P. Belik et al., THE DIELS-ALDER ADDUCT OF C-60 AND 4,5-DIMETHOXY-O-QUINODIMETHANE SYNTHESIS, CRYSTAL-STRUCTURE, AND DONOR-ACCEPTOR BEHAVIOR, Advanced materials, 5(11), 1993, pp. 854-856
Covalent linking of C60 to electron donors is expected to create attra
ctive substrates for the study of electron or energy transfer. The suc
cessful synthesis of a 4,5-dimethoxy-o-quinodimethane-C60 adduct is de
scribed. The unique crystal structure has been determined and the band
gap measured by ESCA. One of the most interesting features of the crys
tal structure of the mono-adduct is the close contact of one of the me
thoxy groups to a neighboring C60, leading to the formation of a chain
of interacting fullerene cages.