| 摘要 |
Described are fullerene derivatives of the formula (I) in which the symbols are as defined as follows: F is a fullerene unit of the formula C(20+2m) in which m = 20, 25, 28 or 29; E<1> and E<2>, when they are the same or different, are COOH, COOR, CONRR<1>, CHO, COR, CN, P(O)(OR)2 or SO2R, R and R<1> being straight-chain or branched-chain C1 to C20 aliphatic groups, optionally substituted one time or several times with the same or different substituents, in which up to every third CH2 unit may be replaced by O or NR<4>, R<4> being C1 to C20 alkyl or benzyl, or a benzyl or phenyl group optionally substituted by 1 to 5 substituents selected from the group R, OH, OR, COOR, OCOR, SO3H, SO2Cl, F, Cl, Br, NO2 and CN, or when they are the same the unit (a) or, when they are different from each other, COR, R or H, when they are different from each other, or COR/R or F/Cl/Br, R being as defined above, or, when they are different from each other, NO2, R<3> or H, R<3> being an aliphatic C1 to C20 group which may optionally have one or more substituents; n is a number from 1 to 10 + m, where m = 20, 25, 28 or 29. |
