Two new fluorescence turn-on chemosensors for cyanide based on dipyridylamine and aurone moiety

•Two new dipyridylamine substituted aurone compounds were synthesized.•The compounds can recognize CN− ions with fluorescence turn-on response.•The chemosensors exhibit good repeatability. Two new fluorescence turn-on chemosensors for cyanide based on dipyridylamine substituted aurone moiety have be...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2014-08, Vol.199, p.115-120
Main Authors: Chen, Huihui, Liu, Zhiqiang, Cao, Duxia, Lu, Shanshan, Pang, Jingzhong, Sun, Yunhui
Format: Article
Language:English
Subjects:
Aurone
Chemosensor
Cu(II) ion
Cyanide anion
Dipyridylamine
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Summary:•Two new dipyridylamine substituted aurone compounds were synthesized.•The compounds can recognize CN− ions with fluorescence turn-on response.•The chemosensors exhibit good repeatability. Two new fluorescence turn-on chemosensors for cyanide based on dipyridylamine substituted aurone moiety have been synthesized. The strong yellow-green fluorescence of the compounds were completely quenched after the addition of Cu(II) ions because of the complexation between the compounds and Cu(II) ions and were almost recovered after the addition of cyanide owing to the strong bonding ability between cyanide and Cu(II) ions, which lead to the removal of copper ions from the complexes. The chemosensors exhibit good repeatability.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2014.03.106