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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Bibliographic Details
Authors: Lobayan, Rosana Maria, Bochicchio, Roberto Carlos, Lain, Luis, Torres, Alicia Ines
Format: article
Status:Published version
Publication Date:2007
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/64743
Online Access:http://hdl.handle.net/11336/64743
Access Level:Open access
Keyword:Fisicoquímica, Estructura Molecular
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
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Summary: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.