1
|
Wang Y, Verma P, Zhang L, Li Y, Liu Z, Truhlar DG, He X. M06-SX screened-exchange density functional for chemistry and solid-state physics. Proc Natl Acad Sci U S A 2020; 117:2294-2301. [PMID: 31953258 PMCID: PMC7007546 DOI: 10.1073/pnas.1913699117] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Screened-exchange hybrid density functionals are especially recommended for solid-state systems because they combine the advantages of hybrid functionals with the correct physics and lower computational cost associated with the attenuation of Hartree-Fock exchange at long range. We present a screened-exchange hybrid functional, M06-SX, that combines the functional form of the local revM06-L functional with a percentage of short-range nonlocal Hartree-Fock exchange. The M06-SX functional gives good results not only for a large set of training data but also for several databases quite different from the training data. The mean unsigned error (MUE) of the M06-SX functional is 2.85 kcal/mol for 418 atomic and molecular energies (AME418) in Minnesota Database 2019, which is better than all five other screened-exchange hybrid functionals tested in this work. The M06-SX functional also gives especially good results for semiconductor band gaps, molecular dissociation energies, noncovalent interactions, barrier heights, and electronic excitation energies excluding long-range charge transfer excitations. For the LC18 lattice constants database, the M06-SX functional gives an MUE of only 0.034 Å. Therefore, the M06-SX functional is well suited for studying molecular chemistry as well as solid-state physics.
Collapse
Affiliation(s)
- Ying Wang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410006, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Pragya Verma
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455-0431
- Chemical Theory Center, University of Minnesota, Minneapolis, MN 55455-0431
- Nanoporous Materials Genome Center, University of Minnesota, Minneapolis, MN 55455-0431
- Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0431
| | - Lujia Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- New York University-East China Normal University Center for Computational Chemistry, New York University Shanghai, Shanghai 200062, China
| | - Yaqi Li
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410006, China
| | - Zhonghua Liu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410006, China
| | - Donald G Truhlar
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455-0431;
- Chemical Theory Center, University of Minnesota, Minneapolis, MN 55455-0431
- Nanoporous Materials Genome Center, University of Minnesota, Minneapolis, MN 55455-0431
- Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0431
| | - Xiao He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China;
- New York University-East China Normal University Center for Computational Chemistry, New York University Shanghai, Shanghai 200062, China
| |
Collapse
|