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

N T  Hunt; A A  Jaye; S R  Meech

doi:10.1016/j.cplett.2005.09.063

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

N T Hunt, A A Jaye, S R Meech

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22 Citations (Scopus)

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.

Original language	English
Pages (from-to)	89-93
Number of pages	5
Journal	Chemical Physics Letters
Volume	416
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2005.09.063
Publication status	Published - 29 Nov 2005

Keywords

aqueous reverse micelles
solvation dynamics
molecules
environment
relaxation
solvents

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10.1016/j.cplett.2005.09.063

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title = "Reactive dynamics in confined water droplets: Auramine O in AOT/water/heptane microemulsions",

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.",

keywords = "aqueous reverse micelles, solvation dynamics, molecules, environment, relaxation, solvents",

author = "Hunt, {N T} and Jaye, {A A} and Meech, {S R}",

year = "2005",

month = nov,

day = "29",

doi = "10.1016/j.cplett.2005.09.063",

language = "English",

volume = "416",

pages = "89--93",

journal = "Chemical Physics Letters",

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T1 - Reactive dynamics in confined water droplets: Auramine O in AOT/water/heptane microemulsions

AU - Hunt, N T

AU - Jaye, A A

AU - Meech, S R

PY - 2005/11/29

Y1 - 2005/11/29

N2 - 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.

AB - 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.

KW - aqueous reverse micelles

KW - solvation dynamics

KW - molecules

KW - environment

KW - relaxation

KW - solvents

U2 - 10.1016/j.cplett.2005.09.063

DO - 10.1016/j.cplett.2005.09.063

M3 - Article

SN - 0009-2614

VL - 416

SP - 89

EP - 93

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

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

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Keywords

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