Quantum chemical topological analysis of hydrogen bonding in HX…HX and CH3X…HX dimers (X = Br, Cl, F)
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Otros documentos de la autoría: Cormanich, Rodrigo A.; Santiago, Régis T.; La Porta, Felipe A.; Freitas, Matheus P.; Rittner, Roberto; Cunha, Elaine F. F. da; Andres, Juan; Longo, Elson; Ramalho, Teodorico C.
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Título
Quantum chemical topological analysis of hydrogen bonding in HX…HX and CH3X…HX dimers (X = Br, Cl, F)Autoría
Fecha de publicación
2015Editor
Taylor & FrancisISSN
0892-7022; 1029-0435Cita bibliográfica
CORMANICH, Rodrigo A., et al. Quantum chemical topological analysis of hydrogen bonding in HX… HX and CH3X… HX dimers (X= Br, Cl, F). Molecular Simulation, 2015, vol. 41, no 7, p. 600-609.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.tandfonline.com/doi/abs/10.1080/08927022.2014.904514Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
We present a systematic investigation of the nature and strength of the hydrogen bonding in HX···HX and CH3X…HX (X = Br, Cl and F) dimers using ab initio MP2/aug-cc-pVTZ calculations in the framework of the quantum ... [+]
We present a systematic investigation of the nature and strength of the hydrogen bonding in HX···HX and CH3X…HX (X = Br, Cl and F) dimers using ab initio MP2/aug-cc-pVTZ calculations in the framework of the quantum theory of atoms in molecules (QTAIM) and electron localisation functions (ELFs) methods. The electron density of the complexes has been characterised, and the hydrogen bonding energy, as well as the QTAIM and ELF parameters, is consistent, providing deep insight into the origin of the hydrogen bonding in these complexes. It was found that in both linear and angular HX…HX and CH3X…HX dimers, F atoms form stronger HB than Br and Cl, but they need short (∼2 Å) X…HX contacts. [-]
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Molecular Simulation, 2015, vol. 41, no 7Derechos de acceso
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