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Issue 27, 2020
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Bis-biphenylacrylonitrile bridged with crown ether chain: a novel fluorescence sensor for Fe3+ in aqueous media

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Abstract

The design and synthesis of novel fluorescence sensors for Fe3+ in aqueous media have important prospects for practical applications. In this work, the novel bis-biphenylacrylonitrile bridged with crown ether chains 3a–3c were prepared in yields of 73–80%. Compounds 3a–3c exhibited high fluorescence in aqueous media based on the AIE effect. The sensing abilities for a series of metal ions suggested that the compound 3b possessed the selective detection for Fe3+ in aqueous media with strong fluorescence quenching. The detection limit of compound 3b for Fe3+ was 1.67 × 10−7 M and the sensing mechanism was proposed with the assistance of 1H NMR and MS studies. Compound 3b displayed excellent fluorescence imaging properties with a sensing ability for Fe3+ in living cell systems, indicating the good application prospect for sensing Fe3+ in aqueous media and complex environments.

Graphical abstract: Bis-biphenylacrylonitrile bridged with crown ether chain: a novel fluorescence sensor for Fe3+ in aqueous media

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Supplementary files

Article information


Submitted
12 May 2020
Accepted
27 May 2020
First published
28 May 2020

New J. Chem., 2020,44, 11746-11751
Article type
Paper

Bis-biphenylacrylonitrile bridged with crown ether chain: a novel fluorescence sensor for Fe3+ in aqueous media

H. Ma, R. Wu, J. Xiong, H. Guo and F. Yang, New J. Chem., 2020, 44, 11746
DOI: 10.1039/D0NJ02412K

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