Direct measure of the hydration number of aqueous methane

被引:70
作者
Dec, SF [1 ]
Bowler, KE [1 ]
Stadterman, LL [1 ]
Koh, CA [1 ]
Sloan, ED [1 ]
机构
[1] Colorado Sch Mines, Ctr Res Hydrates, Dept Chem Engn, Golden, CO 80401 USA
关键词
D O I
10.1021/ja055283f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A hydration number of 20 has been measured for aqueous CH4 in the temperature range 273-298 K on the basis of the simultaneous observation of the 13C isotropic resonance lines of CH4 in both aqueous solution and the dodecahedral cage of CH4 structure I hydrate. Additional experimental evidence and analysis reported in this paper suggest that the dominant aqueous hydration number of methane is 20. Copyright © 2006 American Chemical Society.
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页码:414 / 415
页数:2
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