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Issue 43, 2016
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Europium metal–organic frameworks as recyclable and selective turn-off fluorescent sensors for aniline detection

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Abstract

Seven Eu-(H)BDC compounds, [RMI][Eu2(BDC)3Cl] (R = ethyl (1), propyl (2), butyl (3), H2BDC = 1,4-benzenedicarboxylic acid), [EMI]2[Eu2(BDC)3(H2BDC)Cl2] (4), [Eu(BDC)(HCOO)] (5), [Eu(BDC)Cl(H2O)] (6) and [Eu3(BDC)4Cl(H2O)6] (7), were synthesized under ionothermal conditions. Compounds 4 and 6 behave as potential highly selective turn-off fluorescent sensors for aniline, which can be detected in mixtures of aniline with contrast organic amides or alkylbenzenes. Fluorescence quenching can be observed when compounds 4 and 6 mix with the samples containing aniline. Compounds 4 and 6 show basically unchanged emission intensities and rapid response to aniline after ten recycling tests, suggesting that the compounds have high stable recycle repeatabilities.

Graphical abstract: Europium metal–organic frameworks as recyclable and selective turn-off fluorescent sensors for aniline detection

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Publication details

The article was received on 27 Aug 2016, accepted on 29 Sep 2016 and first published on 29 Sep 2016


Article type: Paper
DOI: 10.1039/C6DT03358J
Citation: Dalton Trans., 2016,45, 17392-17400
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    Europium metal–organic frameworks as recyclable and selective turn-off fluorescent sensors for aniline detection

    H. Feng, L. Xu, B. Liu and H. Jiao, Dalton Trans., 2016, 45, 17392
    DOI: 10.1039/C6DT03358J

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