Chapter 19, Problem 52E

Interpretation Introduction

Interpretation: The correct crystal field diagram for ${{\text{[Cr(NH}}_{\text{3}}{\text{)}}_5\text{Cl]}}^{\text{2+}}$ , ${{\text{[Co(NH}}_{\text{3}}{\text{)}}_4{\text{Br}}_{\text{2}}\text{]}}^{\text{+}}$ and ${{\text{[Fe(H}}_{\text{2}}{\text{O)}}_{\text{6}}\text{]}}^{\text{3+}}$ needs to be determined from the given options.

Concept Introduction:

Crystal field theory is the theory given to explain the bonding in the coordination complexes. As ligand approaches towards the metal ion, the d-orbital of metal ion divide according to the energy of metal ion. On the basis of energy and degeneracy, the d-orbital can be classified as ${\text{t}}_{\text{2g}}$ and ${\text{e}}_{\text{g}}$ orbitals. The electrons will fill according to their energy levels.