Angular-overlap parameters for tetrahalogeno-complexes of copper(II)and cobalt(II)
Abstract
Single-crystal magnetic susceptibilities and electronic spectra of Cs2[CuCl4], Cs2[CuBr4], Cs3[CoCl4]Cl, Cs3[CoBr4]Br, and [NEt4]2[NiCl4] are interpreted within the angular-overlap model for ligand fields. Unambiguous values for σ- and π-bonding parameters are determined by the spectra of the copper complexes. Ranges for these parameter values are obtained from the magnetic moments and zero-field-splitting values of the cobalt complexes.