Reactions of Chloroiron(III) Schiff Base Complexes with Superoxide Ion in Dimethyl Sulfoxide

Article abstract of DOI:10.1246/bcsj.55.2581

A series of monomeric chloroiron(III) complexes with the quadridentate or quinquedentate Schiff bases such as N,N'-disalicylideneethylenediamine or bis<3-(salicylideneamino)propyl>amine react with superoxide ions, O2^-, in dimethyl sulfoxide to give the corresponding μ-oxo dimers.The polymeric chloroiron(III) complexes with the polymeric (oligomeric) Schiff bases derived from 5,5'-methylenedisalicylaldehyde and triamines react with O2^- in dimethyl sulfoxide to give the oxygenated complexes, probably dioxygen adducts, Fe^III-O2^-.This is suggested by the absorption spectra and the polarographic measurements.