Fluorescence photoswitching based on a photochromic pKa change in an aqueous solution

Tuyoshi Fukaminato; Emi Tateyama; Nobuyuki Tamaoki

doi:10.1039/C2CC35889A

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Fluorescence photoswitching based on a photochromic pK_a change in an aqueous solution†

Tuyoshi Fukaminato,*^a Emi Tateyama^a and Nobuyuki Tamaoki*^a

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* Corresponding authors

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

Abstract

Reversible fluorescence photoswitching of RSA-AZO dyad 1 was clearly demonstrated in an acidic aqueous solution. The fluorescence photoswitching mechanism is based on the reversible ring opening/closing reactions of the RSA unit induced by a photochromic pK_a change along with the photoisomerization of the AZO unit.

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Article information

DOI: https://doi.org/10.1039/C2CC35889A
Article type: Communication
Submitted: 15 Aug 2012
Accepted: 19 Sep 2012
First published: 21 Sep 2012

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Chem. Commun., 2012,48, 10874-10876

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Fluorescence photoswitching based on a photochromic pK_a change in an aqueous solution

T. Fukaminato, E. Tateyama and N. Tamaoki, Chem. Commun., 2012, 48, 10874 DOI: 10.1039/C2CC35889A

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