Formation Of Transition Metal Complexes Research Articles

On the stabilities of transition metal complexes—I Theory of the energies

A molecular orbital theory of the energies of formation of transition metal complexes is presented. The energies of pairing of d-electrons in covalent regular octahedral d n -complexes are calculated in terms of atomic spectral parameters. It is then shown, by means of a hole formalism, that the pairing energies for regular tetrahedral d 10− n -complexes are formally the same. A reason is suggested as to why regular complexes with certain spins, which are apparently possible in principle, are unknown experimentally. Certain aspects of the electrostatic crystal-field theory are briefly compared with the present treatment.