**** Important definitions on Stereochemistry **** 1. Isomer = different Compounds that have the same molecular formula. 2. Stereoisomer = Isomers which have atoms that differ only by their orientation in space. Unlike constitutional isomers, corresponding atoms in stereoisomers exhibit the same connectivity. 3. Super posable = A term that describes the ability to precisely overlap one object over another. Only identical objects are superposable, everything else isnon-superposable 4. Chiral =A molecule is chiral if it is not superposable on its mirror image. 5. Achiral = A molecule is achiral if it is superposableon its mirror image 6. Meso = A molecule is meso if it is achiral and contains two or more stereocenters. 7. Enantiomer = Stereoisomers that are non-superposabl e mirror images. 8. Diastereoisomer = Stereoisomers that are non-superposabl e, but are not mirror images. 9. Constitutional isomer = Isomers which contain atoms that differ in connectivity. Admin
Posted on: Thu, 13 Jun 2013 15:46:10 +0000
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