Aks'onova N. Structure and physical properties of fullerite C60.

High-purity, with impurities and polimerized fulletite C60.The aim of study is a compartive investigations of structurals, thermodynamical and microplastical characteristics of fullerite C60. X-ray powder diffraction. The lattice parameters, molar volumes and densities of high-puritiy C60 over the temperature range 5-293 K have been obtained. The thermodynamically properties of hight-purities C60 are analyzed. The microplasticitie anomalies strongly correlate with anomalies in the temperature dependence of the structural properties. Structure anomalies due to crystal lattice defects was found. An unusually strong influence of nonmetal impurities is observed. The structure phase composition and lattice parameters of the C60 polymerized at relatively moderate temperature have been obtained.