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A transferable ab initio based force field for aqueous ions

机译:可转移的从头算起的水性离子力场

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We present a new polarizable force field for aqueous ions (Li ~+, Na ~+, K ~+, Rb ~+, Cs ~+, Mg ~(2+), Ca ~(2+), Sr ~(2+), and Cl ~-) derived from condensed phase ab initio calculations. We use maximally localized Wannier functions together with a generalized force and dipole-matching procedure to determine the whole set of parameters. Experimental data are then used only for validation purposes and a good agreement is obtained for structural, dynamic, and thermodynamic properties. The same procedure applied to crystalline phases allows to parametrize the interaction between cations and the chloride anion. Finally, we illustrate the good transferability of the force field to other thermodynamic conditions by investigating concentrated solutions.
机译:我们提出了一种新的水离子极化能场(Li〜+,Na〜+,K〜+,Rb〜+,Cs〜+,Mg〜(2+),Ca〜(2+),Sr〜(2+ )和Cl〜-)从冷凝相从头算得出。我们使用最大局部化的Wannier函数以及广义力和偶极匹配程序来确定整个参数集。然后,仅将实验数据用于验证目的,并且在结构,动力学和热力学特性方面取得了良好的一致性。应用于结晶相的相同步骤可以使阳离子与氯离子之间的相互作用参数化。最后,我们通过研究浓缩溶液来说明力场向其他热力学条件的良好传递性。

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