Journal
CHEMPHYSCHEM
Volume 21, Issue 21, Pages 2441-2453Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.202000624
Keywords
van der Waals radii; condensed matter; atomic properties; high pressure; electronic structure
Funding
- Chalmers University of Technology, Chalmers Area of Advance Materials Science
- Swedish Research Council [2018-06482]
- AngstromForsk Foundation [20-330]
- Swedish Research Council [2018-06482] Funding Source: Swedish Research Council
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: We present quantum mechanical estimates for non-bonded, van der Waals-like, radii of 93 atoms in a pressure range from 0 to 300 gigapascal. Trends in radii are largely maintained under pressure, but atoms also change place in their relative size ordering. Multiple isobaric contractions of radii are predicted and are explained by pressure-induced changes to the electronic ground state configurations of the atoms. The presented radii are predictive of drastically different chemistry under high pressure and permit an extension of chemical thinking to different thermodynamic regimes. For example, they can aid in assignment of bonded and non-bonded contacts, for distinguishing molecular entities, and for estimating available space inside compressed materials. All data has been made available in an interactive web application.
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