Title of article
Guest disorder and high pressure behavior of argon hydrates
Author/Authors
Yang، نويسنده , , L. and Tulk، نويسنده , , C.A. and Klug، نويسنده , , D.D. and Chakoumakos، نويسنده , , B.C. and Ehm، نويسنده , , L. and Molaison، نويسنده , , J.J. and Parise، نويسنده , , J.B. and Simonson، نويسنده , , J.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
6
From page
104
To page
109
Abstract
The structure of argon hydrate was studied at ambient pressure and low temperature, and between 1.7 and 4.2 GPa at 295 K. This analysis produced a single Ar guest atom, positionally disordered off-center in the large cages of sII. Above 1.7 GPa Ar clathrate transformed to a mixture of a body-centered orthorhombic filled-ice phase, which can be viewed as a polytype of ice-Ih, and high pressure forms of pure ice. The guest disorder is further substantiated by analysis of the guest to host ratio in this high pressure filled-ice structure. The bulk modulus of Ar filled-ice found to be 11.7 ± 0.4 GPa.
Journal title
Chemical Physics Letters
Serial Year
2010
Journal title
Chemical Physics Letters
Record number
1928242
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