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首页> 外文期刊>Crystal growth & design >Zn(II)/Cd(II) Terephthalate Coordination Polymers Incorporating Bi-, Tri-, and Tetratopic Phenylamine Derivatives: Crystal Structures and Photoluminescent Properties
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Zn(II)/Cd(II) Terephthalate Coordination Polymers Incorporating Bi-, Tri-, and Tetratopic Phenylamine Derivatives: Crystal Structures and Photoluminescent Properties

机译：掺有双，三和四位苯胺衍生物的Zn（II）/ Cd（II）对苯二甲酸酯配位聚合物：晶体结构和光致发光性能

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摘要

Using reticular chemistry allowed the design and construction of four novel Zn(II)/Cd(II) coordination polymers, [Zn (BTPA) (TPA)]center dot H2O}n (1), {[Zn(TTPA) (TPA)]center dot H2O}(n) (2); {[Cd-2(TTPA)(2)(TPA)(2)(DMF)].2H(2)O}(n) (3), and {[Cd(TTPBDA)-(TPA)(0.5)center dot DMF center dot H2O}(n) (4). They were successfully synthesized from bi-, tri-, and tetratopic phenylamine derivatives (BTPA = bis(4-:(1H-1,2,4-triazol-1-yl)phenyl)amine, TTPA = tris(4-(1H-1,2,4-triazol-1-yl)phenyl) amine, TTPBDA = N-4,N-4,N-4',N-4'-tetrakis (4-(1H-1,2,4-triazol-1-yl)phenyl)-(1,1'-biphenyl)-4,4'-diamine) incorporating a linear terephthalic acid (H(2)TPA) ligand and Zn(II)/cd(II) nitrate salts. These transparent crystals present gradually increasing dimensionality and complexity upon extension of the denticity of the phenylamine organic building blocks, as clearly supported by single-crystal X-ray analysis, infrared spectroscopy, elemental analysis, powder X-ray diffraction, and thermogravimetric analysis. Complex 1 shows two-dimensional (2D) threefold -interpenetrating layers (2D + 2D -> 2D) with the sql topology that are further formed into a three-dimensional (3D) supramolecular structure by interlayer pi center dot center dot center dot pi stacking and hydrogen-bonding interactions. Complex 2 displays 2D layers with the hcb topology that are further assembled into a 3D fourfold -interpenetrating supramolecular framework with the 3,4,4T25 topology by hydrogen-bonding interactions. Complex 3 possesses a fourfold -interpenetrating 3D (3,4,5)-connected architecture with the 3,4,5T86 topology. Complex 4 features an interesting and unusual new self-penetrating (4,6) -connected 3D topological network with the point symbol of (4(14). 8) (66), which contains a fourfold-interpenetrated 3D dia network linked by TPA(2-) ligands. The results suggest that these diverse coordination networks mainly can be adjusted by the number of 1,2,4-triazole substituents on the aniline backbones and the coordination geometries of the metal ions. Furthermore, the photoluminescence spectra and emission decay lifetimes of complexes 1-4 were examined.
机译：使用网状化学可以设计和构建四种新型的Zn（II）/ Cd（II）配位聚合物，[Zn（BTPA）（TPA）]中心点H2O} n（1），{[Zn（TTPA）（TPA） ]中心点H2O}（n）（2）; {[Cd-2（TTPA）（2）（TPA）（2）（DMF）]。2H（2）O}（n）（3）和{[Cd（TTPBDA）-（TPA）（0.5）中心点DMF中心点H2O}（n）（4）。它们是由双，三和四位苯胺衍生物（BTPA =双（4-:( 1H-1,2,4-三唑-1-基）苯基）胺，TTPA =三（4-（1H） -1,2,4-三唑-1-基）苯基）胺，TTPBDA = N-4，N-4，N-4'，N-4'-四（4-（1H-1,2,4-三唑-1-基）苯基）-（1,1'-联苯）-4,4'-二胺）掺有线性对苯二甲酸（H（2）TPA）配体和Zn（II）/ cd（II）硝酸盐。这些透明晶体在苯胺有机结构单元的密度扩展时呈现出逐渐增加的尺寸和复杂性，单晶X射线分析，红外光谱，元素分析，粉末X射线衍射和热重分析清楚地支持了这些透明晶体。配合物1显示具有sql拓扑的二维（2D）三重互穿层（2D + 2D-> 2D），这些层通过层间pi中心点中心点中心点pi堆叠进一步形成为三维（3D）超分子结构和氢键相互作用。配合物2显示具有hcb拓扑的2D层，并通过氢键相互作用进一步组装成具有3,4,4T25拓扑的3D四重互穿超分子框架。复合体3具有具有3,4,5T86拓扑的四重互穿3D（3,4,5）连接的体系结构。复合体4具有一个有趣且不寻常的新的自穿透（4,6）连接的3D拓扑网络，其点符号为（4（14）。8）（66），其中包含通过TPA链接的四重互穿的3D dia网络（2-）配体。结果表明，这些不同的配位网络主要可以通过苯胺主链上的1,2,4-三唑取代基的数量和金属离子的配位几何形状进行调节。此外，检查了配合物1-4的光致发光光谱和发射衰减寿命。

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