New ionic complexes of fullerenes C-60 and C-70 with clecamethylchromocene Cp*Cr-2-C-60(.)(C6H4Cl2)(2) (1), Cp*(2CrC60.)-C-.(C6H6)(2) (2); the multicomponent complex of (CS+)(C70(-)) with cyclotriveratrylene CTV.(Cs)(2)(.)(C-70)(2)(.)(DMF)(7)(.)(C6H6)(0.75) (3); bis(benzene)chromium Cr(C6H6)(2)C-.(60).(C6H4Cl2)(0.7) (4), Cr(C6H6)(2)(.) (C60C6H5CN)-C-. (5), Cr(C6H6)(2)(C70C6H4Cl2)-C-.-C-. (6), Cr(C6H6)(2)-C-60 (7); cobaltocene (Cp2CoC60C6H4Cl2)-C-.-C-. (8), (Cp2CoC70.)-C-.(C6H4Cl2)(0.5) (9); and cesium Cs.C-70(.)(DMF)(5) (10) have been obtained. The complexes have been characterized by the elemental analysis, IR-, UV-vis-NIR spectroscopy, EPR and SQUID measurements. It is shown that C60(.-) exists as a single-bonded diamagnetic (C60(-))(2) dimer in 1, 2, 4, 5, and 8 at low temperatures (1.9-250 K). The dimers dissociate above 160-250 K depending on donor and solvent molecules involved in the complex. C60(.-) dimerizes reversibly and shows a small hysteresis (<2 K) at slow cooling and heating rates. The single-bonded diamagnetic (C-70(-))(2) dimers are also formed in 6, 9, and 10 and begin to dissociate only above 250-360 K. The IR and UV-vis-NIR spectra of a-bonded negatively charged fullerenes are presented.