Advices For Studying Organic Chemistry

trans-1,2-Dimethylcyclopentane (C 7 H 14 ) trans-1,2-Dimethylcyclopentane (C 7 H 14 )

(^)

5. Diastereomers are stereoisomers whose molecules are not mirror images of each
   other.

Me

Me

H

H

Me Me

H H
cis-1,2-Dimethylcyclopentane trans-1,2-Dimethylcyclopentane
(C 7 H 14 ) (C 7 H 14 )

SUBDIVISION OF ISOMERS

Isomers

(Different compounds with same molecular formula)

Constitutional isomers Stereoisomers
(Isomers whose atoms have (Isomers that have the same connectivity but
a different connectivity ) differ in the arrangement of their atoms in space)

Enantiomers Diastereomers
(Stereoisomers that are nonsuperposable (Stereoisomers that are not
mirror images of each other) mirror images of each other)

5.2 ENANTIOMERS AND CHIRAL MOLECULES

1. A chiral molecule is one that is not identical with its mirror image.


2. Objects (and molecules) that are superposable on their mirror images are achiral.