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Direct Measure of the Hydration Number of Aqueous Methane

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journal contribution
posted on 18.01.2006, 00:00 by Steven F. Dec, Kristin E. Bowler, Laura L. Stadterman, Carolyn A. Koh, E. Dendy Sloan
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.

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