高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (11): 2256.doi: 10.7503/cjcu20150645

• 物理化学 • 上一篇    下一篇

非平衡溶剂效应的约束平衡理论及在电子转移中的应用

明美君1, 毕婷君2, 李象远2()   

  1. 1. 四川大学化学学院, 成都 610065
    2. 四川大学化学工程学院, 成都 610065
  • 收稿日期:2015-08-14 出版日期:2015-11-10 发布日期:2015-10-19
  • 作者简介:联系人简介: 李象远, 男, 博士, 教授, 博士生导师, 主要从事应用量子化学研究. E-mail:xyli@scu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 91441132)资助

Nonequilibrium Solvation Theory Based on Constrained Equilibrium Principle and Its Applications

MING Meijun1, BI Tingjun2, LI Xiangyuan2,*()   

  1. 1. College of Chemistry, Sichuan University, Chengdu 610065, China
    2. College of Chemical Engineering, Sichuan University, Chengdu 610065, China
  • Received:2015-08-14 Online:2015-11-10 Published:2015-10-19
  • Contact: LI Xiangyuan E-mail:xyli@scu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.91441132)

摘要:

基于经典热力学约束平衡方法, 采用新非平衡溶剂化理论研究了NpO2+-NpO22+体系电子转移反应的溶剂重组能, 采用限制密度泛函理论实现电荷定域, 用积分方程可极化连续介质模型获得水溶液中极化电荷. 计算结果表明, 新双球模型和数值解都给出了一致的溶剂重组能理论计算值.

关键词: 非平衡溶剂化, 约束平衡态, 电子转移, 溶剂重组能

Abstract:

A novel nonequilibrium solvation theory established recently by the authors was introduced. Differing from the traditional ones, the present theory was based on the constrained equilibrium principle of classical thermodynamics. The calculations of solvent reorganization energy were performed with the electron transfer system of NpO2+-NpO22+ as an example. The constrained density functional theory was adopted for the charge localization of the system and IEF-PCM was used for the gain of polarization charges in water. Both two-sphere model and numerical solution give consistent and reasonable solvent reorganization energies.

Key words: Nonequilibrium solvation, Constrained equilibrium state, Electron transfer, Solvent reorganization energy

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