期刊
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
卷 18, 期 1, 页码 293-308出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jctc.1c00981
关键词
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资金
- CNRS [GDR 3333 RFCT]
- ANR (Agence Nationale de la Recherche)
- CGI (Commissariat a l'Investissement d'Avenir) through Labex SEAM (Science and Engineering for Advanced Materials and devices) [ANR-10-LABX-096, ANR-18-IDEX-0001]
- Labex SynOrg [ANR-11-2ABX-0029]
- CRIANN center [A0080810359, A0100810359]
- local P3MB HPC platform of Universite de Paris [ANR-18-IDEX-0001]
This study investigates the relationships between electron-density and electronic-energy errors produced by modern exchange-correlation density-functional approximations, and explores the strengths and weaknesses of the most recent and efficient density-functional approximations through comparison of their performance in terms of density- and energy-based errors on a large selection of molecular systems.
We investigate the relationships between electron-density and electronic-energy errors produced by modern exchange-correlation density-functional approximations belonging to all of the rungs of Perdew's ladder. To this aim, a panel of relevant (semi)local properties evaluated at critical points of the electron-density field (as defined within the framework of Bader's atoms-in-molecules theory) are computed on a large selection of molecular systems involved in thermodynamic, kinetic, and noncovalent interaction chemical databases using density functionals developed in a nonempirical and minimally and highly parametrized fashion. The comparison of their density- and energy-based performance, also discussed in terms of density-driven errors, casts light on the strengths and weaknesses of the most recent and efficient density-functional approximations.
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