Chapter 9 Review Sheet (Part I)

Chapter 9 Review Sheet (Part I) - Chapter 9:...

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A B C D A B C D mirror enantiomers Chapter 9: Stereochemistry Enantiomers are mirror-image molecules that are not superimposable. They possess "handedness" meaning they share the same relationship as a left and right hand, both look the same but are arranged differently. Simple enantiomers result from tetravalent (sp3) carbon atoms with 4 different substituents. * A B C A achiral Achiral means that the molecule is not chiral. If there are not four different substituents then a plane of symmetry can be identified, thus making the molecule achiral s y m e t r mirror * There are other pairs of enatiomers that do not depend on this fact. Br Chiral centers, carbons atoms which are chiral, can occur anyware as long as there are 4 different substituents. Chiral Center 2 1 3 4 2 1 3 4 R-Configuration S-Configuration C o n f i g u r a t i o n A s s i g n m e n t 1) Assign priorities in order of decreasing atomic number, so highest atomic number gets the highest priority. 2) If this is not sufficient then apply the priority rules to the second atom and so on as we did with alkene prioritization.
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Chapter 9 Review Sheet (Part I) - Chapter 9:...

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