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Substituent Effects at the 5-Position of 3-[Bis(pyridine-2-ylmethyl)amino]-BODIPY Cation Sensor Used for Ratiometric Quantification of Cu2+

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Title: Substituent Effects at the 5-Position of 3-[Bis(pyridine-2-ylmethyl)amino]-BODIPY Cation Sensor Used for Ratiometric Quantification of Cu2+
Authors: Hafuka, Akira Browse this author
Kando, Ryosuke Browse this author
Ohya, Kohei Browse this author
Yamada, Koji Browse this author →KAKEN DB
Okabe, Satoshi Browse this author →KAKEN DB
Satoh, Hisashi Browse this author →KAKEN DB
Issue Date: 15-Mar-2015
Publisher: 日本化学会
Journal Title: Bulletin of the Chemical Society of Japan
Volume: 88
Issue: 3
Start Page: 447
End Page: 454
Publisher DOI: 10.1246/bcsj.20140273
Abstract: In this paper, we investigated the effects of substitution at the 5-position of an asymmetric BODIPY cation sensor to tune its spectroscopic, photophysical, and cation-sensing properties. We introduced substituent groups with differing electron density at the 5-position of 3-[bis(pyridine-2-ylmethyl)amino]-BODIPY, which contains a cation recognition moiety at the 3-position of the BODIPY core, to develop four sensors which all exhibited distinctive ratiometric spectral changes in the presence of Cu2+. Aromatic substitution increased the Stokes shift. Substitution with the electron-withdrawing sulfonylphenyl group resulted in the highest fluorescence quantum yield, largest absorption coefficient, and largest spectral shift in the presence of Cu2+. The sulfonylphenyl-substituted sensor also exhibited excellent selectivity for Cu2+.
Type: article (author version)
URI: http://hdl.handle.net/2115/58602
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 久

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