1,6,11,16,18,26,36,44,48,58-Decakis(trifluoromethyl)-1,6,11,16,18,26,36,44,48,58-decahydro(C60–I h)[5,6]fullerene benzene hemisolvate

Abstract

The title compound, C70F30·0.5C6H6, which crystallizes with one half-molecule of benzene in the asymmetric unit, is one of four isomers of C60(CF3)10. The benzene molecule is disposed about a center of inversion. The fullerene molecule has an idealized C60–I h core, with the ten CF3 groups arranged in an asymmetric para-para-para-meta-para-meta-para-meta-para (p 3 mpmpmp) ribbon of edge-sharing C6(CF3)2 hexagons. There are no cage Csp 3–Csp 3 bonds. There are intramolecular F...F contacts between pairs of neighboring CF3 groups, ranging from 2.565 (1) to 2.727 (1) Å.