Chapter 19, Problem 65E

Interpretation Introduction

Interpretation: The reason of different crystal field diagram of tetrahedral complex ion than the octahedral complex ion needs to be explained. The formation of only high spin tetrahedral complexes 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 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.

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.