A comparative post-Hartree-Fock and density functional theory study of monochalcogenide diatomic molecules

被引:6
|
作者
Rekhis, Maamar [2 ]
Ouamerali, Ourida [2 ]
Joubert, Laurent [1 ]
Tognetti, Vincent [1 ]
Adamo, Carlo [1 ]
机构
[1] Ecole Natl Super Chim Paris, CNRS, Lab Electrochim & Chim Analyt, UMR 7575, F-75231 Paris 05, France
[2] Univ Sci & Technol Houari Boumedienne, Fac Chim, Lab PCTCI, Bab Ezzouar, Alger, Algeria
来源
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM | 2008年 / 863卷 / 1-3期
关键词
DFT; monochalcogenide diatomics; post-HF;
D O I
10.1016/j.theochem.2008.05.018
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
In this paper, we present a comparative post-Hartree-Fock and density functional theory Study of monochalcogenide diatomic molecules of the XSe and XTe types (where X atom belongs to group 15), including neutral and cationic species. The corresponding bond lengths, vibrational frequencies and ionization potentials are calculated and compared with experimental data or advanced post-Hartree-Fock methods. The choice of the basis sets is also discussed. Finally, dissociation energies of the cationic and neutral species are Computed and discussed. (C) 2008 Elsevier B.V. All rights reserved.
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页码:79 / 83
页数:5
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