Donor-acceptor complexes and radical-ion salts based on fullerenes

The review generalises for the first time the published data on the synthes is and properties of donor-acceptor compounds based on fullerenes, various solvates and clathrates, inclusion compounds, molecular complexes and compl exes with charge transfer both with inorganic donors and with donors belong ing to tetrathiafulvalene, amine, metallocene and metalloporphyrin classes. Radical-ion salts of fullerenes with bulky cations and alkali metals obtai ned by intercalation or by direct synthesis in solution are discussed. Resu lts of studies of fullerene compounds by IR, optical, ESR, X-ray photoelect ron and C-13 NMR spectroscopy, as well as their conductive (including super conductive), magnetic and optical properties are discussed.