Two coordination polymers [Cd 3 (CPIDA) 2 (bib)(H 2 O) 2 ] n 1 and {[Zn 6 (CPIDA) 4 (bix) 3 ]·8H 2 O} n 2 (H 3 CPIDA = N -(4-carboxyphenyl) iminodiacetic acid, bib = 1,4-bis(N-imidazolyl)butane, bix = 1,4-bis(imidazol-1-ylmethyl)benzene), have been hydrothermally synthesized and characterized by analytical and IR spectroscopic data. Compound 1 displays an interesting 3D framework with trinodal (4,5)-connected topology, consisting of (4,4) rectangular grid double layers linked by trans- bib ligands. In 2 , the corrugated nets with couples of central symmetrical chains constructed by CPIDA 3− and bridging trans -bix ligands are pillared by infinite tubes made from CPIDA 3− and cis -bix ligands to build a new 3D porous framework with parallelogram-shaped channels, exhibiting a pentanodal (3,4)-connected topology. Moreover, compounds 1 and 2 show intense solid state fluorescence at room temperature.

中文翻译：

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柔性N-（4-羧基苯基）亚氨基二乙酸和辅助配体衍生的Zn（II）和Cd（II）配位聚合物的合成和晶体结构

两种配位聚合物[Cd 3（CPIDA）2（bib）（H 2 O）2] n 1和{[Zn 6（CPIDA）4（bix）3]·8H 2 O} n 2（H 3 CPIDA = N- （4-羧基苯基）亚氨基二乙酸，bib = 1,4-双（N-咪唑基）丁烷，bix = 1,4-双（咪唑-1-基甲基）苯）已水热合成并通过分析和红外光谱进行了表征数据。化合物1显示了一个有趣的3D框架，该框架具有三节点（4,5）连接的拓扑结构，该拓扑结构由（4,4）矩形网格双层组成，这些双层网格由反式配位体相连。在图2中，由CPIDA 3−和顺式bix配体桥接的带有一对中心对称链的波纹状网由CPIDA 3−和顺式bix配体制成的无限管支撑，以构建具有平行四边形形状通道的新3D多孔框架，呈现五极（3,4）连接的拓扑。而且，