Consider the complex . What is the theoretical spin-only magnetic moment of this complex? — Coordination Compounds Chemistry Question

💡 Solution & Explanation

The brown ring complex contains $Fe^+$ ($3d^7$) and $NO^+$ (nitrosonium). $H_2O$ is a weak field ligand. Configuration is $t_{2g}^5 e_g^2$ with 3 unpaired electrons. $\mu = \sqrt{3(5)} = 3.87$ B.M. [34, 35].