Details

Autor(en) / Beteiligte

• Balaraman, Lakshmi
• Emhoff, Kylin A.
• Salem, Ahmed M.H.
• Hanna, Jovana
• Alsabony, Mohamed N.
• Bayachou, Mekki
• Mundell, Joseph J.
• Christopher Boyd, W.

Titel

Electrochemical studies of cobalt(II) diphenylazodioxide complexes

Ist Teil von

• Inorganica Chimica Acta, 2020-02, Vol.501, p.119277, Article 119277

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2020

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• [Display omitted] •The electrochemistry of two Co(II) azodioxide complexes has been studied.•CV measurements show two quasireversible redox couples for each.•Spectroelectrochemical measurements are consistent with this quasireversibility. The electrochemical behavior of the unusual cobalt(II) diphenylazodioxide complex salts [Co(az)4](PF6)21 and [Co(bpy)(az)2](PF6)22 has been studied by cyclic voltammetry. Each complex displays two quasireversible redox couples, which are proposed to correspond to a reduction of Co(II) to Co(I), followed by a ligand-based reduction. Irreversible reductions of 1 are observed at more negative potentials, and are proposed to arise from deposition of elemental Co and the decomposition of transiently formed Co(-I) species. Spectroelectrochemical experiments on both 1 and 2, involving electrolytic reduction followed by reoxidation, are consistent with the quasireversibility observed in the CV measurements.