Synthesis and Characterization of Chloridobis(dimethylglyoximato)4-(2-ferrocenylvinyl)pyridinecobalt(III): A New Heterobinuclear Cobaloxime

The synthesis of a new heterobinuclear cobaloxime with 4-(2-ferrocenylvinyl)pyridine,fcvpy,is reported. the complex [cocl(dmgh)2(fcvpy)],where dmgh2 is dimethylglyoxime and dmgh is dimethylglyoximato,has been characterized by 1h-nmr,uv-vis,cyclic voltammetry,and elemental analysis. the cyclic voltammogram of this complex shows a fc/fc+ reversible wave at +0.58 v versus ag/agcl,one irreversible wave,e p c = -0.54 v versus ag/agcl,assigned to the reduction of co(iii) to co(ii),and two quasireversible processes at -1.02 v and -1.10 v versus ag/agcl associated with the reduction of co(ii). the complex showed ferrocene-ligand charge transfer bands at 334 nm and 505 nm. tddft/b3lyp/6-31g(d) calculations support this assignation. © 2016 sebastián pizarro et al.