ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Electrochemical study of some chromium(III) tris(dithiocarbamate) complexes
J. Labuda, D. I Bustin, and J. Mocák
Department of Analytical Chemistry, Slovak Technical University,
Abstract: Study has been made of redox behaviour of CrL3 complexes (L = diethyl-,
tetramethylene-, and pentamethylenedithiocarbamate) at platinum and mercury electrodes in dimethylformamide and acetonitrile. The reduction of
complexes is a two-step reaction. The first step Cr(III) →Cr(II) is connected
with the liberation of one ligand, the second two-electron reduction step leads
to chromium(O) and to a complete decomposition of the coordination sphere.
During the primary oxidation one electron is transferred on to the complex
particle and then the oxidation is followed by the intramolecular redox process.
The ability of the dithiocarbamate ligand to stabilize a high oxidation state of
metal has been proved to be rather lower in the case of complexes with high
values of oxidation potential.
Full paper in Portable Document Format: 372a273.pdf
Chemical Papers 37 (2) 273–283 (1983)