Issue 2, 2010
From the journal:

Photochemical & Photobiological Sciences

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

Tuyoshi Fukaminato,*ab   Masaaki Tanaka,c   Takao Doi,c   Nobuyuki Tamaoki,a   Tetsuro Katayama,d   Arabinda Mallick,d   Yukihide Ishibashi,d   Hiroshi Miyasaka*d  and  Masahiro Irie*e  

* Corresponding authors

a Research Institute for Electronic Science, Hokkaido University, N20, W10, Kita-ku, Sapporo, Japan
E-mail: tuyoshi@es.hokudai.ac.jp
Fax: +81-11-706-9350

b PREST, Japan Science and Technology Agency (JST), Japan

c Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, Japan

d Division of Frontier Materials Science, Graduate School of Engineering Science, and Center for Quantum Science and Technology under Extreme Conditions, Osaka University, Toyonaka, Osaka, Japan
E-mail: miyasaka@chem.es.osaka-u.ac.jp
Fax: +81-6-6850-6241

e Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo, Japan
E-mail: iriem@rikkyo.ac.jp
Fax: +81-3-3985-2397

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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Article information

DOI
https://doi.org/10.1039/B9PP00131J
Article type
Paper
Submitted
14 Oct 2009
Accepted
25 Nov 2009
First published
06 Jan 2010

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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