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A pillared-layer strategy to construct water-stable Zn–organic frameworks for iodine capture and luminescence sensing of Fe3+

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Abstract

A pillared-layer strategy is employed to assist the construction of two water-stable Zn-based metal–organic frameworks (MOFs) in this work, [ZnL(Bipy)]·0.5H2O (1) and [ZnL(Bpyb)]·1.5H2O (2) (H2L = 5-(pyridine-4-yl)isophthalic acid, Bipy = 4,4′-bipyridine, and Bpyb = 1,4-bis(pyrid-4-yl)benzene). The linkage of Zn centers and L2− ligands affords the layer structures, which are further pillared by the linear N-donor ligands to the three-dimensional architectures. The “pillars” with diverse molecular lengths lead to different pore sizes in 1 and 2, which show different sorption behaviors for iodine capture. Additionally, the photoluminescence properties of compounds 1 and 2 were investigated. Moreover, the photoluminescence sensing experiment indicates that compound 1 can be considered to be a promising selective sensor for Fe3+.

Graphical abstract: A pillared-layer strategy to construct water-stable Zn–organic frameworks for iodine capture and luminescence sensing of Fe3+

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Publication details

The article was received on 12 Oct 2018, accepted on 28 Nov 2018 and first published on 29 Nov 2018


Article type: Paper
DOI: 10.1039/C8DT04091E
Citation: Dalton Trans., 2018, Advance Article
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    A pillared-layer strategy to construct water-stable Zn–organic frameworks for iodine capture and luminescence sensing of Fe3+

    D. Wang, D. Zhang, S. Han, J. Pan, Z. Xue, J. Li and G. Wang, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT04091E

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