C_(60)甲苯溶液自然结晶的研究

Study on Natural C 60 Crystallization From Toluene Solution

用ＳＥＭ研究了纯Ｃ６０和Ｃ６０／Ｃ７０混合物的甲苯溶液在硅片上自然结晶的形态．结果表明纯Ｃ６０结晶遵循晶面淘汰律，Ｃ７０影响Ｃ６０结晶的形态，Ｃ６０／Ｃ７０混合物的结晶与纯Ｃ６０结晶有较大的差异．用溶液逐次结晶，制备１ｍｍ量级的Ｃ６０晶体，并进行了Ｘ射线劳厄相分析。

The crystal morphology of C 60 and C 60 /C 70 from toluene solution is studied by means of Scanning Electron Microscopy.The results indicate that the growth of C 60 crystals meets the rule of faced elimination.Crystal morphology varies with the variation of C 70 content in C 60 .Crystals of C 60 are grown from toluene solution,with a size of around 1mm.The C 60 single crystal is determined with X-ray diffraction.