Structural model of toluene-solvated C70 from high-resolution transmission electron microscopy

The arrangement of C70 molecules in a C70–toluene compound was discussed using geometrical considerations based on hard-sphere packing, compared with experimental results of X-ray and transmission electron microscopy. The compound has an Amm2 orthorhombic crystal structure with lattice parameters a=1.086(2), b=1.055(6) and c=3.309(8) nm. The structure is closely related to the fcc-C70 pure phase. The shearing displacement of afcc/4[110]fcc in (001)fcc and the dilatation along [001]fcc occur due to incorporation of toluene molecules. The chemical formula of the compound is C70·C6H5CH3.