Simulating Monovalent and Divalent Ions in Aqueous Solution Using a Drude Polarizable Force Field.

Simulating Monovalent and Divalent Ions in Aqueous Solution Using a Drude Polarizable Force Field.
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DOI:
10.1021/ct900576a
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发表时间:
2010
影响因子:
5.5
通讯作者:
Roux, Benoit
Roux, Benoit
中科院分区:
化学1区
文献类型:
--
作者:
Yu, Haibo;Whitfield, Troy W.;Harder, Edward;Lamoureux, Guillaume;Vorobyov, Igor;Anisimov, Victor M.;MacKerell, Alexander D., Jr.;Roux, Benoit

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水溶液中离子溶剂化的精确表示对于广泛的物理和生物过程的有意义的计算机模拟至关重要。介绍了基于经典Drude振子的极化模型,并对大量单原子离子进行了参数化,包括碱金属阳离子(Li+、Na+、K+、Rb+和Cs+)和碱土金属阳离子(Mg 2+、Ca 2+、Sr 2+和Ba 2+)沿着Zn 2+和卤素阴离子(F−、Cl−、Br−和I−)。结合可极化SWM 4-NDP水模型[Lamoureux等人,化学物理快报418,245(2006)],与实验测量的水溶液本体热力学性质和小离子-水簇的能量学的广泛分类一致。在无限稀释的水溶液中的离子模型的结构和动力学性质。
An accurate representation of ion solvation in aqueous solution is critical for meaningful computer simulations of a broad range of physical and biological processes. Polarizable models based on classical Drude oscillators are introduced and parametrized for a large set of monoatomic ions including cations of the alkali metals (Li+, Na+, K+, Rb+ and Cs+) and alkaline earth elements (Mg2+, Ca2+, Sr2+ and Ba2+) along with Zn2+ and halide anions (F−, Cl−, Br− and I−). The models are parameterized, in conjunction with the polarizable SWM4-NDP water model [Lamoureux et al., Chem. Phys. Lett. 418, 245 (2006)], to be consistent with a wide assortment of experimentally measured aqueous bulk thermodynamic properties and the energetics of small ion-water clusters. Structural and dynamic properties of the resulting ion models in aqueous solutions at infinite dilution are presented.
DOI: 10.1016/0009-2614(77)80016-x
发表时间: 1977-01-01
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