SPECTROELECTROCHEMICAL STUDIES OF [MO(DTC)(4)][EU(DTC)(4)] AND [MO(DTC)(4)][ER(DTC)(4)]

Redox and spectroscopic properties of the eight-coordination complexes of molybdenum and the rare-earth elements Eu or Er with N, N-diethyld ithiocarbamate (dtc) were characterised by cyclic voltammetry and UV-v isible absorption spectra. The complex cation [Mo(dtc)(4)](+) is more stable than the complex anions [Eu(dtc)4](-) and [Er(dtc)4](-) in redo x processes, and possesses good redox reversibility. The electron tran sfer number, formal standard electrode potential in the redox process for the complex cation and its diffusion coefficients were obtained by in situ spectroelectrochemistry.