ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
paperdatasets.pdf (356.94 kB)
0/0

Benchmarking Several van der Waals Dispersion Approaches for the Description of Intermolecular Interactions

preprint
submitted on 31.01.2018 and posted on 01.02.2018 by Julien Claudot, Won June Kim, Anant Dixit, Hyungjun Kim, Tim Gould, Dario Rocca, Sébastien Lebègue
Seven methods, including three van der Waals density functionals (vdW-DFs) and four different variants of the Tkatchenko-Scheffler (TS) methods, are tested on the A24, L7, and Taylor et al.'s "blind" test sets. It is found that for these systems, the vdW-DFs perform better that the TS methods. In particular, the vdW-DF-cx functional gives binding energies that are the closest to the reference values, while the many body correction of TS does not always lead to an improvement in the description of molecular systems. In light of these results, several directions for further improvements to describe van der Waals interactions are discussed.

History

Email Address of Submitting Author

t.gould@griffith.edu.au

Institution

Griffith University

Country

Australia

ORCID For Submitting Author

0000-0002-7191-9124

Declaration of Conflict of Interest

None

Exports

Logo branding

Exports