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

In a recent paper [H. L. Schmider and A. D. Becke, J. Chem. Phys. 108, 9624 (1998)], we applied a systematic method for the determination of exchange-correlation functionals within the generalized gradient approximation (GGA) to the extended G2 test set of standard heats of formation of Curtiss et al. [J. Chem. Phys. 106, 1063 (1997)]. In the present work, we apply a similar methodology that goes beyond the GGA by taking second-order gradients and the (noninteracting) kinetic-energy density into account. The resulting improvement in the reproduction of thermochemical data brings us very close to the quality of G2 theory itself. Our lowest mean absolute error for standard heats of formation, 1.60 kcal/mol, is only marginally greater than the G2 value (1.58 kcal/mol). The corresponding largest deviation is 9.97 kcal/mol, as compared to 8.2 kcal/mol for G2 theory.

Bibliography

Schmider, H. L., & Becke, A. D. (1998). Density functionals from the extended G2 test set: Second-order gradient corrections. The Journal of Chemical Physics, 109(19), 8188–8199.

Authors 2
  1. Hartmut L. Schmider (first)
  2. Axel D. Becke (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 8:16 a.m.)
Deposited 1 year, 6 months ago (Feb. 5, 2024, 3:46 p.m.)
Indexed 1 year, 4 months ago (April 24, 2024, 5:51 p.m.)
Issued 26 years, 9 months ago (Nov. 15, 1998)
Published 26 years, 9 months ago (Nov. 15, 1998)
Published Print 26 years, 9 months ago (Nov. 15, 1998)
Funders 0

None

@article{Schmider_1998, title={Density functionals from the extended G2 test set: Second-order gradient corrections}, volume={109}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.477481}, DOI={10.1063/1.477481}, number={19}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Schmider, Hartmut L. and Becke, Axel D.}, year={1998}, month=nov, pages={8188–8199} }