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Effect of SDS micelles on the reactivity of 4′-methoxyflavylium ion: A stopped-flow and photochemical study

Paper ID Volume ID Publish Year Pages File Format Full-Text
28926 44104 2007 8 PDF Available
Title
Effect of SDS micelles on the reactivity of 4′-methoxyflavylium ion: A stopped-flow and photochemical study
Abstract

The network of chemical reactions of the compound 4′-methoxyflavylium was studied in the presence of SDS micelles, using stopped-flow, UV–vis absorption and flash photolysis techniques. The results were compared with analogous experiments carried out in water. The large stabilization of the flavylium cation onto the micelles was proven to be due to an increase in the rate of the dehydration reaction, rather than a decrease of the hydration reaction; the cis–trans isomerisation of the chalcone was not affected by the micelles. It is shown that SDS micelles can be considered as an external stimulus capable of changing the system from one state to another.

Keywords
Flavylium salts; Oxygen heterocycles; SDS micelles; Stopped-flow
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Effect of SDS micelles on the reactivity of 4′-methoxyflavylium ion: A stopped-flow and photochemical study
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 185, Issues 2–3, 25 January 2007, Pages 383–390
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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