Spectroscopic, redox and magnetic properties of a tetraiminediphenolate iron(II) macrocyclic complex: a model compound for iron proteins

The title complex [FeII(tidf-H2)(H2O)2](ClO4)2·H2O (tidf-H2 = tetraiminediphenolate ligand) has been prepared from a transmetallation reaction between [Mg2(tidf)](NO3)2·4H2O and an iron(II) salt in methanolic solutions under inert atmosphere conditions. It was characterized by analytical, magnetic and spectroscopic methods (Mössbauer, FTIR, UV-vis), by cyclic voltammetry as well as spectroelectrochemistry.