NEETChemistryCoordination Compounds
Which of the following structural conditions is strictly necessary for a coordination compound to exhibit coordination isomerism?
Options
- AThe presence of at least one ambidentate ligand in the coordination sphere
- BA counter ion outside the coordination sphere that can act as a potential ligand
- CBoth the cationic and anionic entities of the salt must be complex ions
- DThe presence of solvent molecules that can interchange with ligands in the coordination sphere
Correct answer
C. Both the cationic and anionic entities of the salt must be complex ions
Step-by-step solution
Coordination isomerism occurs when there is an interchange of ligands between cationic and anionic entities of different metal ions present in a complex. For this interchange to be possible, the coordination compound must consist of both a complex cation and a complex anion. If only one part is a complex ion and the other is a simple ion, coordination isomerism cannot occur. The presence of an ambidentate ligand leads to linkage isomerism. A counter ion acting as a potential ligand leads to ionization isomerism. Th