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Issue 28, 2017
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Fluorescent sensing and selective adsorption properties of metal–organic frameworks with mixed tricarboxylate and 1H-imidazol-4-yl-containing ligands

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Abstract

Herein, two metal–organic frameworks (MOFs), [Co43-OH)2(L)(BTB)2(H2O)3]·5.6H2O (1) and [Cd3(L)2(BTB)22-H2O)]·7.4H2O (2), based on 1,3-di(1H-imidazol-4-yl)benzene (L) and 1,3,5-tri(4-carboxyphenyl)benzene (H3BTB), respectively, have been achieved. Compound 1 is a porous three-dimensional (3D) framework with butterfly-like tetranuclear clusters as 7-connected nodes, and compund 2 is a 3D net with a different topology. Remarkably, compounds 1 and 2 exhibit selective adsorption of CO2 over N2 and methyl orange (MO) dye molecules. Magnetic measurements reveal that there are antiferromagnetic interactions within the tetranuclear cluster in 1. Furthermore, 2 was well-dispersed in different solvents, and their luminescent properties were investigated, and the results indicated that 2 could be considered as a potential luminescent probe for the detection of ketone molecules.

Graphical abstract: Fluorescent sensing and selective adsorption properties of metal–organic frameworks with mixed tricarboxylate and 1H-imidazol-4-yl-containing ligands

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Publication details

The article was received on 15 May 2017, accepted on 13 Jun 2017 and first published on 13 Jun 2017


Article type: Paper
DOI: 10.1039/C7DT01759F
Citation: Dalton Trans., 2017,46, 9022-9029
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    Fluorescent sensing and selective adsorption properties of metal–organic frameworks with mixed tricarboxylate and 1H-imidazol-4-yl-containing ligands

    Z. Liu, Y. Zhao, P. Wang, Y. Kang, M. Azam, S. I. Al-Resayes, X. Liu, Q. Lu and W. Sun, Dalton Trans., 2017, 46, 9022
    DOI: 10.1039/C7DT01759F

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