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

The Brueckner doubles variant of coupled cluster theory has recently been reintroduced by the authors. The use of Brueckner orbitals means that the governing equations for T̂2 take a particularly simple form. Here we give the details for the evaluation of the gradient of the Brueckner doubles energy for (a) the unrestricted spin–orbital formalism and (b) the closed-shell restricted formalism. Applications are presented for H2O, NH3, CH4, H2CO, C2H2, HCN, and CO2 and comparisons are made with the Hartree–Fock, second order Mo/ller–Plesset and quadratic configuration interaction models and with experiment.

Bibliography

Kobayashi, R., Handy, N. C., Amos, R. D., Trucks, G. W., Frisch, M. J., & Pople, J. A. (1991). Gradient theory applied to the Brueckner doubles method. The Journal of Chemical Physics, 95(9), 6723–6733.

Authors 6
  1. Rika Kobayashi (first)
  2. Nicholas C. Handy (additional)
  3. Roger D. Amos (additional)
  4. Gary W. Trucks (additional)
  5. Michael J. Frisch (additional)
  6. John A. Pople (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 8:46 a.m.)
Deposited 1 year, 6 months ago (Feb. 10, 2024, 8:47 a.m.)
Indexed 4 months, 1 week ago (April 22, 2025, 6:25 a.m.)
Issued 33 years, 10 months ago (Nov. 1, 1991)
Published 33 years, 10 months ago (Nov. 1, 1991)
Published Print 33 years, 10 months ago (Nov. 1, 1991)
Funders 0

None

@article{Kobayashi_1991, title={Gradient theory applied to the Brueckner doubles method}, volume={95}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.461544}, DOI={10.1063/1.461544}, number={9}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Kobayashi, Rika and Handy, Nicholas C. and Amos, Roger D. and Trucks, Gary W. and Frisch, Michael J. and Pople, John A.}, year={1991}, month=nov, pages={6723–6733} }