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首页> 外文期刊>Crystal growth & design >Syntheses, structures, and physical properties of three novel metal-organic frameworks constructed from aromatic polycarboxylate acids and flexible imidazole-based synthons
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Syntheses, structures, and physical properties of three novel metal-organic frameworks constructed from aromatic polycarboxylate acids and flexible imidazole-based synthons

机译:由芳族多羧酸和柔性咪唑基合成子构建的三种新型金属有机骨架的合成,结构和物理性质

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摘要

Three novel interesting coordination polymers, [Cd-3(SIP)(2)(bbi)(5)center dot 3H(2)O](n) (1), [Co-3(SIP)(2)(bix)(4)(2H(2)O)center dot 2H(2)O](n) (2), and [Cd(2,5-pydc)(2)(bix)(1.5)center dot H2O](n) (3) (SIP = 5-sulfoisophthalic acid monosodium sa bbi = 1,1'-(1,4-butanediyl)bis(imidazole); bix = 1,4-bis(imidazol-1-ylmethyl)-benzene; 2,5-pydc = pyridine-2,5-dicarboxylic acid), have been isolated under hydrothermal conditions and structurally characterized. Polymer 1 has a 3D complicated framework comprised of an infinite 1D ladder-like chain and 2D layer structure. Polymer 2 features a 3D hydrated framework with uncoordinated water molecules trapped in the pores. Polymer 3 is a 2D infinite layer framework, which is further interconnected by hydrogen-bond interactions to lead to a 3D supramolecular architecture. Compounds 1 and 3 exhibit medium-strong fluorescent emissions in the solid state at room temperature and could be significant in the field of photoactive materials.
机译:三种新颖有趣的配位聚合物,[Cd-3(SIP)(2)(bbi)(5)中心点3H(2)O](n)(1),[Co-3(SIP)(2)(bix) (4)(2H(2)O)中心点2H(2)O](n)(2)和[Cd(2,5-pydc)(2)(bix)(1.5)中心点H2O] [n )(3)(SIP = 5-磺基间苯二甲酸一钠盐; bbi = 1,1’-(1,4-丁二基)双(咪唑); bix = 1,4-双(咪唑-1-基甲基)-苯; 2,5-pydc =吡啶-2,5-二羧酸)已在水热条件下分离并进行了结构表征。聚合物1具有3D复杂框架,该框架由无限的1D梯形链和2D层结构组成。聚合物2具有3D水化骨架,其中不协调的水分子滞留在孔隙中。聚合物3是2D无限层框架,通过氢键相互作用进一步相互连接,从而形成3D超分子体系。化合物1和3在室温下呈固态呈现中等强度的荧光发射,在光敏材料领域可能很重要。

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