Song Xueyu
Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
J Chem Phys. 2009 Jul 28;131(4):044503. doi: 10.1063/1.3187147.
Motivated by our recent proposition on the possibility of using dielectric continuum models to interpret experimental measurements of solvation dynamics in room temperature ionic liquids [J. Phys. Chem. A 110, 8623 (2006)], some detailed simulation studies are performed to test the validity of our proposition. From these simulation studies, it seems to be justified that an extended Debye-Hückel continuum model can be used to understand the solvation dynamics of ionic fluids. The theoretical underpinning of such an extended Debye-Hückel model is presented from the general dispersion relation in electrodynamics. The connection with the static extension from the dressed ion theory of electrolyte solutions is also discussed. Such a connection between the Debye-Hückel theory and the dispersion relation may be exploited to enhance our understanding of the electric double layer problem not only for the static case but also for dynamic situations.
受我们最近关于使用介电连续介质模型解释室温离子液体中溶剂化动力学实验测量可能性的提议的启发[《物理化学杂志A》110, 8623 (2006)]，进行了一些详细的模拟研究以检验我们提议的有效性。从这些模拟研究来看，可以合理地认为扩展的德拜 - 休克尔连续介质模型可用于理解离子流体的溶剂化动力学。这种扩展的德拜 - 休克尔模型的理论基础是从电动力学中的一般色散关系推导出来的。还讨论了它与电解质溶液中穿衣离子理论的静态扩展之间的联系。德拜 - 休克尔理论与色散关系之间的这种联系不仅可以用于增强我们对静态情况下双电层问题的理解，也可用于动态情况。
