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On the coherent description of diffusion-influenced fluorescence quenching experiments II: early events

Authors
Angulo, Gonzalo
Kattnig, Daniel R.
Grampp, Günter
Published in Chemistry - A European Journal. 2010, vol. 16, no. 7, p. 2291 - 2299
Abstract In a previous article we showed how to perform and analyze steady-state and nanosecond time-resolved experiments on fluorescence quenching by electron transfer in a coherent manner. Now, by making use of a superior time resolution, we explore the first stages of this kind of reaction. The novel information gained enables us to merge the results on the viscosity and the driving-force dependencies of the reaction rate. A unique set of parameters for a single reaction channel suffices to describe all the results in the frame of differential encounter theory for diffusion-influenced, bimolecular, remote electron-transfer reactions. The inclusion of the solvent structure is crucial for the understanding of the reaction kinetics. To the authors best knowledge, this is the first time that such a comprehensive set of data has been successfully and jointly explained in the field, with physically sound parameters for electron-transfer reactions.
Keywords DiffusionDifferential encounter theoryElectron transfer fluorescenceQuenching
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ANGULO, Gonzalo et al. On the coherent description of diffusion-influenced fluorescence quenching experiments II: early events. In: Chemistry - A European Journal, 2010, vol. 16, n° 7, p. 2291 - 2299. https://archive-ouverte.unige.ch/unige:6467

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Deposited on : 2010-05-04

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