A meso compound or meso isomer is a non-optically active member of a set of stereoisomers, at least two of which are optically active. This means that despite containing two or more stereogenic centers, the molecule is not chiral. A meso compound is "superposable" on its mirror image.

What is meso compound with example?

Examples 1 and 2 are classified as meso compounds because they have at least two chiral centers and internal mirror planes, as indicated by the broken lines. In Example 3, hydrogen (H) and chlorine (Cl) are on the internal mirror plane, so Example 3 is still classified as a meso compound.

What is meant by meso compound?

Meso Compounds. A meso compound is an achiral compound that has chiral centers. It is superimposed on its mirror image and is optically inactive although it contains two or more stereocenters.