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Reactive dynamics in confined water droplets: Auramine O in AOT/water/heptane microemulsions

Hunt, N T and Jaye, A A and Meech, S R (2005) Reactive dynamics in confined water droplets: Auramine O in AOT/water/heptane microemulsions. Chemical Physics Letters, 416 (1-3). pp. 89-93. ISSN 0009-2614

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Abstract

The excited state reaction of a diphenyl methane dye, auramine O (AO), has been studied in water/AOT/heptane reverse micelles. When compared with bulk aqueous solution the reaction rate is strongly suppressed in the dispersed phase, and the kinetics are non-single exponential. The reaction rate is a strong function of micelle radius, increasing with increasing size. The results are discussed in terms of increased friction along the reactive coordinate due to confinement of the water phase and equilibrium between AO bound at the water/surfactant interface and in the dispersed water phase. (c) 2005 Elsevier B.V. All rights reserved.

Item type: Article
ID code: 30945
Keywords: aqueous reverse micelles, solvation dynamics, molecules, environment, relaxation, solvents, Physics, Chemistry, Physics and Astronomy(all), Physical and Theoretical Chemistry
Subjects: Science > Physics
Science > Chemistry
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 18 May 2011 16:34
    Last modified: 05 Sep 2014 08:42
    URI: http://strathprints.strath.ac.uk/id/eprint/30945

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