Chapter 20, Problem 20.143CP

Interpretation Introduction

Interpretation:

Predict the cyrstal field energy-level diagram for a square pyramidal $M{L}_5$ complex that has two ligands along the $\pm x$ axis and $\pm y$ axis but only one ligand along the z axis. The diagram should be intermediate between those for an octahedral $M{L}_6$ complex and a square planar $M{L}_4$ complex.

Concept Used:
In octahedral complex $d_{xy}$ , $d_{zx}$ and $d_{yz}$ orbitals have lower energy level as compared to $d_{z^2}$ and $d_{x^2-y^2}$ orbitals.
In square planar complex, $d_{xy}$ , $d_{zx}$ and $d_{yz}$ orbitals are split into $d_{zx}$ and $d_{yz}$ generate orbitals and $d_{xy}$ orbital of higher energy.