A BSSE-FREE SCF ALGORITHM FOR INTERMOLECULAR INTERACTIONS .2. SAMPLE CALCULATIONS ON HYDROGEN-BONDED COMPLEXES

被引:41
作者
VIBOK, A
MAYER, I
机构
[1] HUNGARIAN ACAD SCI,CENT RES INST CHEM,POB 17,H-1525 BUDAPEST,HUNGARY
[2] LAJOS KOSSUTH UNIV,INST THEORET PHYS,H-4010 DEBRECEN,HUNGARY
关键词
D O I
10.1002/qua.560430607
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 usefulness and reliability of the recent BSSE-free SCF algorithm based on the "chemical Hamiltonian approach" (CHA/F) is demonstrated by calculating potential curves for several hydrogen-bonded complexes with 4-31G, 6-31G, and 6-31G** basis sets. It is concluded that the CHA/F scheme gives results that are numerically close to those of the Boys-Bernardi a posteriori correction scheme but are free from the "overcompensation" characteristic of the latter at smaller distances and given basis sets.
引用
收藏
页码:801 / 811
页数:11
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