Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

Several approximate correlation methods have been assessed for bond breaking reactions in BH, HF, and CH4 by comparison to the full configuration interaction limit. Second-order Møller–Plesset perturbation theory, coupled-cluster singles and doubles (CCSD), coupled-cluster with perturbative triples [CCSD(T)], and the hybrid density-functional method Becke three parameter Lee–Yang–Parr have been considered. Both restricted and unrestricted references have been used along with the basis sets aug-cc-pVQZ, 6-31G**, and 6-31G* for BH, HF, and CH4 respectively. Among the methods considered, unrestricted CCSD and CCSD(T) provide potential energy curves which are the most parallel to the benchmark full CI curves, but the nonparallelity errors are fairly large (up to 6 and 4 kcal mol−1, respectively). Optimized-orbital coupled-cluster methods provide superior results but nevertheless exhibit approximately the same maximum errors.

Bibliography

Dutta, A., & Sherrill, C. D. (2003). Full configuration interaction potential energy curves for breaking bonds to hydrogen: An assessment of single-reference correlation methods. The Journal of Chemical Physics, 118(4), 1610–1619.

Authors 2
  1. Antara Dutta (first)
  2. C. David Sherrill (additional)
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Dates
Type When
Created 22 years, 7 months ago (Jan. 9, 2003, 11:40 a.m.)
Deposited 1 year, 6 months ago (Feb. 7, 2024, 11:35 a.m.)
Indexed 4 months ago (May 1, 2025, 8:43 a.m.)
Issued 22 years, 7 months ago (Jan. 22, 2003)
Published 22 years, 7 months ago (Jan. 22, 2003)
Published Print 22 years, 7 months ago (Jan. 22, 2003)
Funders 0

None

@article{Dutta_2003, title={Full configuration interaction potential energy curves for breaking bonds to hydrogen: An assessment of single-reference correlation methods}, volume={118}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1531658}, DOI={10.1063/1.1531658}, number={4}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Dutta, Antara and Sherrill, C. David}, year={2003}, month=jan, pages={1610–1619} }