Energies of interaction and other properties of clathrate compounds
Energies of interaction and other properties of clathrate compounds
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笼形化合物的相互作用能和其他性质
DOI：
10.1098/rspa.1954.0112
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发表时间：
1954
期刊：
影响因子：
--
通讯作者：
R. Richards
中科院分区：
文献类型：
--
作者：
D. Evans;R. Richards
通过量热法测定了β-羟基苯酚与氩气、氧气、氮气、氯化氢、溴化氢、甲酸和甲醇的笼形化合物的形成热。对于氩和氧化合物，确定了成分差异很大的样品的形成热，并且它们随着填充的可用空间的分数线性变化。利用直接获得的α-和β-对苯二酚之间的能量差或通过对氩和氧化合物的测量值外推获得的能量差，确定了封闭分子与β-对苯二酚笼相互作用的能量。它们的值根据封闭分子的极化率和发生的分子间接触的数量来解释。还简要讨论了形成的自由能以及二氧化硫和氧笼形化合物的颜色。
Heats of formation of clathrate compounds of β-quinol with argon, oxygen, nitrogen, hydrogen chloride, hydrogen bromide, formic acid and methanol have been determined calorimetrically. For the argon and oxygen compounds, the heats of formation were determined for samples of widely differing composition, and they vary linearly with the fraction of available spaces filled. Using the energy difference between α- and β-quinol obtained directly or by extrapolation of the measurements on the argon and oxygen compounds, the energies of interaction of the enclosed molecules with the β-quinol cage have been determined. Their values are interpreted in terms of the polarizabilities of the enclosed molecules and the number of intermolecular contacts occurring. The free energies of formation, and the colours of the sulphur dioxide and oxygen clathrate compounds are also discussed briefly.