An effective crystalline field for calculating excitation of d-electrons in complexes of transition metals

The method of an effective crystalline field (ECF) suggested previously to assess magnetic and optical properties of transition metal complexes is rea lized with INDO parametrization of ligand atoms and applied to calculate th e ground state and spectrum of low-energy excitations of the central ion in aquo-, amino, and fluoro-complexes of transition metals of the first trans ition row and of some metalloporphyrins and chlorine-copper complexes.