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what is the Difference between conformational isomers and
configurational isomers ?
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Answer Posted / dr. shashi ranga
Conformational isomerism arises due to free rotation around
C-C single bond. Hence conformational isomers have same
molecular formulae and same physical/ chemical properties
but just spatial arrangement of groups differ. For eg.
staggered and eclipse form of ethane and boat and chair
form of cyclohexane. As the energy required for
interconversion is very small, conformers can't be
seperated.
Configuration isomerism arises due to some rigidity in the
molecule. For eg. geometrical isomerism is due to
restricted rotation around C=C bond while optical isomerism
is due to assymetricity in the molecule. Both these fall
under configurational isomerism. Configuration isomerism
have same molecular and structural formulae but differ in
one or more properties. We can seperate different
configurational isomers.Eg. malaic acid and fumaric acid.
| Is This Answer Correct ? | 79 Yes | 10 No |
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