1,3-Dipolar cycloaddition of azomethine ylides to C generates a family of fullerene derivatives, colloquially termed 60
fulleropyrrolidines. In this paper, we report the synthesis and the electrochemical properties of fulleropyrrolidine and
fulleropyrrolidinium ion derivatives. Cyclic voltammetry measurements, performed using ultramicroelectrodes at 2608C
with scan rates as high as 50 V/s, allowed, for the first time in fullerene derivatives, the observation of six fullerene-centered
reductions. These derivatives also exhibit enhanced electron-accepting properties with respect to both the parent
fulleropyrrolidine derivatives and C . Bulk electrolysis carried out at the stage of the first reduction potential, gives rise to a 60
stable zwitterion, with both anion and cation located on the fullerene derivatives
