DIRECT ELECTROCHEMICAL SYNTHESIS AND CHARACTERIZATION OF COBALT AND NICKEL-COMPLEXES WITH 2-PYRIDINONE AND 2-PYRIDINEMETHANE-THIOL-1-OXIDE

The electrochemical oxidation of anodic metals (nickel and cobalt) in MeCN solutions of 2-pyridinone (HOpy) or 2-pyridine methanethiol-1-oxi de (HPMTO) or its dimer, 2,2'-dithiodimethyldipyridine-1,1'-dioxide (D PMTO), gives the simple complexes [Ni(OPY)2].2H2O, [CO(Opy)2].2H2O, [N i(PMTO)2].2H2O and [Co(PMTO)2].3H2O. When 2,2'-bipyridine (bipy) or 1, 10-phenanthroline (phen) was added to the electrolytic phase, only thr ee mixed complexes were obtained: [Ni(OPY)2bipy].H2O, [Co-(OPY)2phen]. H2O and [Ni(OPY)2phen].5H2O. The complexes were characterized by their elemental analyses, i.r. spectra and magnetic properties.