Question

Expalin hydrate isomerism and linkage isomerism with suitable example.

Answer 1

Hydrate isomerism $\to$ In hydrate isomerism, the isomers have the same composition but differ with respect to the number of solvent ligand molecules as well as the counter ion in the crystal lattice.

E.g.- $\left[Cr{\left(H_{2}O\right)}_6\right]{Cl}_3$ and $\left[Cr{\left(H_{2}O\right)}_{5}Cl\right]{Cl}_2\cdot 2H_{2}O$ are hydrate isomers.

Linkage isomerism $\to$ Linkage isomerism is the existence of coordination compounds that have the same composition differing with the connectivity of the metal to a ligand.

E.g.- Thiocyanate $\left({CN}^{-}\right)$ and isothiocyanate $\left({SCN}^{-}\right)$ ion are linkage isomers.