J. Mex. Chem. Soc. 2005, 49, 359-362 Journal of the Mexican Chemical Society Volume Index 49, 2005 Characterization of Conducting Polyaniline Blends by Resonance Raman Spectroscopy José E. Pereira da Silva, Márcia L.A. Temperini and Susana I. Córdoba de Torres 84-89 10-13 Electrochemical Performance of Dispersed Pt-M (M =V, Cr and Co) Nanoparticles for the Oxygen Reduction Electrocatalysis Fabio H. B. Lima, M. Janete Giz and Edson A. Ticianelli 90-98 14-19 Bonding Interactions of Metal Clusters [Mn (M= Cu, Ag, Au; n=1-4)] with Ammonia. Are the Metal Clusters Adequate as a Model of Surfaces? Ana Martínez 99-106 Article Tropospheric Ozone Prediction in Mexico City Margarita Garfias Vázquez, Javier Audry Sánchez,* and Francisco Javier Garfias y Ayala Celite Catalysed Alkylation of Alkenes Irma Rojas-Oviedo,* Jorge Cárdenas, Carmen Márquez and Lance J. Twyman Optimum Temperature in the Electrostatic Desalting of Maya Crude Oil Erik Fetter Pruneda, Enrique Rivero Borrell Escobedo y Francisco Javier Garfias Vázquez* 2-9 An Investigation of the Dispersion Forces in Weakly Bound Complexes Using Quantum Chemical and Multipole Expansion Methods Wagner B. De Almeida 107-123 Highly Efficient Inversion of the C-3 Configuration in 1,2-O-Isopropylidenefuranose Derivatives by an Adapted Swern Oxidation/Sodium Borohydride Reduction Protocol in One Pot Silvano Cruz-Gregorio, Luis Hernández, Mónica Vargas, Leticia Quintero,* and Fernando Sartillo-Piscil.* 20-23 o-Hydroxylaminobenzaldehydes and the N-Acylated Derivatives Thereof Joseph M. Muchowski* and Michael L. Maddox 24-31 On-line Solid-Phase Extraction-Liquid Chromatographic Method for the Determination of Carbofuran and 7-Phenolcarbofuran in Cervical-Uterine Epithelial Tissue Luz E. Vera-Avila,* Diana Macías-Mendoza, Rosario Covarrubias-Herrera, and José G. Velázquez-Ramírez 32-38 The Role of Intramolecular Hydrogen Bonding in the Electrochemical Behavior of Hydroxy-Quinones and in Semiquinone Stability Carlos Frontana and Ignacio González Analysis of Trace Metals Cu2+, Pb2+ and Zn2+ in Coastal Marine Water Samples from Florianópolis, Santa Catarina State, Brazil Lígia C. Mello, Alessandro Claudino, Ivanise Rizzatti, Rodolfo L. Bortoluzzi and Dilson R. Zanette 61-69 70-77 Electrochemical and Atomic Force Microscopy Investigations of New Materials from N-Trifluoromethanesulfonyl1-azahexa-1,3,5-trienes Derivatives Margarita Rivera, Cecilio Alvarez-Toledano, Abel Moreno, José D. Sepúlveda-Sánchez, Tomás Hernández-Pérez and María E. Sánchez-Vergara 78-83 Electronic Effects on the Reactivity of Cross-Conjugated Carbonyl Systems with Fe2(CO)9 María C. Ortega-Alfaro, José G. López-Cortés, Rubén A. Toscano and Cecilio Álvarez-Toledano 124-133 Clay and Refractory Materials Slurries in Inductively Coupled Plasma Optical Emission Spectrometry: Effects of Mechanochemical Synthesis on Emission Intensities of Analytes Mirian C. Santos, Ana Rita A. Nogueira and Joaquim A. Nóbrega 134-142 A Convenient Procedure for the Synthesis of 3β-Hydroxy6-oxo-5α-steroids. Application to the Synthesis of Laxogenin Martín A. Iglesias-Arteaga, Eva M. Símuta-Lopez, Sergio Xochihua-Moreno, Omar Viñas-Bravo, Sara Montiel Smith, Socorro Meza Reyes and Jesús Sandoval-Ramírez 143-147 An Alternative Approach to Aminodiols from BaylisHillman Adducts. Stereoselective Synthesis of Chloramphenicol, Fluoramphenicol and Thiamphenicol Cristiano R. Mateus and Fernando Coelho 148-158 Synthesis of 2,4-Disubstituted Thiophenols and Solid State Structures of Thiocarbamate Precursors Aarón Flores-Figueroa, Víctor Arista-M., Daniel Talancón-Sánchez and Ivan Castillo 159-165 360 J. Mex. Chem. Soc. 2005, 49(4) Amino Acid Sequence Determination and Chemical Synthesis of CllErg1 (γ-KTx1.5), a K+ Channel Blocker Peptide Isolated from the Scorpion Centruroides limpidus limpidus Fredy I. Coronas, Cipriano Balderas, Liliana PardoLópez, Lourival D. Possani and Georgina B. Gurrola Solid-Phase Organic Synthesis of Sensing Sorbent Materials for Copper and Lead Recovery M. Castillo, G. Pina-Luis, M. E. Díaz-García and I. A. Rivero Volume Index New Pyrone and Quinoline Alkaloid from Almeidea rubra and their Trypanocidal Activity Alessandra R. P. Ambrozin, Jair Mafezoli, Paulo C. Vieira, João B. Fernandes, M. Fátima das G., F. da Silva, Javier A. Ellena and Sérgio de Albuquerque The Solid-State and Solution-State Reassigned Structures of Tagitinin A, a 3,10-Epoxy-Germacrolide from Tithonia diversifolia, and the Interconversion of 3,10-EpoxyGermacrolide Conformational Families via a Ring-Atom Flip Mechanism Robert Glaser, Abraham García, María Isabel Chávez and Guillermo Delgado Dimeric Boronates Derived from the Reaction of Schiff Bases and Boronic Acids Victor Barba, Rosa Santillan and Norberto Farfán 1-Acetylvinyl Acrylates: New Captodative Olefins Bearing an Internal Probe for the Evaluation of the Relative Reactivity of Captodative against Electron-Deficient Double Bonds in Diels-Alder and Friedel-Crafts Reactions Rafael Herrera, Hugo A. Jiménez-Vázquez, Francisco Delgado, Björn C., G. Söderberg and Joaquín Tamariz Experimental and Theoretical Study of the Products from the Spontaneous Dimerization of DLand D-Glyceraldehyde Federico García-Jiménez, Ofelia Collera Zúñiga, Yolanda Castells García, Julio Cárdenas and Gabriel Cuevas 263-270 Effect of Support Acidity on n-heptane Reforming over Pt/Beta zeolite+gAlumina Catalysts Sergio Ramírez, Persi Schacht, Jorge Ancheyta 271-278 Mass Transfer Measurements in a Parallel Disk Cell Using the Limiting Current Technique Marco Antonio Quiroz, Uriel Alejandro Martínez-Huitle and Carlos Alberto Martínez-Huitle*, 279-283 Chemical Constituents of Senecio procumbens Amira Arciniegas,a Ana L. Pérez-Castorena,* José Luis Villaseñor, Alfonso Romo de Vivara 284-286 Adsorption of Phenol and Dichlorophenols from Aqueous Solutions by Porous Clay Heterostructure (PCH) Sofía Arellano-Cárdenas, Tzayhrí Gallardo-Velázquez,* Guillermo Osorio-Revilla, Ma. del Socorro López-Cortéz and Brenda Gómez-Perea 287-291 Exploring the Liquefied Petroleum Gas - Ozone Relation in Guadalajara, Mexico, by Smog Chamber Experiments José Luis Jaimes-López,* Julio Sandoval-Fernández and Angel Zambrano-García 292-297 Economics on the Use of Oxygenates Luis Díaz-Gutiérrez, Nicolás Rodríguez-Martínez, Francisco Javier Garfias-Vásquez and Francisco Javier Garfias-Ayala* 298-301 Eco-friendly Conditions for the Production of 1,3-Dithianes Using Microwave Irradiation Lidia Ballesteros, Olivia Noguez, Gabriel Arroyo, Benjamín Velasco, Francisco Delgado, and René Miranda* 302-306 Microwave-assisted Synthesis, Crystal and Molecular Structure, and DFT Study of 1-(2-aminoethyl)-2-imidazolidinethione Herbert Höpfl, Badhin Gómez, and Rafael Martínez-Palou* 307-311 Preparation of Phosphostatine Analogues From l-amino acids Ricardo de la Cruz-Cordero, Victoria Labastida-Galván, Mario Fernández-Zertuche, and Mario Ordóñez* 312-321 Ozone Trend Analysis at Pedregal Station in the Metropolitan Area of Mexico City Margarita Garfias Vázquez, Javier Audry Sánchez, and Francisco Javier Garfias y Ayala* 322-323 166-173 174-179 Supramolecular Conformational Effects in the Electrocatalytic Properties of Electrostatic Assembled Films of Meso(3- and 4-Pyridyl) Isomers of Tetraruthenated Porphyrins Ildemar Mayer, Marcos N. Eberlin, Daniela M. Tomazela, Henrique E. Toma and Koiti Araki 180-187 Interaction Parameter (χ); Expansion Factor (ε); Steric Hindrance Factor (σ); and Shielding Function F(ξ); for the System PEA–Organic Solvents by Intrinsic Viscosity Measurements Martha L. Cecopieri-Gómez and Joaquín Palacios-Alquisira Determination of PCBs in Transformers Oil Using Gas Chromatography with Mass Spectroscopy and Aroclors (A1254:A1260) Héctor Alfredo Robles Martínez,* Germán Cuevas Rodríguez, Daniel Hernández Castillo 188-195 196-201 202-210 211-217 218-228 229-238 Volume Index Synthesis of Tramadol and Analogous Cuauhtémoc Alvarado,* Ángel Guzmán*, Eduardo Díaz, and Rocío Patiño 361 324-327 Kinetic Aspects of Soai´s Asymmetric Autocatalysis Thomas Buhse* 328-335 Electromicrogravimmetric Study of the Effect of Cl– Anions on Thallium Underpotential Deposition Onto Gold Antonio Montes-Rojas*, and Eric Chainet 336-343 Ab Initio Study and Hydrogen Bonding Calculations of Nitrogen and Carbon Chemical Shifts in Serine-Water Complexes Majid Monajjemi*, Fatemeh Mollaamin, and Tahereh Karimkeshteh Studies on the Selective S-oxidation of Albendazole, Fenbendazole, Triclabendazole, and Other Benzimidazole Sulfides Olivia Soria-Arteche,* Rafael Castillo, Alicia Hernández-Campos, Marcela Hurtado-de la Peña, Gabriel Navarrete-Vázquez, José Luis Medina-Franco, Kathia Gómez-Flores 344-352 244-251 A Mild and Efficient Method for the Chemoselective Synthesis of Acylals from Aromatic Aldehydes and their Deprotections Catalyzed by Sulfated Zirconia Guillermo E. Negrón, Laura N. Palacios, Deyanira Angeles, Leticia Lomas and Rubén Gaviño 252-256 A Concise Total Synthesis of (R)-Fluoxetine, a Potent and Selective Serotonin Reuptake Inhibitor Ângelo de Fátima, Alexandre Augusto M. Lapis and Ronaldo A. Pilli* 257-261 Review Advances in Crystal Growth Techniques of Biological Macromolecules Nurit Mirkin and Abel Moreno* 39-52 Editorial 353-358 Short Report Synthesis of 2,4-Disubstituted Thiazole Combinatorial Uniton Solid-Phase: Microwave Assisted Conversion of Alcohol to Amine Monitored by FT-IR Dyeison Antonow, S. Graciela Mahler, Gloria L. Serra, Eduardo Manta and Vera Lucia Eifler-Lima Short Synthesis of a New Cyclopentene-1,3-dione Derivative Isolated from Piper carniconnectivum Luiz C. Dias, Simone B. Shimokomaki and Robson T. Shiota 239-243 Guillermo Delgado Guillermo Delgado e Roberto M. Torresi 1 55