Due to the presence of ambidentate ligands coordination compounds show isomerism. Palladium complexes of the type $\left[\mathrm{Pd}{\left({\mathrm{C}}_6{\mathrm{H}}_5\right)}_2\right.$ $\left.(\mathrm{SCN}{)}_2\right]$]  and $\left[\mathrm{Pd}{\left({\mathrm{C}}_6{\mathrm{H}}_5\right)}_2(\mathrm{NCS}{)}_2\right]$ are :

In a coordination molecule with an ambidentate ligand, linkage isomerism develops. linkage isomers straightforward illustration is provided by complexes containing the thiocyanate ligand, ${\mathrm{NCS}}^{-}$, which can bind either through the nitrogen atom to produce $\mathrm{M}-\mathrm{NCS}$or the Sulphur atom to produce $\mathrm{M}-\mathrm{SCN}$.