Show simple item record

dc.creatorCervellati, Rinaldo
dc.creatorGreco, Emanuela
dc.creatorBlagojević, Slavica
dc.creatorBlagojević, Stevan
dc.creatorAnić, Slobodan
dc.creatorČupić, Željko
dc.date.accessioned2019-01-30T18:00:59Z
dc.date.available2019-01-30T18:00:59Z
dc.date.issued2018
dc.identifier.issn1878-5190
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2462
dc.description.abstractThe system KSCN-H2O2-CuSO4-NaOH, also known as the OrbA n-Epstein oscillatory reaction, is exposed to external perturbations by several phenolic compounds: catechol, resorcinol, hydroquinone, 2,5-dihydroxybenzoic acid, 2,6-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid, 2,4-dihydroxybenzoic acid, 3,4-dihydroxybenzoic acid, 3,5-dihydroxybenzoic acid, caffeic acid, and ferulic acid. As a result of the performed perturbation in most examined cases, oscillations have been inhibited for some characteristic time, and resumed afterwards. The evaluated inhibition time is typical for each substance and strongly dependent on its concentration. The chemical mechanism of the interaction between the OrbA n-Epstein system and phenolic compounds is briefly discussed. Numerical simulations are performed using the original OrbA n-Epstein model with 30 reactions, extended by three reactions describing the interaction with inhibitory substances. The rate constants of three added reactions are adjusted to fit experimental inhibition times, and compared among used compounds. The observed effects are discussed further in relation with the bond dissociation enthalpy theory. Unlike other tested compounds, 2,5-dihydroxybenzoic acid remains off from predicted order of activity.en
dc.publisherSpringer Netherlands
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172015/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsrestrictedAccess
dc.sourceReaction Kinetics, Mechanisms and Catalysis
dc.subjectOrban-Epstein oscillatory reactionen
dc.subjectCatecholen
dc.subjectResorcinolen
dc.subjectHydroquinoneen
dc.subjectDihydroxybenzoic acidsen
dc.subjectHydroxycinnamic acidsen
dc.titleExperimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reactionen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractБлагојевиц, Стеван Н.; Грецо, Емануела; Цервеллати, Риналдо; Благојевиц, Славица М.; Aниц, Слободан; Чупић, Жељко;
dc.citation.volume123
dc.citation.issue1
dc.citation.spage125
dc.citation.epage139
dc.citation.other123(1): 125-139
dc.citation.rankM23
dc.identifier.doi10.1007/s11144-017-1306-8
dc.identifier.rcubConv_3858
dc.identifier.scopus2-s2.0-85034061184
dc.identifier.wos000419514200009
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record