Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532007000700022 |
Resumo: | Basis set convergence towards the numerical limit of the total Hartree-Fock (HF) energy is investigated for the hierarchical sequences of the XZP and cc-pVXZ basis sets. For both hierarchies, solid improvements are obtained with each increment in X. To estimate the complete basis set limit, an exponential form was used. Among the various approaches considered here, a three-parameter exponential extrapolation applied to the TZP, QZP, and 5ZP results yields the most accurate basis set limits. In addition, 5ZP highest occupied molecular orbital HF energies of some diatomic molecules are evaluated and compared with the corresponding ones obtained with the cc-pV5Z and numerical HF results. |
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Journal of the Brazilian Chemical Society (Online) |
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Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atomsab initiocalculationsdiatomic moleculesGaussian basis settotal and orbital HF energiesBasis set convergence towards the numerical limit of the total Hartree-Fock (HF) energy is investigated for the hierarchical sequences of the XZP and cc-pVXZ basis sets. For both hierarchies, solid improvements are obtained with each increment in X. To estimate the complete basis set limit, an exponential form was used. Among the various approaches considered here, a three-parameter exponential extrapolation applied to the TZP, QZP, and 5ZP results yields the most accurate basis set limits. In addition, 5ZP highest occupied molecular orbital HF energies of some diatomic molecules are evaluated and compared with the corresponding ones obtained with the cc-pV5Z and numerical HF results.Sociedade Brasileira de Química2007-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532007000700022Journal of the Brazilian Chemical Society v.18 n.7 2007reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532007000700022info:eu-repo/semantics/openAccessSagrillo,Paulo S.Jorge,Francisco E.Barbieri,Pedro L.Fantin,Paulo A.eng2008-01-08T00:00:00Zoai:scielo:S0103-50532007000700022Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2008-01-08T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
title |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
spellingShingle |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms Sagrillo,Paulo S. ab initio calculations diatomic molecules Gaussian basis set total and orbital HF energies |
title_short |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
title_full |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
title_fullStr |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
title_full_unstemmed |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
title_sort |
Basis set convergence in Hartree-Fock calculations of some diatomic molecules containing first and second-row atoms |
author |
Sagrillo,Paulo S. |
author_facet |
Sagrillo,Paulo S. Jorge,Francisco E. Barbieri,Pedro L. Fantin,Paulo A. |
author_role |
author |
author2 |
Jorge,Francisco E. Barbieri,Pedro L. Fantin,Paulo A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Sagrillo,Paulo S. Jorge,Francisco E. Barbieri,Pedro L. Fantin,Paulo A. |
dc.subject.por.fl_str_mv |
ab initio calculations diatomic molecules Gaussian basis set total and orbital HF energies |
topic |
ab initio calculations diatomic molecules Gaussian basis set total and orbital HF energies |
description |
Basis set convergence towards the numerical limit of the total Hartree-Fock (HF) energy is investigated for the hierarchical sequences of the XZP and cc-pVXZ basis sets. For both hierarchies, solid improvements are obtained with each increment in X. To estimate the complete basis set limit, an exponential form was used. Among the various approaches considered here, a three-parameter exponential extrapolation applied to the TZP, QZP, and 5ZP results yields the most accurate basis set limits. In addition, 5ZP highest occupied molecular orbital HF energies of some diatomic molecules are evaluated and compared with the corresponding ones obtained with the cc-pV5Z and numerical HF results. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532007000700022 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532007000700022 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532007000700022 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.18 n.7 2007 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318168535990272 |