Issue 33, 2013
From the journal:

Chemical Communications

A phenylbenzoxazole–amide–azacrown linkage as a selective fluorescent receptor for ratiometric sensing of Pb(ii) in aqueous media†

Yasuhiro Shiraishi,*a   Yoshinao Matsunaga,a   Prannicha Hongpitakponga  and  Takayuki Hiraia  

* Corresponding authors

a Research Center for Solar Energy Chemistry, and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
E-mail: shiraish@cheng.es.osaka-u.ac.jp
Fax: +81668506273
Tel: +81668506271

Abstract

A phenylbenzoxazole–amide–azacrown linkage (L) acts as a fluorescent receptor for ratiometric Pb2+ sensing in aqueous media. This is promoted by the excited state intramolecular proton transfer (ESIPT) of the amide proton to benzoxazole nitrogen via coordination of Pb2+ with amide oxygen.

Graphical abstract: A phenylbenzoxazole–amide–azacrown linkage as a selective fluorescent receptor for ratiometric sensing of Pb(ii) in aqueous media

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Article information

DOI
https://doi.org/10.1039/C3CC41151F
Article type
Communication
Submitted
12 Feb 2013
Accepted
08 Mar 2013
First published
08 Mar 2013

Chem. Commun., 2013,49, 3434-3436

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A phenylbenzoxazole–amide–azacrown linkage as a selective fluorescent receptor for ratiometric sensing of Pb(II) in aqueous media

Y. Shiraishi, Y. Matsunaga, P. Hongpitakpong and T. Hirai, Chem. Commun., 2013, 49, 3434 DOI: 10.1039/C3CC41151F

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