Approaching the Hartree-Fock Limit through the Complementary Auxiliary Basis Set Singles Correction and Auxiliary Basis Sets.
Approaching the Hartree-Fock Limit through the Complementary Auxiliary Basis Set Singles Correction and Auxiliary Basis Sets.
复制标题
通过互补辅助基组单数校正和辅助基组逼近 Hartree-Fock 极限。
DOI:
10.1021/acs.jctc.7b00140
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发表时间:
2017
影响因子:
5.5
通讯作者:
Shaw RA
中科院分区:
文献类型:
--
作者:
Shaw RA
Auxiliary basis sets for use in the resolution of the identity (RI) approximation in explicitly correlated methods are presented for the elements H–Ar. These extend the cc-pVnZ-F12/OptRI (n= D–Q) auxiliary basis sets of Peterson and co-workers by the addition of a small number of s- and p-functions, optimized so as to yield the greatest complementary auxiliary basis set (CABS) singles correction to the Hartree–Fock energy. The new sets, denoted OptRI+, also lead to a reduction in errors due to the RI approximation and hence an improvement in correlation energies. The atomization energies and heats of formation for a test set of small molecules, and spectroscopic constants for 27 diatomics, calculated at the CCSD(T)-F12b level, are shown to have improved error distributions for the new auxiliary basis sets with negligible additional effort. The OptRI+ sets retain all of the desirable properties of the original OptRI, including the production of smooth potential energy surfaces, while maintaining a compact nature.
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DOI:
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发表时间:
2009
期刊:
影响因子:
--
作者:
W. Klopper;B. Ruscic;D. Tew;F. Bischoff;Sandra Wolfsegger
通讯作者:
Sandra Wolfsegger
DOI:
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发表时间:
1991
期刊:
影响因子:
--
作者:
V. Termath;W. Klopper;W. Kutzelnigg
通讯作者:
W. Kutzelnigg
DOI:
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发表时间:
2002
期刊:
影响因子:
--
作者:
W. Klopper;C. Samson
通讯作者:
C. Samson
DOI:
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发表时间:
2009
期刊:
影响因子:
--
作者:
J. Noga;J. Šimunek
通讯作者:
J. Šimunek
DOI:
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发表时间:
2013
期刊:
影响因子:
--
作者:
W. Kutzelnigg
通讯作者:
W. Kutzelnigg