首页> 外文期刊>The Journal of Chemical Physics >Two-center potential correlations and its use to determine effective ion-ioninteractions and dielectric permittivities in dipolar solvents
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Two-center potential correlations and its use to determine effective ion-ioninteractions and dielectric permittivities in dipolar solvents

机译:两中心电势相关性及其在确定偶极溶剂中有效的离子-离子相互作用和介电常数方面的用途

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摘要

General expressions for two-center electrostatic potential correlations and its use to determine (i) theeffective interaction between simple ions in a dipolar solvent and (ii) the dielectric permittivity ofthe solvent are proposed. Such two-center potential correlations were determined from Monte Carlo simulations of spherically confined dipolar particles embedded in a dielectric medium described byusing an image charge approximation. The deduced dielectric permittivities increased with increasing dipolar moment, and at large dipole moments the effective interaction displayed anattractive first minimum
机译:提出了两中心静电势相关性的一般表达式及其在确定(i)双极性溶剂中简单离子之间的有效相互作用和(ii)溶剂介电常数方面的用途。通过使用图像电荷近似描述的嵌入在电介质中的球形受限偶极粒子的蒙特卡罗模拟,确定了这样的两个中心电位相关性。推导的介电常数随偶极矩的增加而增加,在大偶极矩时,有效相互作用表现出有吸引力的第一最小值

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