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Issue 8, 2018, Issue in Progress
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Structural diversity of six metal–organic frameworks from a rigid bisimidazole ligand and their adsorption of organic dyes

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Abstract

Six metal–organic frameworks, namely, [Cd2(odc)2(2,6-bin)2]·(CH3)2NH (1), [Cd2(tdc)2(2,6-bin)2(H2O)2] (2), [Cd2(bzdc)2(2,6-bin)2]·4DMF (3), [Cd2(hfdc)2(2,6-bin)2]·H2O (4), [Cd3(tpo)2(2,6-bin)3(H2O)4]·2DMF·2H2O (5) and [Zn3(btb)2(2,6-bin)]·8DMF (6) {2,6-bin = 2,6-bisimidazoylnaphthalene, H2odc = 4,4′-oxybisbenzoic acid, H2tdc = thiophene-2,5-dicarboxyl acid, H2bzdc = benzophenone-4,4′-dicarboxylic acid, H2hfdc = 2,2′-bis(4-carboxyphenyl)hexafluoropropane, H3tpo = tris-(4-carboxylphenyl)phosphine oxide and H3btb = 4,4′,4′′-benzene-1,3,5-triyl-tribenzoic acid} have been synthesized and structurally characterized. Compound 1 exhibits a three-fold interpenetration of 4T25 network. Compound 2 presents a five-fold interpenetration of dia network. Compound 3 displays a 2D → 2D three-fold interpenetration of sql layers. Compound 4 features a 2D → 3D parallel polycatenation of sql layers. Compound 5 exhibits an unusual 3,4,6-connected self-catenated network of 3,4,6T206 topology. Compound 6 shows a rare 3,8-connected self-catenated network of 3,8T72 topology. Their adsorption behaviors to organic dyes have been studied.

Graphical abstract: Structural diversity of six metal–organic frameworks from a rigid bisimidazole ligand and their adsorption of organic dyes

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Publication details

The article was received on 25 Oct 2017, accepted on 16 Jan 2018 and first published on 23 Jan 2018


Article type: Paper
DOI: 10.1039/C7RA11754J
Citation: RSC Adv., 2018,8, 4039-4048
  • Open access: Creative Commons BY license
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    Structural diversity of six metal–organic frameworks from a rigid bisimidazole ligand and their adsorption of organic dyes

    S. Liu, M. Guo, H. Guo, Y. Sun, X. Guo, S. Sun and E. V. Alexandrov, RSC Adv., 2018, 8, 4039
    DOI: 10.1039/C7RA11754J

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