Engineering
Chemistry
Optical Isomerism
IUPAC Nomenclature of Organic Compound
Homologous series
Question
How many d-isomers are possible by
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Solution
The compound has 4 chiral centers (carbon atoms with 4 different groups). The maximum number of stereoisomers for a molecule with n chiral centers is 2n.
Therefore, the total number of stereoisomers is .
For every set of stereoisomers, exactly half are d-isomers and half are l-isomers. So, the number of d-isomers is 16 / 2 = 8.
Final Answer: 8