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

Abstract EN

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.