The temperature dependence of the anharmonic properties of crystalline naphthalene-d8
The temperature dependence of the anharmonic properties of crystalline naphthalene-d8
复制标题
结晶萘-d8非简谐性质的温度依赖性
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
G. Pawley
中科院分区：
文献类型：
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作者：
E. Baharie;G. Pawley
通过粉末样品在 5 至 293 K 温度范围内的中子衍射，可以相当准确地测量全氘萘中晶胞的温度变化和分子取向。测量是在 ILL Grenoble 的 D1A 和 D1B 仪器上进行的。结果是通过使用 EDINP 程序进行约束细化获得的。对背景散射的基本问题进行了仔细研究，得出的结论是，即使存在这样的问题，也可以通过该技术获得刚体热运动张量的良好测量结果。这些结果对于该系统的晶格动力学研究具有重要意义。
The temperature variation of the unit cell and molecular orientation in perdeuteronaphthalene is measured with considerable accuracy by neutron diffraction from a powder sample in the temperature range from 5 to 293 K. Measurements were done on the D1A and D1B instruments at ILL Grenoble. Results were obtained through constrained refinements using the program EDINP. The fundamental problem of background scattering is scrutinized, concluding that even with such a problem it is possible to obtain good measurements of rigid-body thermal-motion tensors by this technique. These results are of importance for the lattice dynamical studies of this system.