electrochemical behavior of the new mono and dinuclear co (iii) complexes of the types trans-[pyco((do)(doh)pn )(l)]pf6 and [{py co((do)(doh)pn)}2 (μ-dicyd)] (pf6)2 have been studied in acetonitrile solution. all the mono nuclear complexes show two quasi- reversible reduction couples associate to co(iii/ii)and co(ii/i). each of these redox couples split to two one electron waves in...