Quinic acid and hypervalent chromium: A spectroscopic and kinetic study

dc.creatorMangiameli, María Florencia
dc.creatorBellú, Sebastián Eduardo
dc.creatorPerez Mora, Barbara Edith
dc.creatorSala, Luis Federico
dc.creatorMamana, Nadia
dc.date.accessioned2019-10-23T19:21:16Z
dc.date.accessioned2022-10-15T08:55:24Z
dc.date.available2019-10-23T19:21:16Z
dc.date.available2022-10-15T08:55:24Z
dc.date.created2019-10-23T19:21:16Z
dc.date.issued2018-08
dc.identifierMangiameli, María Florencia; Bellú, Sebastián Eduardo; Perez Mora, Barbara Edith; Sala, Luis Federico; Mamana, Nadia; Quinic acid and hypervalent chromium: A spectroscopic and kinetic study; Royal Society of Chemistry; RSC Advances; 8; 51; 8-2018; 29356-29367
dc.identifier2046-2069
dc.identifierhttp://hdl.handle.net/11336/87144
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4367510
dc.description.abstractThe redox reaction between an excess of quinic acid (QA) and CrVI involves the formation of intermediates, namely, CrIV and CrV species, which in turn react with the organic substrates. As observed with other substrates that have already been studied, CrIV does not accumulate during this reaction because of the rate of the reaction. Its rate of disappearance is several times higher than that of the reaction of CrVI or CrV with QA. Kinetic studies indicate that the redox reaction proceeds via a combined mechanism that involves the pathways CrVI → CrIV → CrII and CrVI → CrIV → CrIII, which is supported by the observation of superoxo-CrIII (CrO2 2+) ions, free radicals, and oxo-CrV species as intermediates and the detection of CrVI ester species. The present study reports the complete rate laws for the QA/chromium redox reaction.
dc.languageeng
dc.publisherRoyal Society of Chemistry
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/c8ra03809k
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/RA/C8RA03809K#!divAbstract
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectQuinic acid
dc.subjectChromium
dc.subjectkinetics mechanism
dc.subjectspectroscopy
dc.titleQuinic acid and hypervalent chromium: A spectroscopic and kinetic study
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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