alexa A new clathrate hydrate structure
Environmental Sciences

Environmental Sciences

Journal of Petroleum & Environmental Biotechnology

Author(s): JOHN A RIPMEESTER

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Clathrate hydrates, ice-like host–guest systems containing guest molecules in cages of hydrogen-bonded water molecules exist in three well-characterized cubic forms, and a less well-characterized tetragonal form1,2. On the basis of 2H and l29Xe NMR measurements and X-ray and neutron powder diffraction results, we now report a new hexagonal hydrate structure requiring both large and small guest molecules to stabilize the structure. This hydrate is expected to be isostructural with the hexagonal clathrasil dodecasil-lH (see ref. 14 for clathrasil nomenclature). As for the cubic clathrate hydrates, the new hydrate structure may occur naturally.

This article was published in Nature and referenced in Journal of Petroleum & Environmental Biotechnology

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