title: Distinct dynamic behaviors of water molecules in hydrated pores.
abstract: Water 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.
authors.affiliation: Instituto de Bioorganica, Universidad de La Laguna, CSIC, Ctra. Vieja de La Esperanza 2, 38206 La Laguna, Tenerife, Spain.
authors.forename: Martín
authors.initials: M
authors.lastname: Febles
authors.forename: Natalia
authors.initials: N
authors.lastname: Pérez-Hernandez
authors.forename: Cirilo
authors.initials: C
authors.lastname: Pérez
authors.forename: Matías L
authors.initials: ML
authors.lastname: Rodríguez
authors.forename: Concepción
authors.initials: C
authors.lastname: Foces-Foces
authors.forename: María Victoria
authors.initials: MV
authors.lastname: Roux
authors.forename: Ezequiel Q
authors.initials: EQ
authors.lastname: Morales
authors.forename: Gerd
authors.initials: G
authors.lastname: Buntkowsky
authors.forename: Hans-Heinrich
authors.initials: HH
authors.lastname: Limbach
authors.forename: Julio D
authors.initials: JD
authors.lastname: Martín
mesh_terms: D018360:Crystallography, X-Ray; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water