Full configuration-interaction and coupled-cluster calculations of the indirect spin-spin coupling constant of BH

被引:32
作者
Auer, AA
Gauss, J [1 ]
Pecul, M
机构
[1] Johannes Gutenberg Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany
[2] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland
关键词
D O I
10.1016/S0009-2614(02)01825-0
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
Full configuration-interaction calculations of the indirect spin-spin coupling constant of the BH molecule have been carried out in order to investigate the performance of various coupled-cluster (CC) methods in the treatment of electron-correlation effects, while the corresponding basis set convergence is analyzed in CC singles and doubles calculations. Assuming additivity of correlation and basis set effects, a theoretical estimate of 50.67 Hz is obtained for the (BH)-B-11-H-1 spin-spin coupling constant. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:172 / 176
页数:5
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