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基于苯并咪唑-5-羧酸和对苯二甲酸配体构筑的二维镉配位聚合物的合成、晶体结构及荧光性质(英文) 被引量:6

Synthesis, Structure and Photoluminescent Property of One 2D Cadmium Complex Based on 1H-benzimidazole-5-carboxylic Acid and 1,4-Benzenedicarboxylic Acid
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摘要 水热条件下利用苯并咪唑-5-羧酸,1,4-对苯二甲酸和Cd(NO3)2·4H2O为反应物合成出了一个配位聚合物{[Cd(Hbic)(bdc)1/2]·H2O}n(1),并分别用元素分析,红外谱图,热重分析,X-射线粉末衍射和X-射线单晶衍射对其结构进行表征。结构分析表明该化合物为二维层状结构,其中每个独立的层都是由两种芳环羧酸配体连接链状的[Cd(COO)]n次级构筑单元所构成,有趣的是在二维层中还存在着笼状的空腔结构。邻近的二维层之间通过分子间氢键和π-π堆积作用进一步扩展为三维超分子结构。荧光谱图表明常温固态下配合物1发射绿色荧光,最大发射峰位于506 nm。 A new coordination polymer, {[Cd(Hbic)(bdc)1/2]·H2O}n (1), has been synthesized by the self-assembly of 1H-benzimidazole-5-carboxylic acid (Hgbie), 1,4-benzenedicarboxylie acid (H2bdc) and Cd(NO3)2 ·4H2O under hydrothermal conditions, and characterized by elemental analysis, IR, TGA, XRPD and sing/e-crystal X-ray diffraction analysis. Complex 1 shows a 2D layer-like structure formed by mixed aromatic carboxylic acid ligands bridging chain-like [Cd(COO)]n SBUs, in which there exists cage-like cavity.These 2D layers are extended into a 3D supramolecular framework by intermolecular hydrogen bonds and π-π packing interactions. The photoluminescense of complex 1 in the solid state at room temperature have been studied.
作者 战佩英
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2014年第7期1629-1634,共6页 Chinese Journal of Inorganic Chemistry
基金 吉林省教育厅"十二五"科学技术研究(吉教科合字[2014]第559号)资助项目
关键词 水热合成 晶体结构 镉配合物 芳香羧酸配体 荧光性质 hydrothermal synthesis crystal structure Cd(Ⅱ) complex aromatic carboxylate ligand photoluminescent property
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  • 2梅艳,钟昀.双水杨醛缩邻苯二胺双希夫碱过渡金属(Ni,Cu,Cd)配合物的合成、结构及其荧光性质研究[J].江西化工,2010,26(4):64-68. 被引量:5
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