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Abstract Two water-stable Cd(II)-MOFs, [CdL0.5(H2O)] (1) and {[Cd3(H2L)(dtb)2(H2O)]·3H2O}n (2) [H4L = 1,1'-(ethane-1,2-diyl)bis (1H-imidazole-4,5-dicarboxylic acid); H2dtb = 1,4-di (1H-tetrazol-5-yl)benzene) has been hydrothermally synthesized and characterized by elemental analyses, IR, TG, and X-ray single-crystal diffraction. Complex… Click to show full abstract
Abstract Two water-stable Cd(II)-MOFs, [CdL0.5(H2O)] (1) and {[Cd3(H2L)(dtb)2(H2O)]·3H2O}n (2) [H4L = 1,1'-(ethane-1,2-diyl)bis (1H-imidazole-4,5-dicarboxylic acid); H2dtb = 1,4-di (1H-tetrazol-5-yl)benzene) has been hydrothermally synthesized and characterized by elemental analyses, IR, TG, and X-ray single-crystal diffraction. Complex 1 exhibits a 3D 6-connected framework based on L4− ligands μ6-linking [Cd2O2] unit, and complex 2 possesses a 3D (3,8)-connected porous framework built by H2L2− and dtb2− ligands bridging [Cd3O2] units. The luminescence properties were investigated, showing that 1 and 2 can display high sensitivity and selectivity for detecting Fe3+, Cr(VI) and MnO4− ions in aqueous solutions via luminescence quenching effects. Furthermore, possible sensing mechanism was investigated in this paper.
Journal Title: Journal of Solid State Chemistry
Year Published: 2021
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