On Water Density Fluctuations with Helices of Hydrogen Bonds

Abstract

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.

Hydrogen bonds and dynamics of liquid water and alcohols

“…In [62], a formula was obtained for the frequency of coherent vibrations of n protons in a spiral chain of tetrahedral HBs:…”

Aqueous Nanofluid as a Two-Phase Coolant for PWR

“…One can expect that water molecules have enough time for rebuilding hydrogen bonds in a dense part of water density fluctuations due to very fast librations and rotations of them in liquid phase. From this, the model for instant dense clusters [22] is built with helices of hydrogen bonds (see Figure 1(b)). All angles between them are equal to 106.8 • .…”

“…From this and only this point of view, the liquid water is considered as a twostructural fluid by dynamic forming the two topological kinds of clusters in density fluctuations. The mole fraction of helical clusters in liquid water can amount to 0.6 [22].…”

“…They can stimulate coherent proton vibrations in the coil of helical cluster if these protons are ordered in the helix (see Figure 1(b)). A spectral series, v(n), of coherent proton vibrations in the helical cluster as a function of watermolecules number, n, is [22]…”

Change in the optical properties of water under the influence of a constant electric fields

“…В работе [9] теоретически обосновали образование в тетраэдрической сетке водородных связей кластеров в виде спиральных цепочек из тетраэдров, в которых протоны совершают когерентные колебания. Очевидно, что образованию спиральных кластеров будет способствовать внешнее электромагнитное излучение, резонирующее с частотой колебаний протонов.…”