The formation of heterobinuclear µ-oxo Cr–O–Fe porphyrin complexes by the reaction of oxochromium(IV) and iron(II) porphyrins

Abstract

The reaction of α,β,γ,δ-tetraphenylporphinato-oxochromium(IV)[(TPP)CrO] with α,β,γ,δ-tetraphenylporphinato-iron(II)bis(piperidine) in toluene results in the formation of the mixed-metal complex (TPP)Cr^III–O-Fe^III(TPP) characterised by chemical reactions and magnetic measurements [the metal ions are antiferromagneticlly coupled Fe (S= 5/2)-Cr (S= 3/2)]; similar µ-oxo compounds having dissimilar porphyrin ligands on each metal have also been prepared.