期刊
CHEMICAL PHYSICS LETTERS
卷 507, 期 1-3, 页码 80-83出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2011.02.064
关键词
-
资金
- Hungarian Basic Research Fund (OTKA) [K083529]
The effect of the applied trajectory length on the convergence of the static dielectric constant was examined for the SPC/E water model with different system sizes. Very long simulation times of 6-8 ns were employed in order to track the convergence of this property. Temperature dependence and isotope effects were also investigated. A simulation for the polarizable SWM4-DP model was also carried out to compare the effect of different potential models. It is clearly shown that trajectories shorter than about 6 ns are not sufficient for a sufficiently accurate determination of the dielectric constant of these water models. (C) 2011 Elsevier B.V. All rights reserved.
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