Show simple item record

dc.creatorJovanović, Bratislav Ž.
dc.creatorMisić-Vuković, Milica
dc.creatorMarinković, Aleksandar
dc.creatorCsanadi, Janos
dc.date.accessioned2021-03-10T09:48:03Z
dc.date.available2021-03-10T09:48:03Z
dc.date.issued1999
dc.identifier.issn0022-2860
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/238
dc.description.abstractC-13 NMR spectra of two series of pyridine chalcone analogs were determined in deuterated dimethylsulphoxide (DMSO-d(6)). It was established that these compounds were in more stable E-configurations except for the 4-pyridalacetophenone which was in Z-configuration. On the basis of the Hammett correlations of C-13 NMR chemical shifts of the ethylenic bond carbon atoms and the a values for the pyridine "aza" groups, the polarization of ethylenic bonds were discussed. It was established that the opposite effect of the pyridine substituents at the electronic density distribution in pyridalacetophenone and cinnamoylpyridines depends on its direct bonding to the ethylenic carbon or the transmission electronic effects via the carbonyl group, respectively.en
dc.publisherElsevier, Amsterdam
dc.rightsrestrictedAccess
dc.sourceJournal of Molecular Structure
dc.subjectC-13 NMR spectroscopyen
dc.subjectpyridine chalcone analogsen
dc.subjectspectra-structure correlationsen
dc.titleC-13 NMR spectra of pyridine chalcone analogsen
dc.typeconferenceObject
dc.rights.licenseARR
dc.citation.epage374
dc.citation.other482: 371-374
dc.citation.rankM23
dc.citation.spage371
dc.citation.volume482
dc.identifier.doi10.1016/S0022-2860(98)00859-X
dc.identifier.rcubconv_1993
dc.identifier.scopus2-s2.0-0345465611
dc.identifier.wos000081038100069
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record