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dc.creatorJovanović, Bratislav Ž.
dc.creatorMarinković, Aleksandar
dc.creatorAssaleh, Fathi H.
dc.creatorCsanadi, Janos
dc.date.accessioned2021-03-10T10:26:05Z
dc.date.available2021-03-10T10:26:05Z
dc.date.issued2005
dc.identifier.issn0022-2860
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/822
dc.description.abstractC-13 chemical shifts of the azomethine carbon atom for N-(substituted phenylmethylene)-3- and -4-aminobenzoic acids having a wide range of substituent effects, were determined in deuterated DMSO solution. Good Hammett correlations of the C-13 NMR chemical shifts of azomethine carbons with electrophilic substituent constants sigma(+)(p) for electron-donor substituents for both series of acids indicate an important resonance interaction of the substituents on the benzylidene ring with the azomethine carbon atom. On the other hand, good correlations of the 13 C NMR chemical shifts of azomethine carbon atom of both series of acids with inductive substituent constants for electron-acceptor substituents in benzylidene ring indicates that the chemical shifts are influenced only by inductive effect of the substituents. The demand for electrons by the azomethine carbon atom in both investigated series have been compared, discussing the mode of transmission of substituent effects, both inductive and resonance, in relation to the geometry of investigated imines.en
dc.publisherElsevier Science Bv, Amsterdam
dc.rightsrestrictedAccess
dc.sourceJournal of Molecular Structure
dc.subjectC-13 NMR spectroscopyen
dc.subjectspectra-structure correlationsen
dc.subjectN-(substituted phenylmethylene)-3-aminobenzoic acidsen
dc.subjectN-(substituted phenylmethylene)-4-aminobenzoic acidsen
dc.titleEffect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(substituted phenylmethylene)-3-and-4-aminobenzoic acidsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage416
dc.citation.other744: 411-416
dc.citation.rankM22
dc.citation.spage411
dc.citation.volume744
dc.identifier.doi10.1016/j.molstruc.2004.12.028
dc.identifier.scopus2-s2.0-19444366958
dc.identifier.wos000229657700054
dc.type.versionpublishedVersion


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Приказ основних података о документу