Laplacian field of the effectively unpaired electron density: Determination of many-body effects on electron distributions

This work carries out the study of the Laplacian field function of the electron density L(r) = -∇2ρ(r) splitted in two contributions ρ(r) = ρ(p)(r) + ρ(u)(r), which correspond to the effectively paired and effectively unpaired electron densities, respectively. The visualization of the concentration...

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Detalhes bibliográficos
Autores: Lobayan, Rosana Maria, Bochicchio, Roberto Carlos, Lain, Luis, Torres, Alicia Ines
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2007
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/64743
Acesso em linha:http://hdl.handle.net/11336/64743
Access Level:Acceso aberto
Palavra-chave:Fisicoquímica, Estructura Molecular
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descrição
Resumo:This work carries out the study of the Laplacian field function of the electron density L(r) = -∇2ρ(r) splitted in two contributions ρ(r) = ρ(p)(r) + ρ(u)(r), which correspond to the effectively paired and effectively unpaired electron densities, respectively. The visualization of the concentration and depletion of these fields and their spatial localization show no contribution of the effectively unpaired electrons to the conventional bonding among two centers, but the field -∇2ρ(u)(r) provides an interesting structure. We also study the reliability of the information contained in the partitioning of this electron density field function for describing nonclassical bondings as the three-center two-electron ones. © 2007 American Chemical Society.