Cited by 143Machine Learning in Materials ScienceAdvanced Chemical Physics StudiesComputational Drug Discovery Methods

tmQM Dataset─Quantum Geometries and Properties of 86k Transition Metal Complexes

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Balcells, David, Skjelstad, Bastian Bjerkem·2020·Journal of Chemical Information and Modeling

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Abstract

We report the transition metal quantum mechanics (tmQM) data set, which contains the geometries and properties of a large transition metal–organic compound space. tmQM comprises 86,665 mononuclear complexes extracted from the Cambridge Structural Database, including Werner, bioinorganic, and organometallic complexes based on a large variety of organic ligands and 30 transition metals (the 3d, 4d, and 5d from groups 3 to 12). All complexes are closed-shell, with a formal charge in the range {+1, 0, −1}e. The tmQM data set provides the Cartesian coordinates of all metal complexes optimized at the GFN2-xTB level, and their molecular size, stoichiometry, and metal node degree. The quantum properties were computed at the DFT(TPSSh-D3BJ/def2-SVP) level and include the electronic and dispersion energies, highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies, HOMO/LUMO gap, dipole moment, and natural charge of the metal center; GFN2-xTB polarizabilities are also provided. Pairwise representations showed the low correlation between these properties, providing nearly continuous maps with unusual regions of the chemical space, for example, complexes combining large polarizabilities with wide HOMO/LUMO gaps and complexes combining low-energy HOMO orbitals with electron-rich metal centers. The tmQM data set can be exploited in the data-driven discovery of new metal complexes, including predictive models based on machine learning. These models may have a strong impact on the fields in which transition metal chemistry plays a key role, for example, catalysis, organic synthesis, and materials science. tmQM is an open data set that can be downloaded free of charge from https://github.com/bbskjelstad/tmqm.

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Authors
Balcells, D., & Skjelstad, B. B.
Affiliations
  • University of Oslo (NO)
  • Hokkaido University (JP)
Corresponding author
Balcells, David
Venue
Journal of Chemical Information and Modeling
Published
2020-11-09
Volume
60
Issue
12
Pages
6135-6146
ISSN
  • 1549-9596 (ISSN-L)
  • 1549-960X
OpenAlex
W3098543521
Cited by
143
References
97
Citations by year
2026: 35 · 2025: 34 · 2024: 27 · 2023: 12 · 2022: 15 · 2021: 16 · 2020: 4
FWCI
4.57
Type
journal article
Language
en
Open access
Locations
  • Journal of Chemical Information and Modeling (publishedVersion, cc-by)
  • ChemRxiv (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Royal College of Surgeons in Ireland (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
Funders
Norges Forskningsr?d (262695)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
transition metal complexes, mononuclear complexes, quantum chemical properties, molecular geometry, HOMO-LUMO gap, polarizability, electronic energy, dispersion energy, chemical space, machine learning property prediction, Cambridge Structural Database, organometallic compounds
MeSH terms
Electrons, Ligands, Metals, Models, Molecular, Coordination Complexes

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