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Anti Conformation

Article ID: 38
Last updated: 31 Jan, 2011
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Description given to two substitutents attached to adjacent atoms when their bonds are at 180 degrees with respect to each other.  Below are generic representations of anti conformations in both a Newman projection and a wedge-and-dash drawings.

 

This idea also explains why a carbon chain is drawn in a zig zag manner.  In the zig zag conformation, all carbon-carbon bonds have the largest groups (aka the rest of the carbon chain) anti from each other.  See the carbon chain below, for example.

 

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Conformational Analysis Introduction     Conformational Analysis of Cyclohexane

Department of Chemistry & Chemical Biology