EMR STUDY OF BIS(BENZENE-DITHIOCARBOXYLATO)COPPER(II) COMPLEX IN SOLUTION AND MAGNETICALLY DILUTED IN DIFFERENT HOST LATTICES

EMR studies of bis(benzene-dithiocarboxylato)copper(II) in the form of the pure solid sample, in solution as well as magnetically diluted in the host lattices of the corresponding complexes of Ni-II, Zn-II, Pd- II, and Pt-II are reported. Two different samples (violet and blue) ha ve been obtained in the Ni-II complex host lattice with EMR spectra in dicating a superposition of several individual Cu-II signals. The EMR spectrum of the violet sample is explained by a superposition of the i ndividual signals of (thio-, perthio-carboxylate)Cu-II and bis(perthio carboxylate)Cu-II while that for the blue Cu/Ni(dtb)(2) complex, as we ll as for Cu/Pd (dtb)(2) is explained by different positions of the Cu -II species in the host lattices. The EMR spectrum typical for the mag netically diluted sample caused by self redox reaction has been record ed in the pure solid sample of copper(II) dithiocarboxylate complex.