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A unique zinc-organic framework constructed through in situ ligand synthesis for conversion of CO2 under mild conditions and luminescent sensor for Cr2O72-/CrO42-

Abstract

A novel zinc-organic framework, {[Zn3(tza)2(μ2-OH)2(H2O)2]•H2O}n (1) (H2tza = 1H-tetrazolate-5-acetic acid), was synthesized through in situ generated tetrazole ligand under hydrothermal condition. 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 the 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 for at least six times. Furthermore, luminescent investigations indicate that 1 can serve as a recyclable luminescent sensor to efficiently detect Cr2O72-/CrO42-, and the detection limit can reach 10-6 mol/L and 4×10-6 mol/L, respectively.

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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, Accepted Manuscript
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    A unique zinc-organic framework constructed through in situ ligand synthesis for conversion of CO2 under mild conditions and luminescent sensor for Cr2O72-/CrO42-

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

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