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Four d(10) metal coordination polymers based on bis(2-methyl imidazole) spacers: syntheses, interpenetrating structures and photoluminescence properties

机译:基于双(2-甲基咪唑)间隔基的四种d(10)金属配位聚合物:合成,互穿结构和光致发光性质

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A Two bis(2-methyl imidazole) ligands have been applied to assemble four interpenetrating coordination polymers with formula [Cu2Br2(bip)](n) (1), [Cd(tdc)(bip)](n) (2), [Cd(tdc)(bib)](n) (3), and [Zn(tdc)(bib)](n) (4) (tdc = 2,5-thiophenedicarboxylate anion, bip = 1,3-bis-(imidazol-2-methyl)propane and bib = 1,4-bis(imidazol-2-methyl)butane) under hydrothermal conditions. Structural analyses reveal that complex 1 exhibits a 2-fold interpenetrating 2D net with sql topology, whereas complexes 2 and 3 feature a 3-fold interpenetrating 3D net with dmp topology. Complex 4 displays a [2 + 2] 4-fold interpenetrating 3D net with dia topology. These results provide some insight into central metal ions, anionic ligands and bis(2-methyl imidazole) ligands' geometry-driven assembly of various interpenetrating CPs. Solid-state properties of these crystalline materials, such as thermal stabilities, and powder X-ray diffraction have been investigated. Moreover, the photoluminescence behavior of complexes 1-4 is also investigated.
机译:已经应用了两个双(2-甲基咪唑)配体组装了四种互穿的配位聚合物,分子式为[Cu2Br2(bip)](n)(1),[Cd(tdc)(bip)](n)(2), [Cd(tdc)(bib)](n)(3)和[Zn(tdc)(bib)](n)(4)(tdc = 2,5-噻吩二羧酸根阴离子,bip = 1,3-双- (咪唑-2-甲基)丙烷和bib = 1,4-双(咪唑-2-甲基)丁烷)。结构分析表明,复合物1具有sql拓扑的2倍互穿2D网络,而复合物2和3具有dmp拓扑的3倍互穿3D网络。复合体4显示具有dia拓扑的[2 + 2] 4倍互穿3D网络。这些结果为中心金属离子,阴离子配体和双(2-甲基咪唑)配体的几何结构驱动的各种互穿CP的组装提供了一些见识。已经研究了这些结晶材料的固态性质,例如热稳定性和粉末X射线衍射。此外,还研究了配合物1-4的光致发光行为。

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