Which from following coordinate complexes is a heteroleptic complex?
Which from following coordinate complexes is a heteroleptic complex?
Pentacarbonyliron(0)
Triamminetrinitrocobalt(III)
Tetraamminecopper(II) ion
Tetracyanonickelate(II) ion
Solution
In triamminetrinitrocobalt(III), i.e., $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_2\right)_3\right]$, two different ligands are attached to the central metal ion. Therefore, it is heteroleptic complex.