Electron binding energies in linear dipole-bound (HCN)n- (n=2-5) anions

被引:23
作者
Gutowski, M [1 ]
Skurski, P
机构
[1] Pacific NW Natl Lab, Richland, WA 99352 USA
[2] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
[3] Univ Gdansk, Dept Chem, PL-80952 Gdansk, Poland
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(98)01377-3
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
The (HCN)(2)(-) anion has been studied at the coupled cluster level of theory with single, double, and non-iterative triple excitations whereas equilibrium structures and electron binding energies for larger linear (HCN)(n)(-) (n = 3-5) clusters have been determined at the second-order Moller-Plesset (MP2) level. The adiabatic electron affinity of (HCN)(2) was found to be 399 cm(-1) and trends in physically meaningful components of electron binding energy, such as static Coulomb, dispersion, and polarization stabilizations, were determined for this series of clusters. The (2)Pi dipole-bound anionic state was found for the pentamer with the MP2 vertical electron detachment energy of 92 cm(-1). (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:331 / 338
页数:8
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