Syntheses and characterizations of three coordination polymers based on dipyridylbenzoates and 1,4-bezenedicarboxylate
作者:Kother Osman Ashiry、Ya-Hui Zhao、Kui-Zhan Shao、Zhong-Min Su、Guang-Juan Xu
DOI:10.1016/j.poly.2008.12.056
日期:2009.4
Abstract Three coordination polymers, namely [Ni(3,4-pmb)(bdc)0.5] (1), [Co(3,5-pmb)(bdc)0.5] (2) and [Cd(3,5-pmb)(bdc)0.5] (3) (3,4-pmb = 3,4-bis[4-pyridylmethyleneoxyl]benzoate, 3,5-pmb = 3,5-bis[4-pyridylmethyleneoxyl]benzoate and bdc = 1,4-benzenedicarboxylate), have been synthesized by the hydrothermal method and structurally characterized. The X-ray structural analysis reveals that the three complexes
摘要三种配位聚合物,即[Ni(3,4-pmb)(bdc)0.5](1),[Co(3,5-pmb)(bdc)0.5](2)和[Cd(3,5-pmb) )(bdc)0.5](3)(3,4-pmb = 3,4-双[4-吡啶基亚甲基氧基]苯甲酸酯,3,5-pmb = 3,5-双[4-吡啶基亚甲基氧基]苯甲酸酯和bdc = 1, (4-苯二甲酸),已通过水热法合成并进行了结构表征。X射线结构分析表明,这三种复合物具有不同的结构基序。配合物1具有三维(3D)三重互穿的Diamondiod体系结构,并在单斜C2 / c空间群中结晶,其中每个Ni(II)原子均与其他四个Ni(II)中心相连,从而形成a (4,4)菱形网络。配合物2是(3D)四重互穿的聚轮烷,在单斜P2(1)/ c空间群中结晶。它由四个等效的独立3D单元构造而成,并且相互缠绕在一起,形成3D四重结构。配合物3是2D网络,其中两个Cd(II)