Synthesis and crystal structure of a new molecular complex of fullerene C-70, 4BNDY center dot 3C(70)center dot 4C(6)H(6) (BNDY is binaphtho[1,8-d,e]-1,3-dithiin-2-ylidene)

A new C-70-based molecular complex 4BNDY . 3C(70). 4C(6)H(6) (1)(.) (BNDY i s binaph-tho[1,8-d,e]-1,3-dithiin-2-ylidene) was prepared, and its full X-r ay diffraction study at room temperature was performed. The C-70 molecules in crystal 1 are ordered in different ways, and their ordering depends on v an der Waals interactions between them and nonplanar BNDY molecules in the boat conformation. The neighboring BNDY molecules in the structure are boun d to each other by pi-pi interactions.