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Issue 32, 2015
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A porous metal–organic framework formed by a V-shaped ligand and Zn(ii) ion with highly selective sensing for nitroaromatic explosives

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Abstract

A V-shaped aromatic ligand 1,3-di(4-carboxyphenyl)benzene (H2DCPB), retaining only one branch of the H6TDCPB ligand, was utilized. The assembly of this ligand with Zn(II) ions forms a two-fold interpenetrated porous MOF with pcu topology (JUC-135). The N2 adsorption isotherm of the activated sample at 77 K revealed type-I microporous characteristics. The BET and Langmuir surface areas are calculated to be 503.7 m2 g−1 and 718.9 m2 g−1, respectively. Notably, by the fluorescence technique, JUC-135 can be used to detect nitroaromatic explosives. In particular, it is one of the most efficient porous material-based sensors for TNP (KSV = 3.7 × 104 M−1). Furthermore, JUC-135 also can distinguish TNP (blue-shift) from NB, 1,3-DNB and 2,4-DNT (red-shift) by virtue of the shift direction of fluorescence spectra.

Graphical abstract: A porous metal–organic framework formed by a V-shaped ligand and Zn(ii) ion with highly selective sensing for nitroaromatic explosives

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Publication details

The article was received on 14 May 2015, accepted on 13 Jul 2015 and first published on 13 Jul 2015


Article type: Paper
DOI: 10.1039/C5TA03537F
J. Mater. Chem. A, 2015,3, 16598-16603

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    A porous metal–organic framework formed by a V-shaped ligand and Zn(II) ion with highly selective sensing for nitroaromatic explosives

    H. He, Y. Song, F. Sun, Z. Bian, L. Gao and G. Zhu, J. Mater. Chem. A, 2015, 3, 16598
    DOI: 10.1039/C5TA03537F

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