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水分子的体积、间距、堆积方式、和质量密度的标度法则

已有 2693 次阅读 2013-5-18 18:08 |个人分类:水之魂|系统分类:科研笔记|关键词:水,结构| 结构

Scaling of H2O-Sciencnet.pdf

 

The packing order of molecules and the distancebetween adjacent oxygen atoms (dOO) in water and ice are most basic yetpuzzling. Here we present a scaling solution for this purpose based only on themass density r(gcm-3),

where dLis the length (Å) of the O:H van der Waals bond and dH the H-Opolar-covalent bo​nd projecting on the O---O line. Validated by the measured proton symmetrization of compressed ice, dOO of water and ice, and dOOexpansion at water surface, this solution confirms that: i) the fluctuated,tetrahedrally-coordinated  structure is unique for water ice; ii) Inter-electron-pair repulsion mediate the relxation of the hydrogen bond; and iii) supersolidity of water molecules with fewer than four neighbors .




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