Molecular orbital theory of octahedral complexes

Molecular orbital theory of octahedral complexes

1. Molecular Orbital (M. O.) Theory (Octahedral Complexes) Dr. Mithil Fal Desai Shree Mallikarjun and Shri Chetan Manju Desai College Canacona Goa

2. A σ M. O. for octahedral complex t 2g, e g a 1g , t 1u, e g a 1g t 1u t * 1u a * 1g e * g e g a 1g t 1u Δ o t 2g Ligand group orbitals Metal orbitals

3. a 1g , t 1u, e g ( σ ) Ligand group orbitals A σ and π M. O. diagram for octahedral complex (n-1)d t 2g, e g (ns) a 1g (np) t 1u t * 1u a * 1g e * g e g a 1g t 1u Δ o t 2g Metal orbitals t * 2g t 2g ( π *) t 2g ( π ) MX 6 molecular orbitals π acceptor ligand

4. (n-1)d t 2g, e g a 1g , t 1u, e g ( σ ) (ns) a 1g (np) t 1u t * 1u a * 1g e * g e g a 1g t 1u Δ o t 2g Ligand group orbitals Metal orbitals t * 2g t 2g ( π ) A σ and π M. O. diagram for octahedral complex t 2g ( π *) MX 6 molecular orbitals (t 1u, t 1g, t 2u, t 2g ) π donor ligand