Fe(III)-Cu(II)-oxo-trinuclear complexes with diphenylacetic acid (L),
[Fe(2)CuOL(6)(H2O)(3)]. 3H(2)O, where prepared and characterized by el
emental analysis, electrical conductance, magnetic susceptibility. mea
surements, and IR and electronic spectra. The Fe(III)Cu(II) complexes
were isolated as reaction intermediates in formation of the copper fer
rites according to an improved variant of the wet ferritization method
in which the pH plays a determining role.