The total number of optically active isomers of the compound CH2 OH-CHBr-CHOH-CHBr-CH2 OH is

Name: Problem 154, Chapter 23: A Complete Resource Book in Chemistry for JEE Main
Uploaded: 2021-10-09T08:54:27-08:00
Duration: 1 min 1 s
Channel: Narayan Hari
Description: The total number of optically active isomers of the compound CH2 OH-CHBr-CHOH-CHBr-CH2 OH is

step 1 So in this problem, in CS2OH, CHBR, CHOH, CHOH, CHOH, CHBR, CHBR, CHBR, CH2OH. So I can write th

The total number of optically active isomers of the compound...

Key Concepts

Chirality

Chirality refers to the property of a molecule that makes it non?superimposable on its mirror image. Chiral molecules have a handedness, existing as a pair of enantiomers that rotate plane?polarized light in opposite directions. Understanding chirality is essential for analyzing optical activity, as only chiral compounds (those without an internal plane of symmetry) can be optically active.

Stereocenters

Stereocenters (or chiral centers) are atoms in a molecule that are attached to four different substituents, giving rise to distinct spatial arrangements. The number of stereocenters in a molecule generally establishes an upper limit for the number of stereoisomers, often calculated as 2^n in cases without symmetry, where n is the number of such centers.

Stereoisomerism

Stereoisomerism is the phenomenon where compounds have the same molecular formula and connectivity but differ in the three-dimensional orientations of their atoms. This includes enantiomers, which are mirror images, and diastereomers, which are non?mirror image isomers. The interplay between different stereoisomers is crucial in understanding the optical properties and reactivity of compounds.

Meso Compounds

Meso compounds are stereoisomers that contain stereocenters but are achiral due to the presence of an internal mirror plane. This symmetry renders them optically inactive even though they have chiral centers. Recognizing when meso forms occur is important to correctly count the number of optically active isomers, as these forms do not contribute to optical activity.

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