CRYSTAL-STRUCTURE OF A NEW MOLECULAR-COMPLEX OF FULLERENE WITH TETRAMETHYLTETRASELENAFULVALENE - C-60-CENTER-DOT-TMTSF-CENTER-DOT-2CS(2)

A new molecular complex of fullerene with tetramethyltetraselenafulval ene (TMTSF), C-60. TMTSF . 2CS(2), (1) was synthesized. The structure and composition of the complex were established by X-ray diffraction a nalysis. The crystals of C-60. C10H12Se4 . 2CS(2) are monoclinic: a = 15.407(2), b = 12.934(2), c = 12.026(2) Angstrom, beta = 108.39(3)degr ees, V = 2274.1(6) Angstrom(3), space group Cm, Z = 2, d(calc) = 1.929 g cm(-3), R = 0.047. The crystal structure of 1 consists of layers. L ayers formed by fullerene and CS2 molecules alternate with layers of T MTSF molecules. Peculiarities of the crystal structure of 1 are the no nplanar conformation of TMTSF molecules and the absence of shortened C ...C contacts between adjacent fullerenes molecules. The energy of int ermolecular TMTSF...C-60 interactions in the crystal was estimated.