Chapter 19, Problem 71AE

Interpretation Introduction

Interpretation:

The correct statement needs to be determined.

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 splits 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.

In tetrahedral complex, the ${\text{e}}_{\text{g}}$ orbitals are lower energy orbitals and ${\text{t}}_{\text{2g}}$ orbitals are higher energy orbitals.

In octahedral complex, the ${\text{t}}_{\text{2g}}$ orbitals are lower energy orbitals and ${\text{e}}_{\text{g}}$ orbitals are higher energy orbitals.