Dynamics in the hydration shell of Hg2+ ion:: classical and ab initio QM/MM molecular dynamics simulations

被引：38

作者：

Kritayakornupong, C ^{[1
]}

Plankensteiner, K ^{[1
]}

Rode, BM ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Gen Inorgan & Theoret Chem, Dept Theoret Chem, A-6020 Innsbruck, Austria

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 371卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(03)00301-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Classical and ab initio QM/MM molecular dynamics simulations have been performed for Hg2+ in aqueous solution. The dynamical properties were evaluated in terms of librational and vibrational motions of water molecules in the first and second hydration shell. The frequencies of rotation of water molecules in the first shell are blue-shifted compared to those of pure liquid water. Water exchange between first and second hydration shell occurs with a mean ligand residence time of 87 ps, in good agreement with the experimentally estimated value. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：438 / 444

页数：7

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