Republic of the Philippines BICOL UNIVERSITY Legazpi City COLLEGE OF SCIENCE Department of Chemistry COURSE INFORMATION I. Course Code: Course Title: Prerequisite: Term: School Year: Instructor: Website: E-mail: CHEM 33 Organic Analysis (Lecture and Laboratory) CHEM 33 1st Semester 2009-2010 MICHAEL V. MONTEALEGRE buchem.weebly.com mvmnt2@yahoo.com II. Course Description: Organic Analysis covers spectroscopic techniques used commonly in the structure elucidation of organic compounds. Spectroscopic methods include Mass Spectrometry, Infrared spectroscopy, UV/Vis spectroscopy, and 1H and 13C NMR Spectroscopy. The course also includes the qualitative organic analysis. Accompanying lab course complements the lecture with exercises given the spectra of simple organic compounds. III. IV. Course Duration: 3A Schedule 3B Credit Units: V. Placement Lecture 54 hours Tuesday, Thursday 9:00-10:30 AM Tuesday, Thursday 1:00-2:30 PM 3 units Lecture Laboratory 108 hours Friday 7AM-1PM Friday 1PM-7PM 2 units Laboratory BS Chemistry VI. COURSE OBJECTIVES At the end of the semester, the students must be able to: 1. Review important concepts in organic chemistry such as nomenclature, physical and chemical properties and separation techniques in the laboratory, 2. Learn the theories and principles of the different spectroscopic techniques (MS, UV/Vis, IR, NMR), 3. Understand the principles of spectroscopy including instrumentation, spectroscopic processes, 4. Interpret and analyze spectra of the different techniques for a simple organic compound; 5. Predict structure of unknown organic compound based on the given properties and spectra. Content PRELIMINARIES VMGO of the University, College of Science, Department of Chemistry REVIEW I. IUPAC Nomenclature of different functional groups II. Physical Properties III. Chemical Properties IV. Separation Techniques ORGANIC QUALITATIVE ANALYSIS I. Classification of Organic Compounds by Solubility A. Determination of Solubilities B. General Solubility Rules C. Solubility in Organic Solvents II. Chemical Tests for Functional Groups Specific Objectives Relate the mission, vision and goals of the college to the role of chemistry in the realization of these VMGO Schedule/ hrs Activities/Methodologies/ Teaching Strategies 1.5 The student should be able to: 1. Recall basic organic nomenclature 2. Enumerate and describe the physical properties of organic compounds 3. Identify chemical reactions with visible changes in the solution 4. Determine separation technique for mixture of organic compounds 5. Familiarize with the use of ACD Chemsketch to draw organic compounds 4.5(lec) 18(lab) The student should be able to: 1. Review solubility trend among the different functional groups; 2. Classify organic compounds according to their solubility property; 3. Identify chemical tests for specific functional groups; 4. Suggest chemical tests appropriate for specific organic compounds; 5. Propose scheme in identifying simple organic compounds using chemical tests and known properties; 6. Identify unknown organic compounds based on the given properties and results from chemical tests. 6(lec) 12(lab) Materials Evaluation/ Assessment Technique VMGO handout/transparencies Lecture Board Work Problem Sets Lab activities: Exercises: nomenclature, physical and chemical properties Computer – use of chemsketch software Lecture Board Work Problem Sets Lab activities: Exercises – Solubility classification and chemical tests Solubility Test Classification Common Chemical tests PowerPoint ACD Chemsketch software Laptop – each group must bring one Handout: Organic Nomenclature, Physical and Chemical Properties Short Quizzes PowerPoint Handout-Organic Qualitative Analysis with problem sets Short Quizzes 1st Long Exam Content MASS SPECTROMETRY I. Introduction II. Instrumentation III. The Molecular Ion IV. The Ionization Process V. The Nitrogen Rule VI. Molecular Formula Determination VII. Accurate Mass VIII. Isotope Ratio Data A. Common Elements in Organic Compounds B. Bromine and Chlorine IX. Fragmentation Patterns for Organic Functional Groups INFRARED SPECTROSCOPY I. Background Information A. Electromagnetic Radiation B. Molecular Vibrations C. Infrared Spectroscopy Basics II. Instrumentation III. General Approach to IR Spectrum Analysis IV. Table of Functional Group Absorptions V. Example Spectra for Various Functional Groups ULTRAVIOLET/VISIBLE SPECTROSCOPY I. Background Information A. Basics of Ultraviolet Light Absorption Specific Objectives Schedule/ hrs The student should be able to: 1. Analyze free-radical halogenations at the mechanistic level; 2. Recognize the different types of hydrogen and carbon atoms; 3. Predict the halogenations products of alkanes and cycloalkanes 4. Suggest some methods of preparation of alkenes and alkynes; 5. Predict the product formed from the different oxidation reactions of alkenes and alkynes; 6. Propose structures for alkenes and alkynes from their oxidative cleavage products; 9 (lec) 12 (lab) The student should be able to: 1. Predict the products formed by benzene and its derivatives in substitution reactions; 2. Write mechanisms for EAS and NAS reactions of benzene and its derivatives; 3. Predict the oxidation products of alkylbenzenes; and 4. Suggest synthetic routes for preparing simple aromatic compounds. 4.5 (lec) 6 (lab) The student should be able to: 1. Predict the products of the following reactions of alcohols and alkyl halides: 4.5 (lec) 6 (lab) Activities/Methodologies/ Teaching Strategies Lecture Board Work Problem Sets Group homework/project Materials Evaluation/ Assessment Technique PowerPoint Handout: Mass Spectrometry including problem sets Short Quizzes Powerpoint Handout: IR Spectroscopy with example spectra and problem sets Short Quizzes 2nd Long Exam Powerpoint Handout: UV/Vis Spectroscopy; Table of Short Quizzes Lab activities: Group Work – identify organic compounds based on the given property and mass spectra Lecture Board Work Problem Sets Lab activities: Group Work – identify organic compounds based on the given property and infrared spectra Lecture Board Work Problem Sets Content B. Measurement and Presentation of the Spectrum C. UV/Vis Spectroscopy Generalizations II. Types of Electronic Transitions III. Empirical Rules for Caluclating Uv/Vis Absorptions A. Woodward-Fieser Rules for Dienes B. Woodward's Rules for Conjugated Carbonyl Compounds C. Mono-Substituted Benzene Derivatives D. Di-Substituted Benzene Derivatives E. Benzoyl Derivatives NMR BASICS and 1H RESONANCE I. Nuclear Spin States II. Chemical Shift III. Instrumentation IV. Solvents for 1H NMR V. Information Obtained From NMR Spectroscopy A. Chemical Equivalence B. Integration C. Factors Influencing Chemical Shift D. 1H Correlation Chart E. Spin-Spin Splitting (n + 1 Specific Objectives 2. Schedule/ hrs reaction as acids and bases, elimination of water (dehydration) or HX, and nucleophilic substitution; and Determine the necessary reagents and reaction conditions that bring about the reactions of alcohols and alkyl halides The student should be able to: 1. Suggest some methods for the laboratory preparation of aldehydes and ketones; 2. Predict the products formed in the reactions of aldehydes and ketones; and 3. Determine the necessary reagents/reaction conditions that bring about certain transformations of aldehydes and ketones to other compounds. Activities/Methodologies/ Teaching Strategies Lab activities: Group Work calculating UV/Vis Adsorption 4.5 (lec) 6 (lab) Lecture Board Work Problem Sets Lab activities: Group Work – identify organic compounds based on the given spectra Materials Evaluation/ Assessment Technique empirical rules for calculating UV/Vis Adsorption Powerpoint Handout: 1H NMR Short Quizzes Content Specific Objectives C RESONANCE I. Background II. 13C Correlation Chart III. 13C NMR Spectroscopy A. Proton-Coupled 13C Spectra B. Proton-Decoupled 13C Spectra C. Off-Resonance ProtonDecoupled 13C Spectra IV. Special Considerations in 13C NMR Spectroscopy A. Nuclear Overhauser Enhancement B. Problems With Integration of 13C Spectra C. Heteronuclear Coupling in 13 C Spectra The student should be able to: 1. Recognize the sources and use of carboxylic acids and their functional derivatives. 2. Correlate the chemical properties of carboxylic acids and their derivatives with their molecular structures; 3. Predict the products in the interconversion reactions of carboxylic acids and derivatives; 4. Determine the possible route for interconversion of carboxylic acids and derivatives; and 5. Suggest some simple methods for the preparing carboxylic acids and their derivatives. Schedule/ hrs Activities/Methodologies/ Teaching Strategies Materials Evaluation/ Assessment Technique Rule) 13 I. Determination of molecular structure from combined chemical and spectroscopic data The student should be able to: 1. Determine the structure of the organic compound using the given information from different combinations of spectroscopic data. 4.5 (lec) 6 (lab) Lecture Board Work Problem Sets Powerpoint Handout: 13C NMR Short Quizzes Problem Sets 3rd Long Exam (lecture) Powerpoint Problem Sets Problem Sets 3rd Long Exam (laboratory – take home) Lab activities: Group Work – identify organic compounds based on the given spectra 6-12 (lab) Lecture Board Work Problem Sets Lab activities: Group Work – identify organic compounds based on the given properties and spectra VIII. COURSE REQUIREMENTS Midterm and Final Exam, Short and Long Quizzes, Assignment/Seatworks/Group Homework, Lab Report and Problem Sets. IX. GRADING SCHEME LECTURE Assignment/Seatwork Short Quiz Long Exam (3)* Total LABORATORY Lab Work Reports/Problem Sets Assignment/Seatwork Long Exam (3)* Total 10% 15% 75% 100% 45% 10% 45% 100% *Long Exams for laboratory and lecture are separate. X. REFERENCES *all handouts and links for other references and useful software are available at buchem.weebly.com (regularly updated) Prepared By: Recommending Approval: Approval: MICHAEL V. MONTEALEGRE Instructor SAMUEL C. BOBILES Chairman, Department of Chemistry AMELIA A. DOROSAN, Ph.D. Dean, BU College of Science