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Distinct Dynamic Behaviors of Water Molecules in Hydrated Pores

AuthorsPérez-Hernández, Natalia ; Pérez, Cirilo ; Rodríguez, Matias L.; Foces-Foces, Concepción ; Roux, María Victoria ; Morales, Ezequiel Q.; Buntkowsky, Gerd; Limbach, Hans-Heinrich; Martín, Julio D.
KeywordsWater molecules
Water channels
Issue Date15-Jul-2006
PublisherAmerican Chemical Society
CitationJournal of the American Chemical Society 128(31): 10008-10009 (2006)
AbstractWater molecules confined inside narrow pores are of great importance in understanding the structure, stability, and function of water channels. Here we report that besides the H-bonding water that structures the pore, the permanent presence of a significant, fast-moving fraction of incompletely H-bonded water molecules inside the pore should control the free entry and exit of water. This is achieved by means of complementary DSC and solid-state NMR studies. We also present compelling evidence from X-ray diffraction data that the cluster formed by six water molecules in the most stable cage-like structure is sufficiently hydrophobic to be stably adsorbed in a nonpolar environment.
Description2 páginas, 2 figuras, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.1021/ja063223j
Appears in Collections:(IQFR) Artículos
(IIQ) Artículos
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