Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 142, Issue 6, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4907591
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Funding
- ERC [ASES 320723]
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An explicitly correlated version of the distinguishable-cluster approximation is presented and extensively benchmarked. It is shown that the usual F12-type explicitly correlated approaches are applicable to distinguishable-cluster theory with single and double excitations, and the results show a significant improvement compared to coupled-cluster theory with singles and doubles for closed and open-shell systems. The resulting method can be applied in a black-box manner to systems with single-and multireference character. Most noticeably, optimized geometries are of coupled-cluster singles and doubles with perturbative triples quality or even better. (C) 2015 AIP Publishing LLC.
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