Describe optical isomerism with suitable example.

Explanation

(i) Coordination compounds which possess chairality exhibit optical isomerism similar to organic compounds
(ii) The pair of two optically active isomers which are mirror images of each other are called enantiomers
(ii)Their solutions rotate the plane of plane polarised light either clockwise or anticlockwise and the corresponding isomers are called 'd' (dextro rotatory) and 'I' (levo rotatory) forms respectively
(iii)The octahedral complexes of type ` [M(x x)_3 ]^(n+-) [M(x x) _2AB]^(n+-) and [M (x x) _2 B_2]^(+-) ` exhibit optical isomerism
(v) Examples
The optical isomers of `[Co(en)_3]^(3+) `