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Issue 2, 2010
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Fluorescence photoswitching of a diarylethene–perylenebisimide dyad based on intramolecular electron transfer

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Abstract

A fluorescent photochromic molecule, which is composed of a photochromic diarylethene (DE) and a fluorescent perylenebisimide (PBI), was synthesized and its fluorescence photoswitching was studied. The fluorescence quantum yield of the open-ring isomer is constant irrespective of solvent polarity, while that of the closed-ring isomer decreases with an increase in the dielectric constant of solvents. Femtosecond time-resolved transient and fluorescence lifetime measurements revealed that the fluorescence quenching of the closed-ring isomer is attributed to the intramolecular electron transfer from the PBI chromophore to the DE unit.

Graphical abstract: Fluorescence photoswitching of a diarylethene–perylenebisimide dyad based on intramolecular electron transfer

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Supplementary files

Article information


Submitted
14 Oct 2009
Accepted
25 Nov 2009
First published
06 Jan 2010

Photochem. Photobiol. Sci., 2010,9, 181-187
Article type
Paper

Fluorescence photoswitching of a diarylethene–perylenebisimide dyad based on intramolecular electron transfer

T. Fukaminato, M. Tanaka, T. Doi, N. Tamaoki, T. Katayama, A. Mallick, Y. Ishibashi, H. Miyasaka and M. Irie, Photochem. Photobiol. Sci., 2010, 9, 181
DOI: 10.1039/B9PP00131J

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