Geometric Isomerism for coordination no. 6:
Optical isomerism: A chiral complex is optically active if its structure can not be superimposed on its mirror image. The condition necessary for a molecule to exhibit Optical isomerism is the absence a rotation reflection axis(Sn).
Easy judgement for optical activity implies the absence of plane or centre of symmetry.
Q. How can you make an optically active square planer complexes? Give example.
Answer: Square planer complexes are generally optically inactive since the moleculer plane acts as a plane of symmetry. But optical isomerism may also appear in square planar complexes having an asymmetric ligand.
