68
Chapter 5 Pauling “3-Electron Bonds” and Hypoligated Transition Metal Complexes
Figure 5-1: Orbital occupancies for some transition-metal ions (L = ligand).
2
z
d ) and the 4s and 4p orbitals may be hybridized to form six octahedral (
2
3
d sp )
hybrid orbitals. These orbitals are available for coordination with the six NH 3
ligands, so that six Co-N electron-pair σ-bonds can be formed, as is shown in
valence-bond structure (1).
Chapter 5 Pauling “3-Electron Bonds” and Hypoligated Transition Metal Complexes
Figure 5-1: Orbital occupancies for some transition-metal ions (L = ligand).
2
z
d ) and the 4s and 4p orbitals may be hybridized to form six octahedral (
2
3
d sp )
hybrid orbitals. These orbitals are available for coordination with the six NH 3
ligands, so that six Co-N electron-pair σ-bonds can be formed, as is shown in
valence-bond structure (1).