Organic Chemistry 353-Chapter 3

Organic Chemistry 353-Chapter 3 -...

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Organic Molecules and Functional Groups A certain arrangement of atoms is called a functional group nctional oup etermines ll f e llowing A functional group determines all of the following properties of a molecule: onding nd ape ± Bonding and shape ± Type and strength of intermolecular forces ± Physical properties omenclature ± Nomenclature ± Chemical reactivity
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Hydrocarbons
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Hydrocarbons : Alkanes H H CH 4 H H Methane turated compounds ± Saturated compounds ± Have general formula C n H 2n+2 ± Isolated from natural gas and petroleum
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Hydrocarbons : Alkenes H H H H C 2 H 4 nsaturated compounds Limonene Ethene ± Unsaturated compounds ± Have general formula C n H 2n ± Produced in large quantities for polymer industry ± Many naturally occurring alkenes exist
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Hydrocarbons : Alkynes H H C 2 H 2 Ethyne (acetylene) ± Unsaturated compounds ave general formula C ± Have general formula C n H 2n 2 ± Ethyne synthesised by Wohler from CaC 2 and H 2 O ± Alkynes find applications in medicine
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Hydrocarbons : Aromatic ± Benzene is the prototypical aromatic compound ll the C bonds are the same length139 ± All the C C bonds are the same length 1.39 Å ± Intermediate between C C (1.54 Å) and C=C (1.34 Å)
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Functional Groups Containing C Z Bonds
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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 3 -...

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