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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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Publication details

The article was received on 14 Oct 2009, accepted on 25 Nov 2009 and first published on 06 Jan 2010


Article type: Paper
DOI: 10.1039/B9PP00131J
Citation: Photochem. Photobiol. Sci., 2010,9, 181-187
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    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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