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Specific Anion Effects on the Kinetics of Iodination of Acetone

Lo Nostro, Pierandrea; Mazzini, Virginia; Ninham, Barry W; Ambrosi, Moira; Dei, Luigi; Baglioni, Piero

Description

Specific ion effects on the kinetics of iodination of acetone in an acidic medium are investigated by UV/Vis spectrophotometry as a function of nature of the acid and temperature. The results indicate that the order of the reaction with respect to acetone is practically unaffected by the composition of the acid while the value of the mixed constant k₁K increases according to the sequence HBr<HCl<HClO₄<HF<H₂ SO₄<H₃PO₄ . The results are discussed in terms of the hydration free energy and size of...[Show more]

dc.contributor.authorLo Nostro, Pierandrea
dc.contributor.authorMazzini, Virginia
dc.contributor.authorNinham, Barry W
dc.contributor.authorAmbrosi, Moira
dc.contributor.authorDei, Luigi
dc.contributor.authorBaglioni, Piero
dc.date.accessioned2016-09-14T04:23:31Z
dc.date.available2016-09-14T04:23:31Z
dc.identifier.issn1439-4235
dc.identifier.urihttp://hdl.handle.net/1885/108874
dc.description.abstractSpecific ion effects on the kinetics of iodination of acetone in an acidic medium are investigated by UV/Vis spectrophotometry as a function of nature of the acid and temperature. The results indicate that the order of the reaction with respect to acetone is practically unaffected by the composition of the acid while the value of the mixed constant k₁K increases according to the sequence HBr<HCl<HClO₄<HF<H₂ SO₄<H₃PO₄ . The results are discussed in terms of the hydration free energy and size of the anion and of the interaction between the cationic intermediate and the anion.
dc.description.sponsorshipThe authors are gratefultoCSGI and to the Enzo FerroniFounda-tion for partial financial supportand helpful discussions.
dc.publisherWiley-VCH Verlag
dc.rights© 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim
dc.sourceChemphyschem : a European journal of chemical physics and physical chemistry
dc.subjecthofmeister series
dc.subjectchemical kinetics
dc.subjectiodination
dc.subjectspecific ion effects
dc.subjecttransition state theory
dc.titleSpecific Anion Effects on the Kinetics of Iodination of Acetone
dc.typeJournal article
local.identifier.citationvolume17
dc.date.issued2016-08-18
local.publisher.urlhttp://www.wiley-vch.de/en/
local.type.statusPublished Version
local.contributor.affiliationMazzini, V., Department of AppliedMathematicsResearch School of Physical Sciences and EngineeringInstitute of Advanced Studies, The Australian National University
local.contributor.affiliationNinham, B. W., Department of AppliedMathematicsResearch School of Physical Sciences and EngineeringInstitute of Advanced Studies, The Australian National University
local.identifier.essn1439-7641
local.bibliographicCitation.issue16
local.bibliographicCitation.startpage2567
local.bibliographicCitation.lastpage2571
local.identifier.doi10.1002/cphc.201600241
CollectionsANU Research Publications

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