Tuesday, May 21, 2013

1305.4246 (Chang Q Sun)

Scaling relation for the bond length, mass density, and packing order of
water ice

Chang Q Sun
The packing order of molecules and the distance between adjacent oxygen atoms (dOO) in water and ice are most basic yet puzzling. Here we present a scaling solution for this purpose based only on the mass density (gcm-3), (Equation) where dL is the length ({\AA}) of the O:H van der Waals bond and dH the H-O polar-covalent bond projecting on the O---O line. Validated by the measured proton symmetrization of compressed ice, dOO of water and ice, and dOO expansion at water surface, this solution confirms that the fluctuated, tetrahedrally-coordinated structure is unique for water ice.
View original: http://arxiv.org/abs/1305.4246

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