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Generic force fields for ionic liquids

delete2014-04-01
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PRE
AI
F
Florian Dommert *
K
Katharina Wendler
B
Baofu Qiao
L
Luigi Delle Site
C
Christian Holm
DOI:10.1016/j.molliq.2013.09.001delete
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摘要

摘要

En 中文
Ionic liquids have been intensively studied during the last decade, but many questions still remain unresolved. From the computational side there is the lack of good transferable force fields for molecular simulations that would allow accurate theoretical predictions and interpretations of the properties of ionic liquids. Within this article a method is described that allows for the derivation of partial charges for ionic liquids since they play a particular important role, particularly for a liquid that consists entirely of ions. Our partial charges are carefully determined in such a way that they incorporate in an average way the influence of polarization effects of the neighboring ions in a bulk situation thereby reducing the total ionic charge to values less than one. When combined with our recently introduced method for the optimization of the short-range interactions [1] we have a well described route to develop generic force fields for ionic liquids. In this article we describe our results for the partial charges for the three imidazolium based liquids [MMIM](+), [EMIM](+), and [BMIM](+) for three different anions. (C) 2013 Elsevier B.V. All rights reserved.
Keyword:
Ionic liquids
Imidazolium
Multiscale modeling
Classical force fields
Electronic DFT

期刊

Journal of Molecular Liquids 封面图
Journal of Molecular Liquids
IF:
5.2
论文数:
2.5W
被引数:
9.0W

机构

U
University of Stuttgart
学者数:
1.1W
论文数: 9.4K
被引数: 1.3W
F
Free University of Berlin
学者数:
3.8W
论文数: 3.2W
被引数: 51
M
Max Planck Society
学者数:
8.2W
论文数: 7.7W
被引数: 3.3W
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引用论文

引用论文

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Ionic liquids studied across different scales: A computational perspective
err2012-01-01
err104
PREAI
errWendler, Katharina; Dommert, Florian; Zhao, Yuan Yuan; Berger, Robert; Holm, Christian; Delle Site, Luigi
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Towards multiscale modeling of ionic liquids: From electronic structure to bulk properties
err2010-03-01
err54
PREAI
errDommert, Florian; Schmidt, Jochen; Krekeler, Christian; Zhao, Yuan Yuan; Berger, Robert; Delle Site, Luigi; Holm, Christian
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