Article
Modeling Systems with π–π Interactions Using the Hartree–Fock Method with an Empirical Dispersion Correction
Journal of Physical Chemistry A
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
1-1-2015
DOI
10.1021/jp510288k
Abstract
The accuracy of the Hartree–Fock method with an empirical dispersion correction, HF-D3, to model interaction energies and locate constrained minimum geometries is tested against more conventional correlation methods, such as second-order perturbation theory and coupled cluster theory, and against the sophisticated effective fragment potential model. HF-D3 was applied to substituted-benzene dimers in both sandwich and T-shaped configurations and to DNA base pair complexes in both hydrogen bonded and stacked geometries. Overall, HF-D3 is found to be a plausible and cost efficient substitute for higher levels of electronic structure theory, such as MP2, in systems with π–π interactions.
Copyright Owner
American Chemical Society
Copyright Date
2015
Language
en
File Format
application/pdf
Citation Information
Justin A. Conrad and Mark S. Gordon. "Modeling Systems with π–π Interactions Using the Hartree–Fock Method with an Empirical Dispersion Correction" Journal of Physical Chemistry A Vol. 119 Iss. 21 (2015) p. 5377 - 5385 Available at: http://works.bepress.com/mark_gordon/420/
Reprinted (adapted) with permission from Journal of Physical Chemistry A 119 (2015): 5377, doi:10.1021/jp510288k. Copyright 2015 American Chemical Society.