作者: Ya-Ke Fan , Wen-Yan Zhang , Si-Si Zhang , Yang-Tian Yan , Kai Zhong
DOI: 10.1016/J.JSSC.2018.10.017
关键词: Isophthalic acid 、 Quenching (fluorescence) 、 Crystallography 、 Crystal structure 、 Metal clusters 、 Metal-organic framework 、 Luminescence 、 SBus 、 Materials science 、 Single crystal 、 Physical and Theoretical Chemistry 、 Inorganic chemistry 、 Materials Chemistry 、 Electronic, Optical and Magnetic Materials 、 Condensed matter physics 、 Ceramics and Composites
摘要: Abstract Four new water-stable luminescent metal-organic frameworks (MOFs), namely {[Zn4(L)2(H2O)4(OH)2]·3NMP}n (1), {[Zn3(L)2(H2O)2]·Diox}n (2), {[Cd3(L)2 (H2O)5]·NMP·3H2O}n (3), and {[Pb3(L)2(NMP)2(H2O)]·H2O}n (4), (H3L = 5-(1-(carboxymethyl)pyrazol-3-yl)isophthalic acid; NMP = N-methyl-2-Pyrrolidoneand; Diox = 1,4-Dioxane) have been solvothermally synthesized with different solvents. The single crystal structures of 1–4 reveal that complexes 1 2 form the 2D (3,6)-connected kgd nets based on tetranuclear [Zn4(μ1-COO)2(μ2-COO)4] clusters trinuclear [Zn3(μ1-COO)2(μ2-COO)4] clusters, respectively. Complex 3 displays a net [Cd3(μ1-COO)4(μ2-COO)2] clusters. 4 presents layer rod-shaped SBUs. solid-state luminescence properties water stability these were investigated carefully, showing high selectivity for Fe3+, CrO42−, Cr2O72− via quenching effects low detection limits. probable mechanisms studied in detail.