Chapter 19, Problem 38QAP

Interpretation Introduction

Interpretation:

The reason for the formation oflow-spin and high spin octahedral complexes by Mn³⁺ and not by

Mn⁴+ should be determined.

Concept introduction: A transition metal cation has no outer s- electrons available for bonding, rather the inner d -electrons (in case of 3d transition metal elements) are available for making coordinate bonds with the ligands. Electrons are distributed in the five d- orbitals according to Hund’s rule which results in a maximum number of unpaired electrons. The abbreviated electronic configuration of an element depicts the electronic configuration of the elements by making use of noble gas configuration