Published in
American Institute of Physics, The Journal of Chemical Physics, 20(146), p. 204108
DOI: 10.1063/1.4984048
Links
- ORCID
- American Institute of Physics | PDF
- [arxiv.org] | PDF
- [arxiv.org] | PDF
- [www.ncbi.nlm.nih.gov] | PDF
- [kclpure.kcl.ac.uk] | PDF
- [kclpure.kcl.ac.uk] | PDF
- [discovery.ucl.ac.uk] | PDF
- [europepmc.org] | PDF
Tools
A comparison between quantum chemistry and quantum Monte Carlo techniques for the adsorption of water on the (001) LiH surface
,
Felix Hummel,
Denis Usvyat ,
Martin Schütz ,
George H. Booth ,
Simon S. Binnie,
Michael J. Gillan,
Dario Alfè ,
Angelos Michaelides ,
Andreas Grüneis
Full text: Download
Abstract
We present a comprehensive benchmark study of the adsorption energy of a single water molecule on the (001) LiH surface using periodic coupled cluster and quantum Monte Carlo theories. We benchmark and compare different implementations of quantum chemical wave function based theories in order to verify the reliability of the predicted adsorption energies and the employed approximations. Furthermore we compare the predicted adsorption energies to those obtained employing widely-used van der Waals density-functionals. Our findings show that quantum chemical approaches are becoming a robust and reliable tool for condensed phase electronic structure calculations, providing an additional tool that can also help in potentially improving currently available van der Waals density-functionals.