Coordination ability of zinc(ii) porphyrins with respect to electron-donating ligands. Influence of the structure and solvation effects

Abstract

Thermodynamics of the formation of molecular complexes of synthetic and natural zinc(ii) porphyrins with n-propylamine and glycine methyl ester in benzene was investigated. Study of the π—π complexes of zinc(ii) porphyrins with benzene demonstrated that thermodynamic stability of the axial complexes depends on both the structure of the porphyrin macrocycle and the ability of the corresponding metalloporphyrins to form energetically stable π—π complexes with aromatic molecules.