Journal of Chemical Physics, volume 151, issue 9, pages 94106

Simple exchange hole models for long-range-corrected density functionals

Publication typeJournal Article
Publication date2019-09-06
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor4.4
ISSN00219606, 10897690
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract

Density functionals with a range-separated treatment of the exchange energy are known to improve upon their semilocal forerunners and fixed-fraction hybrids. The conversion of a given semilocal functional into its short-range analog is not straightforward, however, and not even unique, because the latter has a higher information content that has to be recovered in some way. Simple models of the spherically averaged exchange hole as an interpolation between the uniform electron gas limit and a few-term Hermite function are developed here for use with generalized-gradient approximations, so that the energy density of the error-function-weighted Coulomb interaction is given by explicit closed-form expressions in terms of elementary and error functions. For comparison, some new nonoscillatory models in the spirit of earlier works are also built and studied; the energy densities from both kinds of models match rather closely (within less than 5%), but the latter slightly mismatches (by about 1%) the exact uniform electron gas limit.

Citations by journals

1
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, 1, 20%
Physical Chemistry Chemical Physics
1 publication, 20%
Organometallics
Organometallics, 1, 20%
Organometallics
1 publication, 20%
Journal of Chemical Theory and Computation
Journal of Chemical Theory and Computation, 1, 20%
Journal of Chemical Theory and Computation
1 publication, 20%
Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, 1, 20%
Journal of Physical Chemistry Letters
1 publication, 20%
Journal of the American Society for Mass Spectrometry
Journal of the American Society for Mass Spectrometry, 1, 20%
Journal of the American Society for Mass Spectrometry
1 publication, 20%
1

Citations by publishers

1
2
3
4
American Chemical Society (ACS)
American Chemical Society (ACS), 4, 80%
American Chemical Society (ACS)
4 publications, 80%
Royal Society of Chemistry (RSC)
Royal Society of Chemistry (RSC), 1, 20%
Royal Society of Chemistry (RSC)
1 publication, 20%
1
2
3
4
  • We do not take into account publications that without a DOI.
  • Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
  • Statistics recalculated weekly.
Metrics
Share
Cite this
GOST |
Cite this
GOST Copy
Laikov D. Simple exchange hole models for long-range-corrected density functionals // Journal of Chemical Physics. 2019. Vol. 151. No. 9. p. 94106.
GOST all authors (up to 50) Copy
Laikov D. Simple exchange hole models for long-range-corrected density functionals // Journal of Chemical Physics. 2019. Vol. 151. No. 9. p. 94106.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1063/1.5110633
UR - https://doi.org/10.1063%2F1.5110633
TI - Simple exchange hole models for long-range-corrected density functionals
T2 - Journal of Chemical Physics
AU - Laikov, Dimitri
PY - 2019
DA - 2019/09/06 00:00:00
PB - American Institute of Physics (AIP)
SP - 94106
IS - 9
VL - 151
SN - 0021-9606
SN - 1089-7690
ER -
BibTex |
Cite this
BibTex Copy
@article{2019_Laikov,
author = {Dimitri Laikov},
title = {Simple exchange hole models for long-range-corrected density functionals},
journal = {Journal of Chemical Physics},
year = {2019},
volume = {151},
publisher = {American Institute of Physics (AIP)},
month = {sep},
url = {https://doi.org/10.1063%2F1.5110633},
number = {9},
pages = {94106},
doi = {10.1063/1.5110633}
}
MLA
Cite this
MLA Copy
Laikov, Dimitri. “Simple exchange hole models for long-range-corrected density functionals.” Journal of Chemical Physics, vol. 151, no. 9, Sep. 2019, p. 94106. https://doi.org/10.1063%2F1.5110633.
Found error?