基于2,5-噻吩二甲酸的钙(Ⅱ)和钡(Ⅱ)配位聚合物的合成、晶体结构及性质 |
Syntheses,Crystal Structures and Characterization of Ca (Ⅱ) and Ba (Ⅱ) Coordination Polymers Derived from Thiophene-2,5-dicarboxylate |
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摘要: 在溶剂热条件下,合成了2个碱土金属配位聚合物[Ca(tdc)(DMF)2]n(1)和[Ba(tdc)]n(2)(H2tdc=2,5-噻吩二甲酸),分别用元素分析、红外光谱、X射线单晶衍射、粉末衍射、热重分析和荧光光谱对它们进行了表征。结构分析表明,配合物1具有4,4连接的二维层状结构,拓扑符号为(44·62),而配合物2呈现三维网络结构。固体荧光测试表明配合物1比配合物2具有更显著的荧光性能。 |
关键词: 配位聚合物 碱土金属 晶体结构 荧光 |
基金项目: 内蒙古自治区自然科学基金(No.2014BS0206)和国家留学基金委(No.201408155050)资助项目 |
Abstract: Two new alkaline earth metal coordination polymers[Ca (tdc)(DMF)2]n(1) and[Ba (tdc)]n(2)(H2tdc=2,5-thiophene dicarboxylate) have been synthesized under solvothermal condition.They were characterized by elemental analysis,IR spectroscopy,single crystal X-ray diffraction,powder X-ray diffraction,thermogravimetric analysis,and fluorescent analysis.Complex 1 exhibits a two-dimensional (2D) layer structure with a uninodal (4,4)-connected (44·62) topological type;whereas,complex 2 features a 3D framework consisting of elongated hexagonal channels.Solid-state photoluminescent properties indicate that complex 1 shows noticeable fluorescent emissions upon excitation in comparison to that of complex 2. |
Keywords: coordination polymer alkaline earth metal crystal structure fluorescence |
投稿时间:2017-03-08 修订日期:2017-05-27 |
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张雁红,Adhikari Shiba Prasad,Day Cynthia,Lachgar Abdou.基于2,5-噻吩二甲酸的钙(Ⅱ)和钡(Ⅱ)配位聚合物的合成、晶体结构及性质[J].无机化学学报,2017,33(7):1305-1312. |
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