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在一般分子固体中,除了研究分子所占据的空间位置以外,还要研究分子的取向,进而研究分子在晶体场中的形变或分子内部各原子的相互作用以及各个分子之间的相互作用.由于C_(60)分子是由20个六元环和12个五元环组成的一个具有Ih对称性的平截20面体,不是球对称,所以C_(60)分子在晶体中的取向也就成为十分重要的问题.X射线衍射已经证实不含溶剂
In general molecular solids, in addition to investigating the spatial positions occupied by molecules, the orientation of the molecules must be investigated to study the molecular deformation in the crystal field or the interaction of individual atoms within the molecule and the interactions between the molecules. The C 60 molecule is a truncated 20-sided body with Ih symmetry composed of 20 six-membered rings and 12 five-membered rings, which is not spherical symmetric. Therefore, the orientation of the C 60 molecule in the crystal becomes very large An important issue. X-ray diffraction has been demonstrated to be solvent-free