Abstract
Auxiliary basis sets for use in explicitly correlated MP2-F12 and CCSD-F12 methods, in which three- and four-electron integrals are approximated as products of two-electron integrals through the resolution of the identity (RI), have been optimized for the elements H, B–Ne, and Al–Ar. Fully matched to the recently constructed cc-pVnZ-F12 orbital basis sets, these new auxiliary basis sets result in very small RI errors, as exemplified by the calculated atomization energies of 42 molecules at the MP2-F12 level. Their utility in calculating smooth potential energy surfaces is also demonstrated in calculations of the spectroscopic properties of several diatomic molecules.
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Dates
Type | When |
---|---|
Created | 16 years, 9 months ago (Nov. 12, 2008, 6:20 p.m.) |
Deposited | 2 years, 2 months ago (June 19, 2023, 10:06 a.m.) |
Indexed | 1 week, 3 days ago (Aug. 26, 2025, 2:23 a.m.) |
Issued | 16 years, 9 months ago (Nov. 12, 2008) |
Published | 16 years, 9 months ago (Nov. 12, 2008) |
Published Online | 16 years, 9 months ago (Nov. 12, 2008) |
Published Print | 16 years, 9 months ago (Nov. 14, 2008) |
@article{Yousaf_2008, title={Optimized auxiliary basis sets for explicitly correlated methods}, volume={129}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.3009271}, DOI={10.1063/1.3009271}, number={18}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Yousaf, Kazim E. and Peterson, Kirk A.}, year={2008}, month=nov }