Question

Draw the geometrical isomers of each of the following complex ions.

$$\begin{gathered} \mathbf{a}\mathbf{\left)}\mathbf{[}\mathbf{Co}\mathbf{(}{\mathbf{C}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{4}}{\mathbf{)}}_{\mathbf{2}}\mathbf{(}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}{\mathbf{)}}_{\mathbf{2}}{\mathbf{]}}^{\mathbf{-}} \\ \mathbf{b}\mathbf{\right)}\mathbf{[}\mathbf{Pt}\mathbf{(}{\mathbf{NH}}_{\mathbf{3}}{\mathbf{)}}_{\mathbf{4}}{\mathbf{I}}_{\mathbf{2}}{\mathbf{]}}^{\mathbf{2}\mathbf{+}} \\ \mathbf{c}\mathbf{\left)}\mathbf{\right[}\mathbf{Ir}\mathbf{(}{\mathbf{NH}}_{\mathbf{3}}{\mathbf{)}}_{\mathbf{3}}{\mathbf{Cl}}_{\mathbf{3}}\mathbf{\left]} \\ \mathbf{d}\mathbf{\right)}\mathbf{\left[}\mathbf{Cr}\mathbf{\right(}\mathbf{en}\mathbf{)}\mathbf{(}{\mathbf{NH}}_{\mathbf{3}}{\mathbf{)}}_{\mathbf{2}}{\mathbf{I}}_{\mathbf{2}}{\mathbf{]}}^{\mathbf{+}} \end{gathered}$$

Short answer

The geometrical isomers of complex ions are as follows.

Step-by-step solution

a) Cis and trans [Co(C2O4)2(H2O)2]-

b) Cis and trans [Pt(NH3)4I2]2+

c) Cis and trans

$\left[\mathrm{Ir}({\mathrm{NH}}_3{)}_3{\mathrm{Cl}}_3\right]$is a system where and are monodented ligand exist as facial and meridonial form.

Cis and trans