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)(H_2tdc=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。
Two new alkaline earth metal coordination polymers [Ca(tdc)(DMF)2]n (1) and [Ba(tdc)], (2) (H2tdc=2,5- thiophene diearboxylate) 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 .6z) topological type; whereas, complex 2 features a 3D framework consisting of elongated hexagonal channels. Solid-state photolumineseent properties indicate that complex 1 shows noticeable fluorescent emissions upon excitation in comparison to that of complex 2.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2017年第7期1305-1312,共8页
Chinese Journal of Inorganic Chemistry
基金
内蒙古自治区自然科学基金(No.2014BS0206)
国家留学基金委(No.201408155050)资助项目
关键词
配位聚合物
碱土金属
晶体结构
荧光
coordination polymer
alkaline earth metal
crystal structure
fluorescence