PHYS 685 |
| In many relevant situations, water is not in its bulk form but instead attached to some substrates or filling some cavities. In this paper, we present the more recent up to date account of the structure and dynamics of confined or interfacial water as compared with that of bulk water. Among the various used techniques, neutron scattering is a powerful tool to study translational and rotational diffusion as well as vibrational density of states of confined water. Selected examples involving water confined in porous media, adsorbed on surface of ionic crystals and at surface of biological molecules are presented. In particular, we have shown that after exhibiting a glass transition at 165 K, interfacial water experiences a first order liquid-liquid transition at 240 K from a low density to a high density liquid. |
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Hydration: From Clusters to Aqueous Solution
8:20 AM-12:00 PM, Thursday, August 23, 2007 BCEC -- 159, Oral
Division of Physical Chemistry |