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Specific Anion Effects on the Kinetics of Iodination of Acetone

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Date

2016-08-18

Authors

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

Journal Title

Journal ISSN

Volume Title

Publisher

Wiley-VCH Verlag

Abstract

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 the anion and of the interaction between the cationic intermediate and the anion.

Description

Keywords

hofmeister series, chemical kinetics, iodination, specific ion effects, transition state theory

Citation

URI

http://hdl.handle.net/1885/108874

Collections

ANU Research Publications

Source

Chemphyschem : a European journal of chemical physics and physical chemistry

Type

Journal article

Book Title

Entity type

Access Statement

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DOI

10.1002/cphc.201600241

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