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dc.creatorMatijević, Borko M.
dc.creatorVaštag, Đenđi
dc.creatorApostolov, Suzana
dc.creatorAssaleh, Fathi H.
dc.creatorMarinković, Aleksandar
dc.creatorMijin, Dušan
dc.date.accessioned2021-03-10T13:03:23Z
dc.date.available2021-03-10T13:03:23Z
dc.date.issued2016
dc.identifier.issn0095-9782
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3273
dc.description.abstractA series of sixteen synthesized thiouracil azo dyes was obtained by condensation of arylazo acetoacetic esters with thiourea. Purified products were characterized by UV-Vis, FT-IR, H-1 and C-13 NMR spectroscopy. The UV-Vis absorption spectra of all synthesized compounds were recorded in nineteen solvents of different properties. The study and analysis of the spectral data of azo dyes generally indicate that the tautomeric equilibrium is shifted to the hydrazone tautomeric form in the solid state. Linear solvation energy relationships describe solvent influence on solvatochromism of the hydrazone form with the use of the Catalan model. Linear free energy relationships were applied in the form of single substituent parameter model to analyze substituent electronic effects on the spectral behavior of the compounds by Hammett's equation. The correlations obtained with aid of theoretical calculations give insight into the influence of molecular conformation on the transmission of substituent effects, as well as different solvent-solute interactions.en
dc.publisherSpringer/Plenum Publishers, New York
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172013/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Solution Chemistry
dc.subjectThiouracil azo dyesen
dc.subjectUV absorption spectraen
dc.subjectSolvent effectsen
dc.subjectSubstituent effectsen
dc.titleSolvatochromism of Thiouracil Azo Dyesen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage906
dc.citation.issue6
dc.citation.other45(6): 885-906
dc.citation.rankM23
dc.citation.spage885
dc.citation.volume45
dc.identifier.doi10.1007/s10953-016-0482-x
dc.identifier.rcubconv_5044
dc.identifier.scopus2-s2.0-84970996538
dc.identifier.wos000379492300006
dc.type.versionpublishedVersion


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