Symmetry-adapted HAM/3 method and its application to some symmetric molecules

Bibliographic Details
Title: Symmetry-adapted HAM/3 method and its application to some symmetric molecules
Authors: Narita, Susumu, Shibuya, Tai-ichi, Fujiwara, Fred Y., Takahata, Yuji
Source: Journal of the Brazilian Chemical Society. June 2004 15(3)
Publisher Information: Sociedade Brasileira de QuĂ­mica, 2004.
Publication Year: 2004
Subject Terms: symmetry, degeneracy, HAM/3, semiempirical method, excited states
More Details: The semiempirical HAM/3 method developed by Lindholm and coworkers about two decades ago has been known to have a deficiency that splits energies for the degenerate energy states. We have recently proposed a group-theoretical approach to remedy the internally broken symmetry of the HAM/3 Hamiltonians. In this paper, we present some results of its application to various small molecules with symmetry Td, C3v, and D3h. The proposed scheme gives correct degeneracy for these molecules.
Document Type: other
File Description: text/html
Language: English
ISSN: 0103-5053
DOI: 10.1590/S0103-50532004000300018
Access URL: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300018
Rights: info:eu-repo/semantics/openAccess
Accession Number: edssci.S0103.50532004000300018
Database: SciELO
More Details
ISSN:01035053
DOI:10.1590/S0103-50532004000300018
Published in:Journal of the Brazilian Chemical Society
Language:English