2005_campbl04

2005_campbl04 - Chapter 4: Carbon and the Molecular...

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Chapter 4: Carbon and the Molecular Diversity of Life
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Important Point:
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Carbon Chemistry But only Hydrocarbon Derivatives are Abundant in Life Hydrocarbons are Simpler Isomers are compounds that share molecular formulas but differ in some way in terms of their structure
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Carbon—Valence = 4
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Representational Models
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Rotation Around Single Bonds Free rotation
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Linear Alkanes: Branching Creates Structural Isomers: Structural Isomers = Same Formula, Different Structure “Methyl Propane” = “Isobutane”
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No rotation No rotation No rotation These are all planar molecules
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Implicitly Depicting Carbons Carbons shown as “corners” Double bonds Note are different formulas on either side of dots
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Double Bonds Note that these all the above have different molecular formulas They are not isomeric!
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Geometric Isomers A A B B A B B A Geometric isomers vary about double bonds No rotation about double bonds
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A A B B A B B A Geometric Isomers have same structure but different Geometry! You need to
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This note was uploaded on 06/03/2011 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

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2005_campbl04 - Chapter 4: Carbon and the Molecular...

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