Issue 12, 2015

The vapour phase detection of explosive markers and derivatives using two fluorescent metal–organic frameworks

Abstract

Two fluorescent metal–organic frameworks (MOFs) [Zn(dcbpy)(DMF)]·DMF and [Dy(dcbpy)(DMF)2(NO3)] (dcbpy = 2,2′-bipyridine-4,4′-dicarboxylate) were synthesised solvothermally and structurally characterised. Uniform shape and sized microcrystals of [Zn(dcbpy)(DMF)]·DMF were also produced using microwave synthesis. The frameworks give organic linker-based fluorescence emission and demonstrate very different detection capabilities towards the explosive taggant 2,3-dimethyl-2,3-dinitrobutane (DMNB) and trinitrotoluene (TNT) derivatives; 2,4-dinitrotoulene (2,4-DNT), nitrobenzene (NB) and para-nitrotoluene (p-NT). These differences are attributed to the variation in the overall framework architecture between the two MOFs. This paper reiterates the key importance of MOF porosity in sensing applications, and highlights the value of uniform microcrystals to sensitivity.

Graphical abstract: The vapour phase detection of explosive markers and derivatives using two fluorescent metal–organic frameworks

Supplementary files

Article information

Article type
Paper
Submitted
21 Okt. 2014
Accepted
17 Febr. 2015
First published
17 Febr. 2015

J. Mater. Chem. A, 2015,3, 6351-6359

Author version available

The vapour phase detection of explosive markers and derivatives using two fluorescent metal–organic frameworks

M. Jurcic, W. J. Peveler, C. N. Savory, D. O. Scanlon, A. J. Kenyon and I. P. Parkin, J. Mater. Chem. A, 2015, 3, 6351 DOI: 10.1039/C4TA05638H

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