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Issue 12, 2019
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Luminescent metal–organic frameworks with a 2-(4-pyridyl)-terephthalic acid ligand for detection of acetone

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Abstract

Three metal–organic frameworks (MOFs), [Zn(pta)(H2O)]n (1) {[Zn(pta)]·H2O}n (2) and {[Cd(pta)]·H2O)}n (3) [H2pta = 2-(4-pyridyl)-terephthalic acid], were isolated by hydrothermal synthesis. Single-crystal X-ray analysis reveals that compound 1 shows a 2D layer-like network, while compounds 2 and 3 feature different 3D frameworks with Schläfli symbols of {4^2.6.8^3} and {4^6.6^4} respectively, in which the deprotonated pta2− ligands are indicative of diverse coordination modes. The thermostability, water stability and luminescent properties of 1–3 were investigated in the solid state at room temperature. It is noteworthy that 3 shows high selectivity for the detection of acetone in different solvents via a fluorescence quenching mechanism. By virtue of its excellent detection efficiency, applicability in water and reusability, compound 3 can be a promising fluorescent material for practical acetone sensing.

Graphical abstract: Luminescent metal–organic frameworks with a 2-(4-pyridyl)-terephthalic acid ligand for detection of acetone

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Supplementary files

Article information


Submitted
02 Jan 2019
Accepted
19 Feb 2019
First published
19 Feb 2019

New J. Chem., 2019,43, 4800-4807
Article type
Paper

Luminescent metal–organic frameworks with a 2-(4-pyridyl)-terephthalic acid ligand for detection of acetone

F. An, C. Zhang, L. Duan, X. Liu, Z. Wang, X. Jin and W. Song, New J. Chem., 2019, 43, 4800
DOI: 10.1039/C9NJ00021F

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