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Explain ionisation isomerism with suitable example. |
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Answer» Solution :`(i)` IONISATION isomerism arises when an ionisable counter ion (SIMPLE ion) itself can act as a ligand. `(ii)` Th exchange of such counter ions with one or more ligands in the coordination ENTITY will result in ionisation isomers. These isomers will give different ions in solution. `(iii)` For example , consider the coordination COMPOUND `[Pt(en)_(2)Cl_(2)]Br_(2)`.In this compound, both `Br^(-)` and `Cl^(-)` have the ABILITY to act as a ligand and the exchange of these two ions result in a different isomer `[Pt(en)_(2)Br_(2)]Cl_(2)`. In solution, the first compound `Br^(-)` ions while the later gives `Cl^(-)` ions and hence these compounds are called ionisation isomers. |
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