Redox-Activated Chemical EC Reactions

Whereas electrochemical techniques can be effective in terms of quantifying different thermodynamic and kinetic parameters in cases where chemical reaction follows redox activation (EC reactions) the identification of the intermediates formed during the reaction is problematic. In cases where the electrochemical response matches that of a known compound then this may provide a satisfactory basis for identification, but usually it is necessary to resort to other approaches. It is in relation to problems of this sort that SEC techniques can be of most value. 

The group 6 complexes, M(L-L)2(CO)2 (where L-L designates various bidentate ligands with P/As donor atoms) undergo well-defined redox reactions that feature stereochemical change linked to the formal oxidation state of the 

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