Raman effects under pressure in chloroadamantane plastic crystal
Raman effects under pressure in chloroadamantane plastic crystal
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氯金刚烷塑料晶体在压力下的拉曼效应
DOI：
10.1088/0953-8984/14/37/309
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Descamps
中科院分区：
文献类型：
--
作者：
A. Hédoux;Y. Guinet;F. Capet;F. Affouard;M. Descamps
对取向无序的氯金刚烷晶体进行了加压下的拉曼散射实验。在晶格模和内模区域进行的研究表明，这种塑料晶体具有大多数分子固体所共有的光谱特征。压力诱导的无序-有序相变约0.5 GPa已分析使用晶体学和拉曼数据在低温阶段。进一步压缩到8 GPa以上时，观察到其他特征。提出了两种不同的假设来解释这些功能。
Raman scattering experiments have been performed on orientationally disordered crystal chloroadamantane under pressure. Investigations carried out in both the lattice-mode and the internal-mode regions have shown that this plastic crystal exhibits spectroscopic features common to most molecular solids. The pressure-induced disorder–order phase transition around 0.5 GPa has been analysed using crystallographic and Raman data in the low-temperature phase. Additional features were observed with further compression above 8 GPa. Two different hypotheses are proposed to explain these features.