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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >The two-dimensional coordination polymer poly[di-aqua-(μ2-1H- imid-azo[4,5-f][1,10]phenanthroline)-μ4-sulfato-μ3- sulfato-dicadmium(II)]
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The two-dimensional coordination polymer poly[di-aqua-(μ2-1H- imid-azo[4,5-f][1,10]phenanthroline)-μ4-sulfato-μ3- sulfato-dicadmium(II)]

机译:二维配位聚合物聚[di-aqua-(μ2-1H-咪唑-偶氮[4,5-f] [1,10]菲咯啉)-μ4-硫酸根-μ3-硫酸根-二镉(II)]

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摘要

In the title coordination polymer, [Cd2(SO4)2(C13H8N4)(H2O)2] n , there are two crystallographically independent CdII centres with different coordination geometries. The first CdII centre is hexacoordinated by four O atoms of four sulfate ligands, one water O atom and one N atom of a 1H-imid-azo[4,5-f][1,10]phenanthroline (IP) ligand, giving a distorted octa-hedral coordination environment. The second CdII centre is heptacoordinated by four O atoms of three sulfate ligands, one water O atom and two N atoms of one chelating IP ligand, resulting in a distorted monocapped anti-trigonal prismatic geometry. The symmetry-independent CdII ions are bridged in an alternating fashion by sulfate ligands, forming one-dimensional ladder-like chains which are connected through the IP ligands to form two-dimensional layers. These two-dimensional layers are linked by inter-layer hydrogen bonds, leading to the formation of a three-dimensional supra-molecular network.
机译:在标题配位聚合物[Cd2(SO4)2(C13H8N4)(H2O)2] n中,有两个晶体学独立的CdII中心,具有不同的配位几何形状。第一个CdII中心被四个硫酸盐配体的四个O原子,一个1H-咪唑-偶氮[4,5-f] [1,10]菲咯啉(IP)配体的一个水O原子和一个N原子六配位,得到一个扭曲的八面体协调环境。第二个CdII中心由三个硫酸盐配体的四个O原子,一个水合O原子和一个螯合IP配体的两个N原子七元配位,导致扭曲的单封端反三角棱柱形几何形状。不对称的CdII离子通过硫酸盐配体以交替的方式桥接,形成一维梯状链,这些链通过IP配体连接形成二维层。这些二维层通过层间氢键连接,导致形成三维超分子网络。

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