Electrochemical characterization of mono- and bisfullerene compounds involving 2,5-dimethoxycarbonylpyrrolidinofullerene using microelectrode voltammetry

The electroreduction behavior of nine 2,5-dimethoxycarbonylpyrrolidinofullerenes and three 2,5-dimethoxycarbonylpyrrolidinofullerene dimers has been investigated by cyclic voltammetry (CV) on a gold microdisk electrode. Four reversible reduction peaks and two irreversible reduction peaks are observed for each fullerene derivatives. The half-wave potentials of all the derivatives are more negative than that of C60 itself. The diffusion coefficient of each monofullerene derivatives is measured according to their steady-state voltammograms.