Orientational Order of Guest H2S Molecules in β-Quinol Clathrate

Shoji Hirokawa, Tomoko Imasaka

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

The orientational ordering of guest H2S molecules is studied using a mean-field theory on the basis of quantum statistical mechanics; it is assumed that the guest system is a quenched one consisting of a normal mixture of ortho and para H2S, and that the guest molecules which are influenced by a crystalline field, of which strength is estimated from far-infrared spectra, couple with one another via dipolar interactions. A phase diagram based on an effective dipole moment p is obtained. It shows: If p = 0.800D, a second-order transition between a partially disordered and a disordered phase occurs at T = 15.2 K, and the temperature dependence of the heat capacity well coincides with experiment; if p < 0.778D, no cooperative order is expected.

元の言語英語
ページ(範囲)3843-3850
ページ数8
ジャーナルjournal of the physical society of japan
57
発行部数11
DOI
出版物ステータス出版済み - 1 1 1988

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clathrates
statistical mechanics
molecules
dipole moments
infrared spectra
phase diagrams
specific heat
temperature dependence
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Orientational Order of Guest H2S Molecules in β-Quinol Clathrate. / Hirokawa, Shoji; Imasaka, Tomoko.

:: journal of the physical society of japan, 巻 57, 番号 11, 01.01.1988, p. 3843-3850.

研究成果: ジャーナルへの寄稿記事

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