Issue 44, 2008
From the journal:

Physical Chemistry Chemical Physics

Excited-state proton-transfer dynamics of 1-methyl-6-hydroxyquinolinium embedded in a solid matrix of poly(2-hydroxyethyl methacrylate)

Sun-Young Park,a   Young-Shin Leea  and  Du-Jeon Jang*a  

* Corresponding authors

a School of Chemistry, Seoul National University, NS60, Seoul, Korea
E-mail: djjang@snu.ac.kr
Fax: +82-(2)-889-1568
Tel: +82-(2)-875-6624

Abstract

The excited-state intrinsic proton transfer and its geminate recombination, as well as the ground-state equilibria, of 1-methyl-6-hydroxyquinolinium embedded in a solid matrix of poly(2-hydroxyethyl methacrylate) have been studied by measuring time-resolved and steady-state fluorescence spectra along with absorption and excitation spectra. Proton transfer takes place within 3.3 ns to form ion pairs while its back-reaction occurs on the time scale of 3.7 ns. The ion pairs in the rigid alcoholic matrix go through neither diffusion to form free ions nor subsequent electronic rearrangement to form the keto species within their excited-state lifetimes.

Graphical abstract: Excited-state proton-transfer dynamics of 1-methyl-6-hydroxyquinolinium embedded in a solid matrix of poly(2-hydroxyethyl methacrylate)

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Article information

DOI
https://doi.org/10.1039/B811180D
Article type
Paper
Submitted
01 Jul 2008
Accepted
22 Aug 2008
First published
30 Sep 2008

Phys. Chem. Chem. Phys., 2008,10, 6703-6707

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Excited-state proton-transfer dynamics of 1-methyl-6-hydroxyquinolinium embedded in a solid matrix of poly(2-hydroxyethyl methacrylate)

S. Park, Y. Lee and D. Jang, Phys. Chem. Chem. Phys., 2008, 10, 6703 DOI: 10.1039/B811180D

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