The correlation consistent basis sets (cc-pVnZ with n = D, T, Q, 5) for the Ga–Br elements have been redesigned, tuning the sets for use for density functional approximations. Steps to redesign these basis sets for an improved correlation energy recovery and efficiency include truncation of higher angular momentum functions, recontraction of basis set coefficients, and reoptimization of basis set exponents. These redesigned basis sets are compared with conventional cc-pVnZ basis sets and other basis sets, which are, in principle, designed to achieve systematic improvement with respect to increasing basis set size. The convergence of atomic energies, bond lengths, bond dissociation energies, and enthalpies of formation to the Kohn–Sham limit is improved relative to other basis sets where convergence to the Kohn–Sham limit is typically not observed.
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28 February 2024
Research Article|
February 22 2024
Correlation consistent basis sets designed for density functional theory: Third-row atoms (Ga–Br)
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John Perdew Festschrift
John J. Determan
;
John J. Determan
a)
(Conceptualization, Investigation, Methodology, Writing – original draft, Writing – review & editing)
1
Department of Chemistry, Western Illinois University
, Macomb, Illinois 61455, USA
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Angela K. Wilson
Angela K. Wilson
b)
(Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Resources, Writing – original draft, Writing – review & editing)
2
Department of Chemistry, Michigan State University
, East Lansing, Michigan 48824, USA
b)Author to whom correspondence should be addressed: akwilson@msu.edu
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b)Author to whom correspondence should be addressed: akwilson@msu.edu
a)
Email: jj-determan@wiu.edu
J. Chem. Phys. 160, 084105 (2024)
Article history
Received:
September 18 2023
Accepted:
January 02 2024
Citation
John J. Determan, Angela K. Wilson; Correlation consistent basis sets designed for density functional theory: Third-row atoms (Ga–Br). J. Chem. Phys. 28 February 2024; 160 (8): 084105. https://doi.org/10.1063/5.0176964
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