A coordination compound of cobalt(III) has the empirical formula CoCl ₃ 4 NH ₃ . It is known to exhibit octahedral geometry and shows geometrical isomerism. What are the hybridization and magnetic nature of this complex?

Step-by-step solution

For the complex with empirical formula CoCl ₃ 4 NH ₃ to exhibit geometrical isomerism in an octahedral geometry, it must be of the type MA₄B₂ . This means four ammonia molecules and two chloride ions are inside the coordination sphere, giving the structural formula [ Co ( NH ₃)₄ Cl ₂] Cl . The central metal ion is Co ³⁺ , which has an electronic configuration of [ Ar ] 3d^6 . For Co ³⁺ , ammonia ( NH ₃ ) acts as a strong field ligand. This causes the pairing of the 3d electrons against Hund's rule. Since all six el