Chem231-Ch. 8 Stereochemistry

Chem231-Ch. 8 Stereochemistry - Stereochemistry(skip...

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8.1 Stereochemistry  A. Constitutional Isomers B. Stereoisomers: Different 3-D orientation in space 1) Enantiomers: stereoisomers which are nonsuperimposable  mirror images of eachother. 2) Diastereomers: stereoisomers which are not mirror images. 8.2 Chirality A. Chiral Objects 1) Not Superimposable on their mirror images 2) Show "Handedness" B. Achiral Objects 1) lack chirality 2) the object and its mirror image are superimposable 3) possesses a plane of symmetry (one half is the mirror image of  the other half of the object) C. Stereocenter (Asymmetric Center)
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1) a carbon attached to 4 different groups 2) Causes chirality in organic molecules 8.3 Naming Stereocenters-The (R-S) System A. Priority Rules 1) Locate the stereocenter 2) Assign a priority to each of the 4 substituents 3) Orient the molecule in space such that the group of lowest 
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This note was uploaded on 04/08/2009 for the course CHM 231 taught by Professor Barrows during the Spring '08 term at Grand Valley State University.

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Chem231-Ch. 8 Stereochemistry - Stereochemistry(skip...

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