William J. Vining

One- and two-electron pathways in the electrocatalytic reduction of CO2 by fac-Re(bpy)(CO)3Cl (bpy = 2,2′-bipyridine)

The cyclic voltammetry of fac-Re(bpy)(CO)3Cl (bpy = 2,2′-bipyridine) and of the intermediate complexes formed by bulk electrolysis in MeCN solution in the presence and absence of CO2 has been interpreted in terms of two different electrocatalytic pathways for the reduction of CO2 to Co, one involving an initial one-electron reduction and the other an initial two-electron reduction.

Photophysics and photochemistry of rhenium(V)-nitrogen triple bonds

Abstract Photophysical and photochemical studies on new nitrido and imido complexes of the type [NRe(diphos) 2 Cl] + and [PhNRe(diphos) 2 Cl] 2+ ] respectively, enable a direct comparison of excited state properties to be made (diphos is a diphosphine ligand). The two main findings follow are; 1) that the excited states are dramatically more nucleophilic than the ground state, and, 2) that the “ligand field” of the phenylimido group is weaker than that of the nitrido ligand.

Electrocatalytic reduction of CO2 at a chemically modified electrode

When electropolymerized, the complex Re(vbpy)(CO)3Cl (vbpy = 4-vinlyl-4′-methyl-2,2′-bipyridine), as a polymeric film on a Pt electrode, electrocatalytically reduces CO2 to CO with turnover numbers greatly exceeding those observed for the analogous electrocatalytic reduction of CO2 by Re(bpy)(CO)3Cl in homogeneous solution (bpy = 2,2′-bipyridine).