isomerism in complex ions

• Complexes can show two types of stereoisomerism:

  • cis-trans isomerism
  • optical isomerism
• Cis-trans isomerism in square planar complexes

  
• Cis-trans isomerism in octahedral complexes

  
• Optical isomerism~(non-superimposable mirror images).
• Complexes with 3 bidentate ligands can form two optical isomers (non-superimposable mirror images).