A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds

<abstract language="eng">Hydrogen bonds formed through the interaction between a high electronic density center (lone electron pairs, &#960; or pseudo-&#960; bonds) and proton donors cause important electronic and vibrational phenomena in many systems. However, it was demonst...

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Main Authors: Boaz G. Oliveira, Regiane C. M. U. Araújo, Mozart N. Ramos
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2010-01-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000500029
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spelling doaj-d51ee31b62b742f5a2fa7a3c72b48d8b2020-11-24T22:29:37ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642010-01-013351155116210.1590/S0100-40422010000500029A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bondsBoaz G. OliveiraRegiane C. M. U. AraújoMozart N. Ramos<abstract language="eng">Hydrogen bonds formed through the interaction between a high electronic density center (lone electron pairs, &#960; or pseudo-&#960; bonds) and proton donors cause important electronic and vibrational phenomena in many systems. However, it was demonstrated that proton donors interact with hydrides, such as alkali and alkaline earth metals (BeH2, MgH2, LiH and NaH), what yields a new type of interaction so-called dihydrogen bonds. The characterization of these interactions has been performed at light of the Quantum Theory of Atoms in Molecules (QTAIM), by which the electronic densities &#961; are quantified and the intermolecular regions are characterized as closed-shell interactions through the analysis of the Laplacian field &#8711;2&#961;.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000500029QTAIMhydrogen bondsdihydrogen bonds
collection DOAJ
language English
format Article
sources DOAJ
author Boaz G. Oliveira
Regiane C. M. U. Araújo
Mozart N. Ramos
spellingShingle Boaz G. Oliveira
Regiane C. M. U. Araújo
Mozart N. Ramos
A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
Química Nova
QTAIM
hydrogen bonds
dihydrogen bonds
author_facet Boaz G. Oliveira
Regiane C. M. U. Araújo
Mozart N. Ramos
author_sort Boaz G. Oliveira
title A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
title_short A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
title_full A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
title_fullStr A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
title_full_unstemmed A topologia molecular QTAIM e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio The QTAIM molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
title_sort topologia molecular qtaim e a descrição mecânico-quântica de ligações de hidrogênio e ligações de di-hidrogênio the qtaim molecular topology and the quantum-mechanical description of hydrogen bonds and dihydrogen bonds
publisher Sociedade Brasileira de Química
series Química Nova
issn 0100-4042
1678-7064
publishDate 2010-01-01
description <abstract language="eng">Hydrogen bonds formed through the interaction between a high electronic density center (lone electron pairs, &#960; or pseudo-&#960; bonds) and proton donors cause important electronic and vibrational phenomena in many systems. However, it was demonstrated that proton donors interact with hydrides, such as alkali and alkaline earth metals (BeH2, MgH2, LiH and NaH), what yields a new type of interaction so-called dihydrogen bonds. The characterization of these interactions has been performed at light of the Quantum Theory of Atoms in Molecules (QTAIM), by which the electronic densities &#961; are quantified and the intermolecular regions are characterized as closed-shell interactions through the analysis of the Laplacian field &#8711;2&#961;.
topic QTAIM
hydrogen bonds
dihydrogen bonds
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000500029
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