Orientational Disorder in Adamantane and Adamantanecarboxylic Acid.
Orientational Disorder in Adamantane and Adamantanecarboxylic Acid.
复制标题
金刚烷和金刚烷甲酸的定向障碍。
DOI:
10.1002/cphc.201601219
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Beake EO
中科院分区:
文献类型:
--
作者:
Beake EO
The molecular crystals adamantane, C10H16, and adamantanecarboxylic acid, C10H15COOH, undergo order–disorder phase transitions at 208 and 250 K, respectively. Reverse Monte Carlo refinement of total neutron scattering data collected from deuterated samples immediately above these phase transitions shows that the high‐temperature phases are well described by models in which the adamantyl groups are disordered over two sites. No correlation between the orientations of neighbouring molecules is observed. These results demonstrate that the intermolecular potential energy of these materials depends strongly on the orientation of the reference molecule but only very weakly on the orientations of its neighbours.
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2002
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