TAILIEUCHUNG - Lecture Organic chemistry: Chapter 7 - L. G. Wade, Jr.

Chapter 7 - Structure and synthesis of Alkenes. The goal in this chapter: Draw and name alkenes and cycloalkenes; given a molecular formula, calculate the number of double bonds and rings; explain how the stability of alkenes depends on their structures; show how alkenes can be synthesized by eliminations from alkyl halides and alcohols. | Chapter 7 ©2010, Prentice Hall Organic Chemistry, 7th Edition L. G. Wade, Jr. Structure and Synthesis of Alkenes Chapter 7 Introduction Alkenes are hydrocarbon with carbon-carbon double bonds. Alkenes are also called olefins, meaning “oil-forming gas”. The functional group of alkenes is the carbon-carbon double bond, which is reactive. Chapter 7 Sigma Bonds of Ethylene Chapter 7 Orbital Description Sigma bonds around the double-bonded carbon are sp2 hybridized. Angles are approximately 120º and the molecular geometry is trigonal planar. Unhybridized p orbitals with one electron will overlap forming the double bond (pi bond) . Chapter 7 Bond Lengths and Angles sp2 hybrid orbitals have more s character than the sp3 hybrid orbitals. Pi overlap brings carbon atoms closer shortening the C—C bond from Å in alkanes down to Å in alkenes. Chapter 7 Pi Bonding in Ethylene The pi bond in ethylene is formed by overlap of the unhybridized p .

• Hoá học
• Organic chemistry
• Lecture Organic chemistry
• Hóa học hữu cơ
• Electronic Structure
• Orbital description
• Stability of cycloalkene
• In this workbook
• experiments are elaborated using small scale glassware and equipments from a Small Lab Kit
• developed at the Department of Chemistry
• Faculty of Science
• Chulalongkorn University in Thailand
• This Small Lab Kit was created as a result of the research project entitled “Chemistry Laboratory Based on Chemical Safety and Pollution Minimization” sponsored by Thai Research Fund (RDG 3 07 2543)
• One of the outcomes of this project is the organic laboratory book entitled “Organic Chemistry Laboratory Based on Chemical Safety and Pollution Minimization” written in Thai by professors from 7 universities in this project
• They compiled
• adjusted and tested the experiments taken from several traditional organic chemistry laboratory books using the prototype of Small Lab Kit
• Currently
• some selected experiments from this Thai organic chemistry laboratory text have further been modified
• rewritten and edited in English as appeared in this workbook
• Some experiments ar
• Ebook Organic chemistry
• Nucleophilic substitution
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• nucleophilic addition
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• Principles of organic chemistry
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