Density and energy distribution in water and organic solvents: a Molecular Dynamics study (CROSBI ID 133943)
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Zoranić, Larisa ; Sokolić, Franjo ; Perera, Aurélien
engleski
Density and energy distribution in water and organic solvents: a Molecular Dynamics study
The density fluctuations in simulated neat water, methanol and acetone are studied from the radial and site-site distribution functions, as well as the corresponding energy distribution functions. The comparison of the running integrals of these two quantities allows to elucidate the peculiarities of each system in what concerns the infuence of the local hydrogen bonding on the microheterogeneity of the system. It is shown that the correlations beyond the first neighbours reproduce accurately the density fluctuations, despite the constant-N simulation constraint, and match the experimental value for all models and systems studied herein.
Kirkwood-Buff integrals; density fluctuation; MD study
EMLG/JMLG 2006, Barcelona, Spain 2006, Edited by Elvira Guardia
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