4.6 Article

Fluorescence quenching in organogel as a reaction medium

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Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2005.06.021

Keywords

fluorescence quenching; Stern-Volmer; photoinduced electron-transfer; diffusion rates; anthracene; organogels; gels; self-assembly

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The quenching of the anthracene fluorescence by amines has been used as a probe reaction for the determination of electron-transfer quenching rate in an organogel medium. From the Stern-Volmer analysis of the emission (steady-state and time-resolved) it has been found that quenching constants do not differ significantly in the liquid solution and in the organogel. Eventually, if the appropriate donor is used, the photoinduced electron-transfer reaction can be a diffusion-control led process in the self-organised medium. (c) 2005 Elsevier B.V. All rights reserved.

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