SYNTHESIS OF THE NEW 1,2-DITHIOLANE METAL COMPLEXES[M(BDDT)(2)(-)] (M=NI,CU) AND THEIR ELECTRONIC-STRUCTURES

The neu 1,2-dithiolene, 1,9-butanediyldithioethylene-1,2-dithio (BDDT2 -), has been isolated. In addition, new monoanionic bis-complexes with nickel and copper have been prepared and characterized. In order to i nvestigate the detailed electronic structure of the metal complexes of the new ligand, BDDT2-, in terms of the oxidation state of the centra l metal ions, we have carried out molecular orbital (MO) calculations of Ni(BDDT)(2)(-) and Cu(BDDT)(2)(-) utilizing an Extended Huckel meth od. Cyclic voltammetry data for both complexes were obtained with a po tentiostat. We have also compared these results to the previously synt hesized Ni(PDDT)(2)(-), Ni(DDDT)(2)(-), Cu(PDDT)(2)(-), and Cu (DDDT)( 2)(-).