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A Drude model approach to dispersion interactions in dipole-bound anions.

机译:一种在偶极子结合的阴离子中进行分散相互作用的Drude模型方法。

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摘要

The problem of the binding of an excess electron to polar molecules and their clusters with sufficient attractive electrostatic potential has long fascinated researchers. Although excess electrons bound to such attractive potential tend to be very extended spatially and to have little spatial overlap with the valence electrons of the neutral molecules, inclusion of electron correlation effects is essential for quantitatively describing the electron binding. The major electron correlation contribution may be viewed as a dispersion interaction between the excess electron and the electrons of the molecule or cluster. Intrigued by the success of classical Drude model treatment of neutral atoms or molecules, a new one-electron model based on Drude oscillator was introduced, and its application on HCN, (HCN) 2, HNC, (HNC)2 and (H2O)n was studied. The newly developed water potential is used in carrying out parallel-tempering Monte-Carlo simulations of the (H2O)6 cluster.
机译:长期以来,研究人员一直着迷于使多余的电子与极性分子及其簇结合并具有足够诱人的静电势的问题。尽管与这种吸引电位结合的过量电子趋于在空间上非常扩展,并且与中性分子的价电子几乎没有空间重叠,但是包含电子相关效应对于定量描述电子结合至关重要。主要的电子相关性贡献可被视为过量电子与分子或簇的电子之间的色散相互作用。受到经典中子原子或分子的Drude模型处理的成功的启发,提出了一种基于Drude振荡器的新单电子模型,并将其应用于HCN -,(HCN) 2 < / sub> -,HNC -,(HNC) 2 -和(H 2 O) n -。新开发的水势用于对(H 2 O) 6 -团簇进行平行回火蒙特卡罗模拟。

著录项

  • 作者

    Wang, Feng.;

  • 作者单位

    University of Pittsburgh.;

  • 授予单位 University of Pittsburgh.;
  • 学科 Chemistry Physical.
  • 学位 Ph.D.
  • 年度 2003
  • 页码 p.241
  • 总页数 175
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理化学(理论化学)、化学物理学;
  • 关键词

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