Organic Chemistry 353-Chapter 1

Organic Chemistry 353-Chapter 1 - Organic Chemistry 353 Dr...

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Organic Chemistry 353 Dr Ken Walsh SC 2263
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What is Organic Chemistry ? Organic Chemistry : The chemistry of the compounds of carbon
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Vitalism : A vital force was necessary to make organic compounds Freidrich Wohler 1828
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Synthetic Organic Chemistry N N N CH 3 NH 2 H 3 C H Mauveine : a synthetic dye William Henry Perkin 1856 ± Organic chemists can make molecules ± Important for medicine, materials, biology, physics ……
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Structural Theory he structure of a molecule is important ± The structure of a molecule is important Structure Properties Reactivity ± Valency toms in organic compound form a fixed number of bonds Atoms in organic compound form a fixed number of bonds carbon atom can form bonds to other carbon atoms ± A carbon atom can form bonds to other carbon atoms
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Why is carbon special ? Carbon is special for several reasons: 1. Carbon has a strong tendency to concatenate 2. Carbon is tetravalent, forming four bonds with neighboring atoms. 2. Carbon forms strong π -bonds.
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Chemical Bonding : The Octet Rule ± Atoms form bonds to produce the electron configuration of a noble gas e.g. He 1s 2 2s 2 , Ne 1s 2 2s 2 2p 6 ± Two major types of chemical bonds can form 1) Ionic Bond : Formed by the transfer of one or more electrons from one atom to another to create ions 2) Covalent Bonds : A bond that results when atoms share electrons
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Ionic Bonds ± Form between atoms of very different electronegativity ± Electronegativity is a measure of the ability of an atom to attract electrons ± Lithium Fluoride : An ionic compound
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This note was uploaded on 02/02/2011 for the course CHEM 353 taught by Professor Walsh during the Spring '11 term at University of Evansville.

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Organic Chemistry 353-Chapter 1 - Organic Chemistry 353 Dr...

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