k52 ! 0.80 8k53 0.20 ak53 ! 0.80 8k53 0.20 ak53 ! 8k53 ! 8k53 ! 0.80 8v54 0.20 av54 ! 0.80 8v54 0.20 av54 ! 8v54 ! 8v54 ! 0.80 8k55 0.20 ak55 ! 0.80 8k55 0.20 ak55 ! 8k55 ! 8k55 ! 0.80 8v56 0.20 av56 ! 0.80 8v56 0.20 av56 ! 8v56 ! 8v56 ! 0.80 8k57 0.20 ak57 ! 0.80 8k57 0.20 ak57 ! 8k57 ! 8k57 ! 0.80 8k58 0.20 ak58 ! 0.80 8k58 0.20 ak58 ! 8k58 ! 8k58 ! 0.80 8k59 0.20 ak59 ! 0.80 8k59 0.20 ak59 ! 8k59 ! 8k59 ! 0.80 8k5A 0.20 ak5A ! 0.80 8k5A 0.20 ak5A ! 8k5A ! 8k5A ! k2 98 E/R 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 Source 290 Table C.11 (continued) Peroxy radical cross reactions 3k5B XPOO 3k5B XSOO 3k5B XTOO 3k5B XAOO 3k5C XPOO 3k5C XSOO 3k5C XTOO 3k5C XAOO 3l11 XPOO 3l11 XSOO 3l11 XTOO 3l11 XAOO 3n21 XPOO 3n21 XSOO 3n21 XTOO 3n21 XAOO 3n31 XPOO 3n31 XSOO 3n31 XTOO 3n31 XAOO 3n32 XPOO 3n32 XSOO 3n32 XTOO 3n32 XAOO 3n33 XPOO 3n33 XSOO 3n33 XTOO 3n33 XAOO 3n34 XPOO 3n34 XSOO 3n34 XTOO 3n34 XAOO 3n41 XPOO 3n41 XSOO 3n41 XTOO 3n41 XAOO 3n42 XPOO 3n42 XSOO 3n42 XTOO 3n42 XAOO 3n43 XPOO 3n43 XSOO 3n43 XTOO 3n43 XAOO 3n44 XPOO 3n44 XSOO 3n44 XTOO 3n44 XAOO Reaction 0.80 8k5B 0.20 ak5B ! 0.80 8k5B 0.20 ak5B ! 8k5B ! 8k5B ! 0.80 8k5C 0.20 ak5C ! 0.80 8k5C 0.20 ak5C ! 8k5C ! 8k5C ! 0.80 8l11 0.20 la11 ! 0.80 8l11 0.20 la11 ! 8l11 ! 8l11 ! 0.80 8n21 0.20 an21 ! 0.80 8n21 0.20 an21 ! 8n21 ! 8n21 ! 0.80 8n31 0.20 an31 ! 0.80 8n31 0.20 an31 ! 8n31 ! 8n31 ! 0.80 8n32 0.20 an32 ! 0.80 8n32 0.20 an32 ! 8n32 ! 8n32 ! 0.80 8n33 0.20 an33 ! 0.80 8n33 0.20 an33 ! 8n33 ! 8n33 ! 0.80 8n34 0.20 an35 ! 0.80 8n34 0.20 an35 ! 8n34 ! 8n34 ! 0.80 8n41 0.20 an41 ! 0.80 8n41 0.20 an41 ! 8n41 ! 8n41 ! 0.80 8n42 0.20 an42 ! 0.80 8n42 0.20 an42 ! 8n42 ! 8n42 ! 0.80 8n43 0.20 an43 ! 0.80 8n43 0.20 an43 ! 8n43 ! 8n43 ! 0.80 8n44 0.20 an44 ! 0.80 8n44 0.20 an44 ! 8n44 ! 8n44 ! k2 98 E/R 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 4.1E-12 0.0E+00 5.8E-13 0.0E+00 3.7E-14 0.0E+00 1.4E-11 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source 291 Table C.11 (continued) Peroxy radical cross reactions 3n45 XPOO 3n45 XSOO 3n45 XTOO 3n45 XAOO 3n46 XPOO 3n46 XSOO 3n46 XTOO 3n46 XAOO 3n47 XPOO 3n47 XSOO 3n47 XTOO 3n47 XAOO 3n48 XPOO 3n48 XSOO 3n48 XTOO 3n48 XAOO 3n49 XPOO 3n49 XSOO 3n49 XTOO 3n49 XAOO 3n51 XPOO 3n51 XSOO 3n51 XTOO 3n51 XAOO 3n52 XPOO 3n52 XSOO 3n52 XTOO 3n52 XAOO 3n53 XPOO 3n53 XSOO 3n53 XTOO 3n53 XAOO 3n54 XPOO 3n54 XSOO 3n54 XTOO 3n54 XAOO 3n55 XPOO 3n55 XSOO 3n55 XTOO 3n55 XAOO 3v21 XPOO 3v21 XSOO 3v21 XTOO 3v21 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 8n45 0.20 an45 0.80 8n45 0.20 an45 8n45 8n45 0.80 8n46 0.20 an46 0.80 8n46 0.20 an46 8n46 8n46 0.80 8n47 0.20 an47 0.80 8n47 0.20 an47 8n47 8n47 0.80 8n48 0.20 an48 0.80 8n48 0.20 an48 8n48 8n48 0.80 ko37 0.20 an49 0.80 NO2 0.80 CO 0.80 ko37 0.20 an49 0.80 NO2 0.80 CO ko37 NO2 CO2 ko37 NO2 CO2 0.80 8n51 0.20 an51 0.80 8n51 0.20 an51 8n51 8n51 0.80 8n52 0.20 an52 0.80 8n52 0.20 an52 8n52 8n52 0.80 8n53 0.20 an53 0.80 8n53 0.20 an53 8n53 8n53 0.80 8n54 0.20 an54 0.80 8n54 0.20 an54 8n54 8n54 0.80 8n55 0.20 an55 0.80 8n55 0.20 an55 8n55 8n55 0.80 8v22 0.20 av21 0.80 8v22 0.20 av21 8v22 8v22 k2 98 E/R 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 Source 292 Table C.11 (continued) Peroxy radical cross reactions 3o22 XPOO 3o22 XSOO 3o22 XTOO 3o22 XAOO 3o23 XPOO 3o23 XSOO 3o23 XTOO 3o23 XAOO 3o31 XPOO 3o31 XSOO 3o31 XTOO 3o31 XAOO 3o32 XPOO 3o32 XSOO 3o32 XTOO 3o32 XAOO 3o33 XPOO 3o33 XSOO 3o33 XTOO 3o33 XAOO 3o34 XPOO 3o34 XSOO 3o34 XTOO 3o34 XAOO 3o35 XPOO 3o35 XSOO 3o35 XTOO 3o35 XAOO 3o41 XPOO 3o41 XSOO 3o41 XTOO 3o41 XAOO 3o42 XPOO 3o42 XSOO 3o42 XTOO 3o42 XAOO 3o43 XPOO 3o43 XSOO 3o43 XTOO 3o43 XAOO 3o44 XPOO 3o44 XSOO 3o44 XTOO 3o44 XAOO Reaction 0.80 8o22 0.20 ao22 ! 0.80 8o22 0.20 ao22 ! 8o22 ! 8o22 ! 0.80 8o23 0.20 ao23 ! 0.80 8o23 0.20 ao23 ! 8o23 ! 8o23 ! 0.80 8o31 0.20 ao31 ! 0.80 8o31 0.20 ao31 ! 8o31 ! 8o31 ! 0.80 8o32 0.20 ao32 ! 0.80 8o32 0.20 ao32 ! 8o32 ! 8o32 ! 0.80 8o33 0.20 ao33 ! 0.80 8o33 0.20 ao33 ! 8o33 ! 8o33 ! 0.80 8o34 0.20 ao34 ! 0.80 8o34 0.20 ao34 ! 8o34 ! 8o34 ! 0.80 8o35 0.20 ao35 ! 0.80 8o35 0.20 ao35 ! 8o35 ! 8o35 ! 0.80 8o41 0.20 ao41 ! 0.80 8o41 0.20 ao41 ! 8o41 ! 8o41 ! 0.80 8o42 0.20 ao42 ! 0.80 8o42 0.20 ao42 ! 8o42 ! 8o42 ! 0.80 8o43 0.20 ao43 ! 0.80 8o43 0.20 ao43 ! 8o43 ! 8o43 ! 0.80 8o44 0.20 ao44 ! 0.80 8o44 0.20 ao44 ! 8o44 ! 8o44 ! k2 98 E/R 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 3.1E-13 0.0E+00 4.4E-14 0.0E+00 2.8E-15 0.0E+00 1.1E-12 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.8E-13 0.0E+00 3.9E-14 0.0E+00 2.5E-15 0.0E+00 9.6E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 Source 293 Table C.11 (continued) Peroxy radical cross reactions 3o45 XPOO 3o45 XSOO 3o45 XTOO 3o45 XAOO 3o46 XPOO 3o46 XSOO 3o46 XTOO 3o46 XAOO 3o47 XPOO 3o47 XSOO 3o47 XTOO 3o47 XAOO 3o51 XPOO 3o51 XSOO 3o51 XTOO 3o51 XAOO 3o52 XPOO 3o52 XSOO 3o52 XTOO 3o52 XAOO 3o53 XPOO 3o53 XSOO 3o53 XTOO 3o53 XAOO 3o54 XPOO 3o54 XSOO 3o54 XTOO 3o54 XAOO 3o55 XPOO 3o55 XSOO 3o55 XTOO 3o55 XAOO 3o56 XPOO 3o56 XSOO 3o56 XTOO 3o56 XAOO 3o57 XPOO 3o57 XSOO 3o57 XTOO 3o57 XAOO 3o61 XPOO 3o61 XSOO 3o61 XTOO 3o61 XAOO ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 0.80 8o45 0.20 ao45 0.80 8o45 0.20 ao45 8o45 8o45 0.80 8o46 0.20 ao46 0.80 8o46 0.20 ao46 8o46 8o46 0.80 8o47 0.20 ao47 0.80 8o47 0.20 ao47 8o47 8o47 0.80 8o51 0.20 ao51 0.80 8o51 0.20 ao51 8o51 8o51 0.80 8o52 0.20 ao52 0.80 8o52 0.20 ao52 8o52 8o52 0.80 8o53 0.20 ao53 0.80 8o53 0.20 ao53 8o53 8o53 0.80 8o54 0.20 ao54 0.80 8o54 0.20 ao54 8o54 8o54 0.80 8o55 0.20 ao55 0.80 8o55 0.20 ao55 8o55 8o55 0.80 8o56 0.20 ao56 0.80 8o56 0.20 ao56 8o56 8o56 0.80 do49 0.20 ao50 0.80 HO2 0.80 CO2 0.80 do49 0.20 ao50 0.80 HO2 0.80 CO2 do49 HO2 CO2 do49 HO2 CO2 0.80 8o61 0.20 ao61 0.80 8o61 0.20 ao61 8o61 8o61 k2 98 E/R 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.4E-13 0.0E+00 3.4E-14 0.0E+00 2.2E-15 0.0E+00 8.4E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9E-15 0.0E+00 7.3E-13 0.0E+00 2.1E-13 0.0E+00 3.0E-14 0.0E+00 1.9e-15 0.0e+00 7.3E-13 0.0E+00 1.9E-13 0.0E+00 2.6E-14 0.0E+00 1.7E-15 0.0E+00 6.4E-13 0.0E+00 Source 294 Table C.11 (continued) Peroxy radical cross reactions 3t91 XPOO 3t91 XSOO 3t91 XTOO 3t91 XAOO 3tA1 XPOO 3tA1 XSOO 3tA1 XTOO 3tA1 XAOO 3r71 XPOO 3r71 XSOO 3r71 XTOO 3r71 XAOO Reaction 0.80 8t91 0.20 at91 ! 0.80 8t91 0.20 at91 ! 8t91 ! 8t91 ! 0.80 8tA1 0.20 atA1 ! 0.80 8tA1 0.20 atA1 ! 8tA1 ! 8tA1 ! 0.80 8r71 0.20 ar71 ! 0.80 8r71 0.20 ar71 ! 8r71 ! 8r71 ! k2 98 E/R 1.7E-13 0.0E+00 2.3E-14 0.0E+00 1.5E-15 0.0E+00 5.7E-13 0.0E+00 1.7E-13 0.0E+00 2.3E-14 0.0E+00 1.5E-15 0.0E+00 5.7E-13 0.0E+00 1.7E-13 0.0E+00 2.3E-14 0.0E+00 1.5E-15 0.0E+00 5.7E-13 0.0E+00 Source 295 Table C.12 Alkoxy radical reactions. Reaction 1 CH3O O2 ! CH2O HO2 1 CH3O NO ! CH2O HNO 1 CH3O NO2 ! CH2O HNO2 1 CH3O NO2 (M) ! n011 (M) 1 1021 O2 ! d021 HO2 1 1021 NO (M) ! w022 (M) 1 1021 NO2 (M) ! n021 (M) 1 1n35 O2 ! nd38 HO2 1 1n35 ! do35 NO2 1 1n4a O2 ! nk49 HO2 1 1n4a ! do44 NO2 1 1n4a ! d021 2n22 XPOO 1 1n4a ! nd38 2011 1 1n4b O2 ! nd48 HO2 1 1n4b ! ko45 NO2 1 1n4b ! 2n33 CH2O XPOO 1 1n55 ! do52 NO2 1 1n55 ! d021 2n35 XPOO 1 1n56 ! 2021 nd38 1 1n56 ! d031 2n22 XPOO 1 1n56 O2 ! nk53 HO2 1 1k52 ! d021 2k33 XPOO 1 1k52 ! 2011 2k47 XPOO 1 1k52 O2 ! kk52 HO2 1 1k53 ! d021 3031 1 1k53 O2 ! kk53 HO2 1 1k61 ! d021 2k45 XPOO 1 1k61 ! dk5C 2011 1 1k61 O2 ! kk61 HO2 1 1n57 ! d021 2n33 XPOO 1 1n57 ! 2011 nd48 XPOO 1 1n58 ! d031 d021 NO2 1 1n58 ! nd35 2021 XPOO 1 1n59 ! d021 d031 NO2 1 1n59 ! 2n5b 1 1n59 O2 ! nk56 HO2 1 1n5a ! 2n5c 1 1n5a O2 ! nd58 HO2 k2 98 E/R 1.9E-15 9.0E+02 < 8.0E-12 0.0E+00 2.0E-13 1.2E+03 1.5E-11 0.0E+00 1.0E-14 5.5E+02 4.7E-11 0.0E+00 2.7E-11 0.0E+00 8.2E-15 9.5E+02 3.4E+03 5.3E+03 1.2E-15 2.5E+03 3.4E+03 5.3E+03 2.6E+05 6.6E+03 2.0E+04 7.4E+03 8.2E-15 9.5E+02 1.7E+03 5.3E+03 1.7E+03 8.1E+03 1.5E+07 2.6E+03 2.6E+05 6.6E+03 4.3E+05 6.5E+03 4.3E+05 6.5E+03 1.2E-15 2.5E+03 1.1E+05 5.5E+03 1.3E+03 4.1E+03 1.2E-15 2.5E+03 3.3E+05 4.3E+03 1.2E-15 2.5E+03 1.1E+05 5.5E+03 3.2E+03 6.6E+03 1.2E-15 2.5E+05 2.6E+05 6.6E+03 2.0E+04 7.4E+03 1.0E+07 5.5E+03 3.3E+05 6.6E+03 6.8E+06 5.7E+03 1.3E+05 4.9E+03 1.2E-15 2.5E+03 1.5E+07 2.6E+03 8.2E-15 9.5E+02 Source DeMore et al. [1997] DeMore et al. [1997]a DeMore et al. [1997] b [DeMore et al., 1997], See Table C.19 DeMore et al. [1997] DeMore et al. [1997], see Table C.19 DeMore et al. [1997], see Table C.19 c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c a New Reaction b products changed, see text c New reaction, added by Williams [1994a] as a result of new reactions of alkyl nitrates 296 Table C.13 Carbonyls. d CH2O + HO d CH2O + NO3 d CH2O + HO2 d CH2O + O3P d d021 + HO d d021 + NO3 d d021 + O3P d dd21 + NO3 d d031 + HO d d041 + HO d d041 + HO d d042 + HO d d051 + HO d d051 + HO d d052 + HO d d052 + HO d do23 + HO Reaction ! HCO + H2O ! HCO + HNO3 ! 2o11 + XPOO ! HCO + HO ! 3021 + H2O + XAOO ! 3021 + HNO3 + XAOO ! 0d21 + HO ! 0d22 + HNO3 ! 3031 + H2O + XAOO 1 ! 2 ! ! 1 ! 2 ! 1 ! 2 0.38 2d47 + 1.62 3041 + 2.00 H2O 1.62 XAOO + 0.38 XSOO 3042 + H2O + XAOO 0.38 2d58 + 1.62 3051 + 2.00 H2O 1.62 XAOO + 0.38 XSOO 0.56 2d59 + 1.44 3053 + 2.00 H2O k2 98 E/R 1.0E-11 0.0E+00 5.8E-16 2.9E+03 5.0E-14 -6.0E+02 1.6E-13 1.6E+03 1.4E-11 -2.7E+02 2.4E-15 1.9E+03 4.5E-13 1.1E+03 4.5E-15 1.9E+03 2.0E-11 -2.5E+02 1.2E-11 -2.5E+02 1.2E-11 -2.5E+02 2.6E-11 -4.1E+02 1.4E-11 -4.5E+02 Source Madronich and Calvert [1989]a DeMore et al. [1997] b DeMore et al. [1997] Madronich and Calvert [1989]a DeMore et al. [1997] DeMore et al. [1997] Madronich and Calvert [1989]a Stockwell et al. [1997] Atkinson [1994] b Atkinson [1994] c Atkinson [1994]c Atkinson [1994]c Atkinson [1994]c 1.4E-11 -4.5E+02 1.4E-11 -2.6E+02 1.4E-11 -2.6E+02 9.9E-12 -2.6E+02 Atkinson [1994]c Atkinson [1994] b Atkinson [1994]b Atkinson [1994] b;d ! 1.44 XAOO + 0.56 XTOO ! 0.80 3o23 + 0.20 dd21 + + 0.20 HO2 + 0.80 XAOO d dd21 + HO d dk33 + HO k k031 HO k ko37 HO ! 0d22 + H2O 3k33 + H2O + XAOO 2k33 H2O XPOO dk33 HO2 1.1E-11 0.0E+00 1.7E-11 -2.5E+02 2.2E-13 6.9E+02 3.0E-12 0.0E+00 Atkinson [1994] Atkinson [1994]b DeMore et al. [1997] Atkinson [1994] k k041 HO k k041 HO k k051 HO k k052 HO k k062 HO k kk43 + HO ! 0.96 2k44 1.04 2k47 2.00 H2O 5.8E-13 1.8E+02 5.8E-13 1.8E+02 4.9E-12 -7.6E+01 2.0E-12 4.6E+02 9.1E-12 -1.8E+02 2.4E-13 4.0E+02 Atkinson [1994] Atkinson [1994]c Atkinson [1994] e;f Atkinson [1994]e;f;g Atkinson [1994]e;f Atkinson [1994] c;h ! ! ! 1 2 ! ! ! ! ! 0.96 XSOO + 1.04 XPOO 2k52 H2O XSOO 2k53 H2O XSOO 2k61 H2O 2k43 + H2O + XPOO a Recommended by DeMore et al. [1997] b No E/R value reported, use Madronich and Calvert [1989] c E/R calculated from D+nT, not reported as an Arrhenius equation d Branching ratio changed, used that recommended by Atkinson et al. [1992b] e Reaction added by Williams [1994a] f No E/R value reported, use E/R generated by Williams [1994a] g Product changed to 2k53 from 2k52 h New reaction 297 Table C.14 Oxygenated Organic Updates. Reaction o o011 + HO o o021 + HO o o031 + HO o o032 + HO o o042 HO o o042 HO o o043 HO o o011 + NO3 o o021 + NO3 o o031 + NO3 a a011 HO a a021 HO a a031 HO ! 0.14 0o11 + 0.86 CH3O + H2O ! d021 + H2O + HO2 ! 0.23 2o32 + 0.77 d031 + 0.77 HO2 + 0.23 XSOO ! k031 + HO2 1 2 > 0.03 2o42 0.39 2o4c 0.58 d041 0.58 HO2 ! 0.39 XSOO 0.03 XPOO 2o45 XPOO 0.14 0o11 0.86 CH3O HNO3 d021 HNO3 HO2 ! 0.23 2o32 0.77 d031 0.77 HO2 0.23 XSOO ! CO2 H2O H 2a21 H2O XPOO 2a31 H2O XSOO ! ! ! k2 98 E/R 8.9E-13 6.0E+02 3.2E-12 2.4E+02 5.5E-12 0.0E+00 5.3E-12 -3.5E+01 4.3E-12 0.0E+00 4.3E-12 0.0E+00 1.1E-12 2.7E+02 <6.0E-16 0.0E+00 <9.0E-16 0.0E+00 <2.3E-15 0.0E+00 4.0E-13 0.0E+00 8.0E-13 -2.0E+02 1.2E-12 0.0E+00 a E/R calculated from D+nT, not reported as an Arrhenius expression b New Reaction c branching ratio calculated using Atkinson et al. [1987] Source DeMore et al. [1997] DeMore et al. [1997] Atkinson [1994] Atkinson [1994]a Atkinson [1994]b;c Atkinson [1994]b;c Atkinson [1994]a;b Atkinson [1994]b Atkinson [1994]b Atkinson [1994]b DeMore et al. [1997] DeMore et al. [1997] Atkinson [1994] 298 Table C.15 Hydroperoxide Reactions. h h011 HO h h011 HO h h031 HO h h043 HO h hn35 HO h hn35 HO h hn49 HO h hn49 HO h hn4a HO h hn4a HO h hn5a HO h hn5a HO h hn5b HO h hn5b HO h hn5c HO h hn5c HO h hn5d HO h hn5d HO h hn5e HO h hn5e HO h hn5f HO h hn5f HO h hk53 HO h hk53 HO h hk54 HO h hk54 HO h hk61 HO h hk61 HO Reaction k2 98 E/R ! A B ! 2011 H2O 5.2e-12 -2.0E+02 CH2O HO H2O ! 0.50 2031 0.50 k031 0.50 HO 0.50 XSOO ! 2043 H2O XTOO nd38 HO 2n35 XPOO nk49 HO 2n4a XSOO nd48 HO 2n4b XPOO nk52 HO 2n55 XSOO nk53 HO 2n56 XSOO nk54 HO 2n57 XSOO nk55 HO 2n58 XSOO nk56 HO 2n59 XSOO nd58 HO 2n5a XPOO 2k52 H2O XSOO kk52 HO 2k53 H2O XSOO kk53 HO 2k61 H2O XSOO kk61 HO 2.2e-12 -2.0E+02 1.0E-11 0.0E+00 3.0E-12 0.0E+00 5.0E-12 2.9E+02 3.9E-12 2.2E+02 5.0E-12 2.9E+02 3.9E-12 2.2E+02 5.0E-12 2.9E+02 3.9E-12 2.2E+02 1.1E-11 -1.9E+02 3.8E-12 2.2E+02 1.4E-11 -2.7E+02 3.8E-12 2.2E+02 1.1E-11 -1.9E+02 3.9E-12 2.2E+02 2.3E-12 2.7E+03 3.9E-12 2.2E+02 1.9E-12 3.5E+02 4.1E-12 2.2E+02 5.1E-12 2.9E+02 4.0E-12 2.2E+02 3.8E-12 2.2E+02 3.6E-11 -5.5E+02 3.9E-12 2.2E+02 6.5E-12 -3.3E+01 3.9E-12 2.2E+02 3.7E-11 -5.5E+02 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! a Branching ratio and products from Madronich and Calvert [1989] b product changed from 2032 to 2031 by Williams [1994a] c k and E/R set equal to hn4a values d New Reaction, see text Source DeMore et al. [1997] a same as reaction above Madronich and Calvert [1989] b Atkinson [1994] added by Williams [1994a] added by Williams [1994a] c added by Williams [1994a] c;d added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] added by Williams [1994a] 299 Table C.16 Alkyl Nitrate Updates. n n011 + HO n n021 + HO n n021 + HO n n031 HO n n031 HO n n031 HO n n032 + HO n n032 + HO n n041 + HO n n041 + HO n n042 HO n n042 HO n n042 HO n n053 HO n n053 HO n n053 HO n n054 HO n n054 HO n n054 HO n n055 HO n n055 HO n n055 HO Reaction ! CH2O+ NO2+ H2O ! 2n22+ XPOO ! d021+ NO2 ! 2n35 XPOO ! 2n32 XSOO ! d031 NO2 ! 2n33+ XPOO ! k031+ NO2 ! 2n4a+ XSOO ! d041+ NO2 ! 2n4b XPOO ! 2n45 XSOO ! k041 NO2 ! 2n55 XSOO ! 2n56 XSOO ! d051 NO2 ! 2n57 XSOO ! k051 NO2 ! 2n58 XSOO ! 2n59 XSOO ! 2n5a XPOO ! k052 NO2 k2 98 E/R 2.4E-14 8.9E+02 4.0E-14 4.5E+02 1.4E-13 4.5E+02 8.1E-14 8.2E+02 3.7E-13 8.3E+02 2.8E-13 9.7E+02 3.5E-14 3.1E+02 2.6E-13 3.1E+02 1.5E-12 2.9E+02 2.1E-13 9.7E+02 2.0E-13 8.2E+02 2.3E-13 8.3E+02 4.9E-13 5.0E+02 8.1E-13 2.9E+02 1.0E-12 2.1E+02 1.3E-13 2.5E+02 1.2E-12 2.9E+02 2.7E-13 5.0E+02 2.6E-13 7.5E+02 3.3E-13 8.3E+02 2.4E-13 8.2E+02 5.5E-13 4.2E+02 Source DeMore et al. [1997] DeMore et al. [1997]a;b DeMore et al. [1997]a;b Atkinson [1994]b;c Atkinson [1994]b;c Atkinson [1994]b;c Talukdar et al. [1997]a;b Talukdar et al. [1997]a;b Atkinson [1994]a;b;c Atkinson [1994]a;b;c;d Atkinson [1994]a;b;c Atkinson [1994]a;b;c Atkinson [1994]a;b;c Atkinson [1994]a;b;c Atkinson [1994]a;b;c Atkinson [1994]b;e;f Atkinson and Aschmann [1989]a;b Atkinson and Aschmann [1989]a;b Atkinson and Aschmann [1989]a;b Atkinson [1994]a;b;c Atkinson [1994]a;b;c Atkinson [1994]a;b;c a Reaction added by Williams [1994a] b Branching ratio calculated using estimation technique of Atkinson and Aschmann [1989] c No E/R reported, used E/R values generated by Williams [1994a] d Product changed from do41 to d041 e New Reaction f E/R set equal to average of E/R in other 2 channels added by Williams [1994a] 300 Table C.17 Peroxy Acyl Nitrate Updates. p p021 + HO 3 3021 NO2 (M) p p021 (M) p pv22 p pd21 p pg21 p pn21 p pv21 p po23 p po22 p pn31 p pd31 p pn32 p pu31 p pv32 p pd33 p pk33 p pd32 p pk31 p pu32 p pn34 p po31 p po35 p po32 p po33 p po34 p pu41 p pu43 p pd41 p pv41 p pv42 p pu42 p pd46 p pd47 p pd43 p pd44 p pn42 p pn41 p pn44 p pn43 p pn40 p pv43 p pd42 p pn49 p pv44 p pd48 Reaction ! 2p21 + H2O + XPOO ! p021 -1.00 XAOO (M) ! 3021 NO2 XAOO (M) ! 3v22 + NO2 + XAOO ! 3d21+ NO2+ XAOO ! 3a21+ NO2+ XAOO ! 3n21+ NO2+ XAOO ! 3v21+ NO2+ XAOO ! 3o23+ NO2+ XAOO ! 3o22+ NO2+ XAOO ! 3n31+ NO2+ XAOO ! 3d31+ NO2+ XAOO ! 3n32+ NO2+ XAOO ! 3u31+ NO2+ XAOO ! 3v32+ NO2+ XAOO ! 3d33+ NO2+ XAOO ! 3k33+ NO2+ XAOO ! 3d32+ NO2+ XAOO ! 3k31+ NO2+ XAOO ! 3u32+ NO2+ XAOO ! 3n34+ NO2+ XAOO ! 3o31+ NO2+ XAOO ! 3o35+ NO2+ XAOO ! 3o32+ NO2+ XAOO ! 3o33+ NO2+ XAOO ! 3o34+ NO2+ XAOO ! 3u41+ NO2+ XAOO ! 3u44+ NO2+ XAOO ! 3d41+ NO2+ XAOO ! 3v41+ NO2+ XAOO ! 3v42+ NO2+ XAOO ! 3u42+ NO2+ XAOO ! 3d46+ NO2+ XAOO ! 3d47+ NO2+ XAOO ! 3d43+ NO2+ XAOO ! 3d44+ NO2+ XAOO ! 3n42+ NO2+ XAOO ! 3n41+ NO2+ XAOO ! 3n44+ NO2+ XAOO ! 3n43+ NO2+ XAOO ! 3n49+ NO2+ XAOO ! 3v43+ NO2+ XAOO ! 3d42+ NO2+ XAOO ! 3n45+ NO2+ XAOO ! 3v44+ NO2+ XAOO ! 3d48+ NO2+ XAOO k2 98 E/R <4.0E-14 0.0E+00 8.6E-12 0.0E+00 4.6E-04 0.0E+00 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 Source DeMore et al. [1997] DeMore et al. [1997], See Table C.19 DeMore et al. [1997], See Table C.19 Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] 301 Table C.17 (continued) Peroxy Acyl Nitrate Updates p pk49 p pk40 p pk45 p pk47 p pk48 p pd45 p pk46 p pk4A p pn47 p pn48 p p041 p p042 p po41 p po42 p po43 p po45 p po47 p po44 p po46 p ph40 p pg40 p pd51 p pd52 p pu51 p pv53 p pu52 p pu53 p pk59 p pk51 p pk54 p pd53 p pd54 p pk52 p pk55 p pn51 p pn53 p pn52 p pn54 p pv56 p pn55 p pd55 p pd56 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 3k49+ NO2+ XAOO 3k40+ NO2+ XAOO 3k45+ NO2+ XAOO 3k47+ NO2+ XAOO 3k48+ NO2+ XAOO 3d45+ NO2+ XAOO 3k46+ NO2+ XAOO 3k4A+ NO2+ XAOO 3n47+ NO2+ XAOO 3n48+ NO2+ XAOO 3042+ NO2+ XAOO 3041+ NO2+ XAOO 3o42+ NO2+ XAOO 3o41+ NO2+ XAOO 3o43+ NO2+ XAOO 3o45+ NO2+ XAOO 3o47+ NO2+ XAOO 3o44+ NO2+ XAOO 3o46+ NO2+ XAOO 3h40+ NO2+ XAOO 3g40+ NO2+ XAOO 3d51+ NO2+ XAOO 3d52+ NO2+ XAOO 3u51+ NO2+ XAOO 3v54+ NO2+ XAOO 3u53+ NO2+ XAOO 3u52+ NO2+ XAOO 3k59+ NO2+ XAOO 3k51+ NO2+ XAOO 3k55+ NO2+ XAOO 3d53+ NO2+ XAOO 3d54+ NO2+ XAOO 3k52+ NO2+ XAOO 3k53+ NO2+ XAOO 3n51+ NO2+ XAOO 3n53+ NO2+ XAOO 3n52+ NO2+ XAOO 3n54+ NO2+ XAOO 3v56+ NO2+ XAOO 3n55+ NO2+ XAOO 3d55+ NO2+ XAOO 3d56+ NO2+ XAOO k2 98 E/R 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 Source Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] 302 Table C.17 (continued) Peroxy Acyl Nitrate Updates p pk5A p pk5C p pk50 p pk57 p pk58 p p051 p p052 p p053 p po50 p po51 p po52 p po53 p po54 p po56 p po55 p p061 p po61 p pt91 p ptA1 p p031 p pu44 p pr71 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Reaction 3k5A+ NO2+ XAOO 3k5C+ NO2+ XAOO 3k50+ NO2+ XAOO 3k57+ NO2+ XAOO 3k58+ NO2+ XAOO 3051+ NO2+ XAOO 3052+ NO2+ XAOO 3053+ NO2+ XAOO 3o57+ NO2+ XAOO 3o51+ NO2+ XAOO 3o52+ NO2+ XAOO 3o53+ NO2+ XAOO 3o54+ NO2+ XAOO 3o56+ NO2+ XAOO 3o55+ NO2+ XAOO 3061+ NO2+ XAOO 3o61+ NO2+ XAOO 3t91+ NO2+ XAOO 3tA1+ NO2+ XAOO 3031+ NO2+ XAOO 3u43+ NO2+ XAOO 3r71+ NO2+ XAOO a Average of reported values k2 98 E/R 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 6.1E-04 1.4E+04 4.7E-04 1.3E+04 3.5E-04 1.3E+04 1.6E-04 1.3E+04 Source Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] Atkinson [1994] a Atkinson [1994] Madronich and Calvert [1989] 303 Table C.18 Revised Aromatic Reactions. Reaction C6 H6 + HO ! 0.21 C6 H5 (H)OH(OO) + 0.79 C6 H5 (OH) + 0.79 HO2 C6 H6 + NO3 ! C6 H5(OO) + HNO3 A C6 H5 (OH) + HO ! C6 H5 (O) + H2 O B C6 H5 (OH) + HO ! C6 H5 (OH)(OH) C6 H5 (OH) + NO3 ! C6 H5 (O) + HNO3 C6 H4 OH,NO2 + HO ! C6 H4(O),NO2 + H2 O C6 H4 OH,NO2 + NO3 ! C6 H4 (O),NO2 + HNO3 New K298 1.2E-12 <3.0E-17 New E/R 2.1E+02 0.0E+00 2.1E-12 4.0E+02 Atkinson [1994] b 2.4E-11 3.8E-12 2.3E-11 <2.0E-14 4.0E+02 0.0E+00 0.0E+00 0.0E+00 Atkinson [1994] Atkinson [1994] Grosjean [1991]b Atkinson [1994] a New Reaction b Branching ratio from Madronich and Calvert [1989] retained Sources Atkinson [1994] Atkinson [1994] a 304 Table C.19 Troe Reaction Updates. Reaction i H + O2 + (M) ! HO2 + (M) i HO HO (M) ! H2O2 (M) i HO NO (M) ! HNO2 (M) i HO NO2 (M) ! HNO3 (M) i NO O3P (M) ! NO2 (M) i NO2 O3P (M) ! NO3 (M) i NO3 NO2 (M) ! N2O5 (M) u C2H2 HO (M) ! dd21 HO (M) u C2H4 + HO + (M) ! 0o21 (M) 0 CH3 O2 (M) ! 2011 (M) 0 C2H5 O2 (M) ! 2021 XPOO (M) 1 CH3O NO (M) ! w012 (M) 1 CH3O NO2 (M) ! n011 (M) 1 1021 NO (M) ! w022 (M) 1 1021 NO2 (M) ! n021 (M) 2 2011 NO2 (M) ! n012 (M) 3 3021 NO2 (M) ! p021 -1.00 XAOO (M) p p021 (M) ! 3021 NO2 XAOO (M) n n012 (M) ! 2011 NO2 (M) k298, E/R a Reference Troe Parameters b 1.2E-12 -1.0E+03 Madronich and Calvert [1989]c 5.7e-32 1.6 7.5e-11 0.0 0.6 1. 0. 5.9E-12 -6.2E+02 DeMore et al. [1997]d 6.2e-31 1.0 2.6e-11 0.0 0.6 1. 0. [DeMore et al., 1997]d 7.3E-12 -1.0E+03 7.0e-31 2.6 3.6e-11 0.1 0.6 1. 0. [DeMore et al., 1997]d 8.5E-12 -1.4E+03 2.5e-30 4.4 1.6e-11 1.7 0.6 1. 0. [Madronich and Calvert, 1989]c 1.6E-12 -8.6E+02 9.0e-32 1.5 3.0e-11 0.0 0.6 1. 0. [Madronich and Calvert, 1989]c 1.6E-12 -1.1E+03 9.0e-32 2.0 2.2e-11 0.0 0.6 1. 0. [DeMore et al., 1997]d;e 1.3E-12 -5.6E+02 2.2e-30 3.9 1.5e-12 0.7 0.6 1. 0. 7.5E-13 1.3E+03 Madronich and Calvert [1989]c;e 5.5E-30 0.0 8.3E-13 -2. 0.6 1. 0. 8.2E-12 -1.2E+01 DeMore et al. [1997]d 1.0E-28 0.8 8.8E-12 0.0 0.6 1. 0. 1.1E-12 -1.2E+03 DeMore et al. [1997]d 4.5E-31 3.0 1.8E-12 1.7 0.6 1. 0. 7.5E-12 -1.2E+03 DeMore et al. [1997]d;e 1.5E-28 3.0 8.0E-12 0.0 0.6 1. 0. [DeMore et al., 1997]e;f 2.5E-11 0.0E+00 1.4e-29 3.8 3.6e-11 0.6 0.6 1.0 0. [DeMore et al., 1997]e 1.5E-11 0.0E+00 1.1e-28 4.0 1.6e-11 1.0 0.6 1. 0. [DeMore et al., 1997]e 4.7E-11 0.0E+00 2.8e-27 4.0 5.0e-11 1.0 0.6 1.0 0. [DeMore et al., 1997]e;f 2.7E-11 0.0E+00 2.0e-27 4.0 2.8e-11 1.0 0.6 1. 0. 4.0E-12 -1.8E+03 Madronich and Calvert [1989]c 1.5E-30 4.0 6.5E-12 2.0 0.6 1. 0. 8.6E-12 0.0E+00 DeMore et al. [1997]e 9.7e-29 5.6 9.3e-12 1.5 0.6 1.0 0. 4.6E-04 0.0E+00 DeMore et al. [1997]e 9.7e-29 5.6 9.3e-12 1.5 0.6 2.3e-08 1.4e+04 1.5E+00 9.4E+03 Madronich and Calvert [1989]c 1.5e-30 4.0 6.5e-12 2.0 0.6 2.7e-12 1.1e+04 a these values not actually used b AK0300, AN, AKI300, AM, BAS, AEQUIL, TEQUIL. Where AK0300 = zero pressure 300 K rate constant (third order); AN = temperature exponent for zero pressure rate constant; AKI300 = high pressure 300 K rate constant (second order); AM = temperature exponent for high pressure rate constant; BAS = base of exponentiation (0.6 for most); AEQUIL = pre-exponential of equilibrium constant; TEQUIL = activation temperature of equilibrium constant c Recommended by DeMore et al. [1997] d E/R from Madronich and Calvert [1989] e No E/R value reported f New reaction