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Issue 5, 2018
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Selective fluorescent sensing and photocatalytic properties of three MOFs based on naphthalene-1,4-dicarboxylic acid and 2,4,5-tri(4-pyridyl)-imidazole

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Abstract

The solvothermal reactions of MII (M = Mn, Zn, Cd) ions with naphthalene-1,4-dicarboxylic acid (H2L) and 2,4,5-tri(4-pyridyl)-imidazole (Htpim) gave rise to three MOFs, [Mn(L)0.5(L)0.5(Htpim)2]n (1), [Zn4(L)4(Htpim)2]n (2) and [Cd4(L)4(Htpim)2(DMF)2]n (3). Single-crystal X-ray diffraction analyses indicate that compounds 1–3 display diverse topologies. 1 possesses a 2D 44 network constructed by linking Mn centers, compound 2 exhibits a 3D (3,4,6)-connected {4·62}2{42·64}2{42·68·82·103} net interlinked by [Zn2L4] units, while compound 3 presents a 3D (3,7)-connected {42·5}{46·55·68·72} framework assembled by dinuclear Cd nodes. 1 and 3 display high sensitivity in the detection of nitrobenzene (NB) as fluorescent sensors and Ca2+ or Co2+ ions as luminescent probes. Moreover, 3 exhibits a relatively good photocatalytic activity towards the degradation of rhodamine B (RhB) in aqueous solution under UV irradiation.

Graphical abstract: Selective fluorescent sensing and photocatalytic properties of three MOFs based on naphthalene-1,4-dicarboxylic acid and 2,4,5-tri(4-pyridyl)-imidazole

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Publication details

The article was received on 19 Sep 2017, accepted on 23 Jan 2018 and first published on 24 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ03530F
Citation: New J. Chem., 2018,42, 3551-3559
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    Selective fluorescent sensing and photocatalytic properties of three MOFs based on naphthalene-1,4-dicarboxylic acid and 2,4,5-tri(4-pyridyl)-imidazole

    J. Wang, R. Zhang, Y. Cao, Y. Li, Y. Wang and Q. Wang, New J. Chem., 2018, 42, 3551
    DOI: 10.1039/C7NJ03530F

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