Neutron diffraction study of carbon dioxide clathrate hydrate

被引：55

作者：

Ikeda, T ^{[1
]}

Yamamuro, O

Matsuo, T

Mori, K

Torii, S

Kamiyama, T

Izumi, F

Ikeda, S

Mae, S

机构：

[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan

[2] Osaka Univ, Grad Sch Sci, Dept Chem, Osaka 5600043, Japan

[3] Grad Univ Adv Studies, Dept Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[4] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[5] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

[6] KEK, High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1999年 / 60卷 / 8-9期

关键词：

inorganic compounds; neutron scattering; crystal structure;

D O I：

10.1016/S0022-3697(99)00165-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Neutron powder diffraction data of deuterated CO2 clathrate hydrate were measured at 7, 48, 98, 148, and 213 K. Rietveld analysis revealed that the thermal parameters of the atoms of the CO2 molecule in the tetrakaidecahedral cage are very large and almost constant in the whole temperature range. This result indicates that the CO2 molecule in the tetrakaidecahedral cage rotates rapidly even at low temperatures. The interaction between the CO2 molecule and the deuterium atoms is so strong to provide the site dependence of the thermal parameters of the deuterium atoms. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1527 / 1529

页数：3

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