Mostrar el registro sencillo del ítem
dc.contributor.author
Pedersoli, Susimaire
dc.contributor.author
Dos Santos, Francisco P.
dc.contributor.author
Rittner, Roberto
dc.contributor.author
Contreras, Ruben Horacio
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Tormena, Cláudio F.
dc.date.available
2018-10-09T18:42:12Z
dc.date.issued
2008-03
dc.identifier.citation
Pedersoli, Susimaire; Dos Santos, Francisco P.; Rittner, Roberto; Contreras, Ruben Horacio; Tormena, Cláudio F.; NMR spin-spin couplings involving nuclei in the neighborhood of a carbonyl group. 3JCH couplings in α-substituted acetamides; John Wiley & Sons Ltd; Magnetic Resonance in Chemistry; 46; 3; 3-2008; 202-205
dc.identifier.issn
0749-1581
dc.identifier.uri
http://hdl.handle.net/11336/61994
dc.description.abstract
In this work 3JCH spin-spin coupling constants (SSCCs) for the cis- and trans-conformers for α-X-acetamides (X = F, Cl, Br and CN) (1-4) were studied in detail since they were found to be notably different for both conformers. These differences are rationalized as originating in the changes of the strong negative hyperconjugative interactions that take place within the carbonyl group. Such changes are found to depend not only on conformation, but also on solvent. For the cis-conformers there is a close proximity between the X-substituent and the in-plane oxygen lone pair of pure p character, which affects notably their respective negative hyperconjugative interactions. Both the efficiency for transmitting the Fermi contact (FC) term through the coupling pathway of 3JCH SSCCs and its potential as a probe to study the stereochemical properties of the XH 2C group are discussed. Copyright © 2008 John Wiley & Sons, Ltd.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
3jch Couplings
dc.subject
Fc Transmission
dc.subject
Negative Hyperconjugative Interactions
dc.subject.classification
Astronomía
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Físicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
NMR spin-spin couplings involving nuclei in the neighborhood of a carbonyl group. 3JCH couplings in α-substituted acetamides
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-05T19:11:27Z
dc.journal.volume
46
dc.journal.number
3
dc.journal.pagination
202-205
dc.journal.pais
Reino Unido
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.journal.ciudad
Londres
dc.description.fil
Fil: Pedersoli, Susimaire. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Dos Santos, Francisco P.. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Rittner, Roberto. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Contreras, Ruben Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Tormena, Cláudio F.. Universidade Estadual de Campinas; Brasil
dc.journal.title
Magnetic Resonance in Chemistry
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1002/mrc.2158
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/mrc.2158
Archivos asociados