Fluorescent recognition of Hg2+ by a 1,1′-binaphthyl-based macrocycle: a highly selective off–on–off response

Xiangchuan Xu; Carl O. Trindle; Guoqing Zhang; Lin Pu

doi:10.1039/C5CC02457A

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Fluorescent recognition of Hg²⁺ by a 1,1′-binaphthyl-based macrocycle: a highly selective off–on–off response†

Xiangchuan Xu,^a Carl O. Trindle,^b Guoqing Zhang*^a and Lin Pu*^b

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* Corresponding authors

^a CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China
E-mail: gzhang@ustc.edu.cn
Fax: +86 551 3606607
Tel: +86 551 63606607

^b Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA
E-mail: lp6n@virginia.edu

Abstract

A 1,1′-bi-2-naphthol-based macrocyclic compound was found to show large fluorescent enhancement at a greatly red-shifted wavelength in the presence of one equiv. Hg²⁺ but not with any other metal ions. This change was visually observable from blue-greenish emission to bright yellow emission. The fluorescence was quenched when more than 2.6 equiv. Hg²⁺ was added.

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Article information

DOI: https://doi.org/10.1039/C5CC02457A
Article type: Communication
Submitted: 24 Mar 2015
Accepted: 11 Apr 2015
First published: 13 Apr 2015

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Chem. Commun., 2015,51, 8469-8472

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Fluorescent recognition of Hg²⁺ by a 1,1′-binaphthyl-based macrocycle: a highly selective off–on–off response

X. Xu, C. O. Trindle, G. Zhang and L. Pu, Chem. Commun., 2015, 51, 8469 DOI: 10.1039/C5CC02457A

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