Spectroelectrochemical studies of [Mo(dtc)_4][Eu(dtc)_4] and [Mo(dtc)_4][Er(dtc)_4]

摘要

Redox and spectroscopic properties of the eight-coordination complexes of molybde- num and the rare-earth elements Eu or Er with N, N-diethyldithiocarbamate (dtc) were characterised by cyclic voltammetry and UV-visible absorption spectra. The complex cation [Mo(dtc)_4]~+ is more stable than the complex anions [Eu(dtc)_4]~- and [Er(dtc)_4]~- in redox processes, and possesses good redox reversibility. The electron transfer number, formal standard electrode potential in the redox process for the complex cation and its diffusion coefficients were obtained by in situ spectroelectro-chemistry.