In situ ESR–UV/VIS/NIR spectroelectrochemistry of an empty fullerene anion and cation: The C82:3 isomer

The application of in situ ESR–UV/VIS/NIR spectroelectrochemistry to the highly purified C82:3 fullerene isomer with C2 symmetry made the detailed characterization of the radical structures formed by electrochemical generation possible. This first comprehensive spectroelectrochemical study of the stable radical anion and cation of an empty cage higher fullerene in acid-free organic electrolyte is a contribution to the general understanding of charged states at endohedral fullerenes.