Post-complete-basis-set extrapolation of conventional and explicitly correlated coupled-cluster energies: can the convergence to the CBS limit be diagnosed?

2021 ◽  
Vol 23 (14) ◽  
pp. 8717-8730 ◽  
Author(s):  
A. J. C. Varandas
Keyword(s):  
Basis Set ◽  
Coupled Cluster ◽  
Complete Basis ◽  
Complete Basis Set ◽  
Explicitly Correlated ◽  
Test Sets ◽  
Basis Set Extrapolation

We assess benchmark correlation energies for 130 systems in test sets A24 and TS-106 both with the canonical CCSD(T) and explicitly correlated CCSD(T)-F12 methods.

scholarly journals Dataset of Noncovalent Intermolecular Interaction Energy Curves for 24 Small High-Spin Open-Shell Dimers

2021 ◽  
Author(s):  
Katarzyna Madajczyk ◽  
Piotr Zuchowski ◽  
Filip Brzęk ◽  
Łukasz Rajchel ◽  
Dariusz Kędziera ◽  
...  
Keyword(s):  
Interaction Energy ◽  
Intermolecular Interaction ◽  
High Spin ◽  
Open Shell ◽  
Basis Set ◽  
Interaction Energies ◽  
Intermolecular Interaction Energy ◽  
Complete Basis ◽  
Complete Basis Set ◽  
Basis Set Extrapolation

<div>We introduce a dataset of 24 interaction energy curves of open-shell noncovalent dimers, referred to as the O24x5 dataset. The dataset consists of high-spin dimers up to eleven atoms selected to assure diversity with respect to interactions types: dispersion, electrostatics and induction. The benchmark interaction energies are obtained at the restricted open-shell CCSD(T) level of theory with complete basis set extrapolation aug-cc-pVQZ--> aug-cc-pV5Z.</div>

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