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Issue 7, 2018
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Fluorescent zinc(II)-based metal–organic frameworks for nitroaromatics sensing

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A new structural metal–organic framework with fluorescence properties, namely Zn4(BTC)2(OH)2(CH3OH)6 (NJMU-001), was synthesized by using 1,3,5-benzenetricarboxylic acid (H3BTC) and zinc nitrate through a solvothermal reaction. In order to obtain good single crystals of NJMU-001, the factors affecting the reaction, such as the reaction temperature, reaction time, solvent and metal salt/ligand molar ratios, were studied. The phase purity of NJMU-001 was investigated via powder X-ray diffraction analysis, elemental analysis and FT-IR spectroscopy. Gas sorption measurements revealed that NJMU-001 was microporous and thermogravimetric analysis indicated that it was thermally stable under 200 °C. Fluorescence study of NJMU-001 in an N,N-dimethylformamide medium showed blue emission at 435 nm upon excitation at 370 nm. This emissive property was used for sensitive sensing of toxic and explosive nitroaromatics by exhibiting fluorescence quenching.

Graphical abstract: Fluorescent zinc(ii)-based metal–organic frameworks for nitroaromatics sensing

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The article was received on 14 Dec 2017, accepted on 14 Feb 2018 and first published on 15 Feb 2018

Article type: Paper
DOI: 10.1039/C7NJ04966H
Citation: New J. Chem., 2018,42, 5162-5167

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    Fluorescent zinc(II)-based metal–organic frameworks for nitroaromatics sensing

    Y. Ma, G. Xu, F. Wei, Y. Cen, Y. Song, M. Shi, X. Xu, M. Sohail and Q. Hu, New J. Chem., 2018, 42, 5162
    DOI: 10.1039/C7NJ04966H

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