The structural-phase state of C60-C70 fullerene mixtures

被引：0
|
作者：
M. A. Eremina
R. M. Nikonova
V. I. Lad’yanov
V. V. Aksenova
机构：
[1] Russian Academy of Sciences,Physicotechnical Institute, Ural Division
[2] Udmurt State University,undefined
来源：
Russian Journal of Physical Chemistry A | 2009年 / 83卷
关键词：
Fullerene; Fullerene Molecule; Packing Defect; Crystal Solvate; Hexagonal Close Packing;
D O I：
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中图分类号：
学科分类号：
摘要：
The structural and phase state of the C60-C70 system at various C60/C70 ratios in mixtures obtained by the vaporization of solutions in toluene at ∼98°C was studied by X-ray structure analysis, differential scanning calorimetry, and infrared spectroscopy. Solid solutions based on the face-centered cubic packing of C60 are not formed in the C60-C70 system at C70 contents from 0.5 to 50 wt %. The hexagonal close packing of a solid solution of C60 in C70 can be formed as a result of the thermally activated decomposition of the ternary crystal solvate in the C60-C70-C6H5CH3 system. The structural state of multiphase mixtures formed under conditions far from equilibrium is characterized by a high degree of structure imperfection and greater ability to undergo oxidation compared with C60 and C70.
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页码：1924 / 1934
页数：10
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