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Liquid-liquid phase transition in water
Science China Physics, Mechanics & Astronomy, 2014Water shows anomalies di erent from most of other materials. Di erent sceniaros have been proposed to explain water anomalies, among which the liquid-liquid phase transition (LLPT) is the most discussed one. It attributes water anomalies to the existence of a hypothesized liquid-liquid critical point (LLCP) buried deep in the supercooled region.
ZhaoRu Sun +3 more
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Density Fluctuations in Liquid Water
Physical Review Letters, 2011The density distributions and fluctuations in grids of varying size in liquid water at ambient pressure, both above the freezing point and in the supercooled state, are analyzed from the trajectories obtained from large-scale molecular dynamics simulations.
English N.J., Tse J.S.
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Liquid-Liquid Critical Point in Heavy Water
Physical Review Letters, 2000According to the liquid-liquid critical-point hypothesis about water, two liquid waters exist at low temperatures and are supposed to be merged at a critical point. The low-temperature metastable melting curves of D2O ices have been measured. It is found that the melting curve of D2O ice III is smoothly curved around 25 MPa and 238 K, whereas the ...
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Dipolar correlations in liquid water
The Journal of Chemical Physics, 2014We present an analysis of the dipolar correlations in water as a function of temperature and density and in the presence of simple ionic solutes, carried out using molecular dynamics simulations and empirical potentials. We show that the dipole-dipole correlation function of the liquid exhibits sizable oscillations over nanodomains of about 1.5 nm ...
Cui, Zhang, Giulia, Galli
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Dynamical states in liquid water
Journal of Molecular Liquids, 1993Abstract In this paper we present a review of several investigations performed on H 2 O in normal and supercooled phase, by different light scattering techniques. The obtained results give indications of the growth of some extended structure at low temperature and in the supercooled liquid phase. Such phenomenon reflects in the behaviour of a “ slow ”
ALIOTTA F, MAISANO, Giacomo
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Liquid-liquid critical point of water
Science, 2020Chemical Physics Despite a broad range of experimental observations that indirectly point out the possible existence of a liquid-liquid phase transition in deeply supercooled water, no unambiguous experiment has shown this yet. The challenges of performing experiments under such conditions are associated with the inevitable rapid crystallization of the
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The Liquid Water−Benzene System
The Journal of Physical Chemistry A, 2006The 500 MHz NMR spectra of water-benzene solution near saturation at 303.15, 323.15, and 343.15 K indicate that there is a proton-proton exchange between the water and benzene molecules. In the solution water appears to be present as a dimer attached to the benzene pi cloud on one side of each of the two (initially degenerate) fundamental energy levels,
Maximo, Baron, Valdemar J, Kowalewski
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Self-diffusion in liquid water
The Journal of Chemical Physics, 1977The behavior of the self-diffusion coefficient in water, along the coexistence curve for −31 °C⩽T⩽350 °C, is explained in terms of local fluctuations of free volume, energy per molecule, and ’’percentage of broken H bond’’ as derived from ir data. Our theoretical expression agrees with the experimental data, within their errors, in the overall range we
RICCI F. P. +2 more
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Physical Review E, 1993
Both inelastic-neutron-scattering experiments and computer simulations have established that liquid water can support a longitudinal mode propagating with a velocity much larger than the ordinary speed of sound. The physics behind this peculiar behavior is studied by a comprehensive microscopic approach.
Balucani, Umberto +3 more
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Both inelastic-neutron-scattering experiments and computer simulations have established that liquid water can support a longitudinal mode propagating with a velocity much larger than the ordinary speed of sound. The physics behind this peculiar behavior is studied by a comprehensive microscopic approach.
Balucani, Umberto +3 more
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Multiple Phases of Liquid Water
ChemPhysChem, 2008AbstractThe history of the study of the anomalies of liquid water, from the 17th century up to the present, is reviewed and the current view on the origin of these anomalies is summarized. The hypothesis of the multiple liquid–liquid transitions of water in the supercooled region is consistent with the available experimental and simulation data and ...
Ivan, Brovchenko, Alla, Oleinikova
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