1. RODNA
  2. CONICET
  3. CONICET
Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.provenanceCONICET-
dc.creatorPedersoli, Susimaire-
dc.creatorDos Santos, Francisco P.-
dc.creatorRittner, Roberto-
dc.creatorContreras, Ruben Horacio-
dc.creatorTormena, Cláudio F.-
dc.date2018-10-09T18:42:12Z-
dc.date2018-10-09T18:42:12Z-
dc.date2008-03-
dc.date2018-10-05T19:11:27Z-
dc.date.accessioned2019-04-29T15:41:17Z-
dc.date.available2019-04-29T15:41:17Z-
dc.date.issued2018-10-09T18:42:12Z-
dc.date.issued2018-10-09T18:42:12Z-
dc.date.issued2008-03-
dc.date.issued2018-10-05T19:11:27Z-
dc.identifierPedersoli, 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.identifier0749-1581-
dc.identifierhttp://hdl.handle.net/11336/61994-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/299545-
dc.descriptionIn 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.descriptionFil: Pedersoli, Susimaire. Universidade Estadual de Campinas; Brasil-
dc.descriptionFil: Dos Santos, Francisco P.. Universidade Estadual de Campinas; Brasil-
dc.descriptionFil: Rittner, Roberto. Universidade Estadual de Campinas; Brasil-
dc.descriptionFil: 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.descriptionFil: Tormena, Cláudio F.. Universidade Estadual de Campinas; Brasil-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherJohn Wiley & Sons Ltd-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1002/mrc.2158-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/mrc.2158-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.source.urihttp://hdl.handle.net/11336/22797-
dc.subject3JCH COUPLINGS-
dc.subjectFC TRANSMISSION-
dc.subjectNEGATIVE HYPERCONJUGATIVE INTERACTIONS-
dc.subjectAstronomía-
dc.subjectCiencias Físicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleNMR spin-spin couplings involving nuclei in the neighborhood of a carbonyl group. 3JCH couplings in α-substituted acetamides-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
Aparece en las colecciones: CONICET

Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro sencillo del ítem