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Issue 40, 2017
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A unique zinc-organic framework constructed through in situ ligand synthesis for conversion of CO2 under mild conditions and as a luminescence sensor for Cr2O72−/CrO42−

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Abstract

A novel zinc-organic framework, {[Zn3(tza)22-OH)2(H2O)2]·H2O}n (1) (H2tza = 1H-tetrazolate-5-acetic acid), was synthesized through an in situ generated tetrazole ligand under hydrothermal conditions. In compound 1, tza2− ligands and Zn2+ are interlinked to form 2D layers, which are further pillared through μ2-OH groups to generate a 3D framework. Thermogravimetric analysis and powder X-ray diffraction confirm that 1 has high thermal stability, pH stability and solvent stability. Catalytic studies show that 1 exhibits excellent catalytic ability for the cycloaddition of CO2 with epoxides under 50 °C and 0.1 MPa. Importantly, 1 can be reused at least six times. Furthermore, luminescence investigations indicate that 1 can serve as a recyclable luminescence sensor to efficiently detect Cr2O72−/CrO42−, and the detection limit can reach 10−6 mol L−1 and 4 × 10−6 mol L−1, respectively.

Graphical abstract: A unique zinc-organic framework constructed through in situ ligand synthesis for conversion of CO2 under mild conditions and as a luminescence sensor for Cr2O72−/CrO42−

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Publication details

The article was received on 01 Aug 2017, accepted on 14 Sep 2017 and first published on 14 Sep 2017


Article type: Paper
DOI: 10.1039/C7DT02819A
Citation: Dalton Trans., 2017,46, 13862-13868
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    A unique zinc-organic framework constructed through in situ ligand synthesis for conversion of CO2 under mild conditions and as a luminescence sensor for Cr2O72−/CrO42−

    T. Song, J. Dong, H. Gao, J. Cui and B. Zhao, Dalton Trans., 2017, 46, 13862
    DOI: 10.1039/C7DT02819A

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