On Water Density Fluctuations with Helices of Hydrogen Bonds

An adaptive model is developed here for the liquid water density fluctuations as momentary dense clusters with helices of hydrogen bonds and nondense tetrahedral clusters of ice. This model can be useful for explanation of liquid water structural anomalies including the high quantity of hydrogen bon...

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Bibliographic Details
Main Authors: Alexander Shimkevich, Inessa Shimkevich
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2011/871231
Description
Summary:An adaptive model is developed here for the liquid water density fluctuations as momentary dense clusters with helices of hydrogen bonds and nondense tetrahedral clusters of ice. This model can be useful for explanation of liquid water structural anomalies including the high quantity of hydrogen bonds with quasitetrahedral orientation in the nonordered liquid water. The topology of such clusters is essentially differed from the one of the crystalline ice. From this and only this point of view, the liquid water can be considered as a two-structural fluid by dynamic forming the two topological kinds of clusters as a consequence of condensed-matter density fluctuations. Another feature of the dense-water-part clusters is helical ordering of protons which can realize coherent vibrations. A spectral series of such vibrations is determined as a function of the number of molecules into the helical cluster.
ISSN:1687-8108
1687-8124