摘要
以氮杂环化合物2-(1H-咪唑-1-甲基)-1H-苯并咪唑(imb)和芳香多羧酸均苯四甲酸(H4btec)为配体,采用溶剂热方法制备了一个结构新颖的配合物[Cu(btec) 0.5(imb)]n(1). 单晶X射线衍射结果表明,配合物1 是由左螺旋链和右螺旋链彼此连接而成的三维结构,可以简化为4,4,4-连接的三维拓扑结构,其拓扑符号为(3^2·10^3·11)(3^2·10^4)(3^2·10^3·11). 另外还对配合物1 的红外光谱、粉末X射线衍射图谱、热稳定性以及固态荧光性能进行了研究,进一步验证了Cu(II)离子的存在能淬灭配合物的荧光.
A new complex[Cu(btec)0.5(imb)]n(1)based on 2-(1H-imidazol-1-methyl)-1H-benzimidazole (imb)and 1,2,4,5-benzenetetracarboxylic acid(H4btec)has been synthesized under solvothermal conditions. Single crystal X-ray diffraction analysis indicates that complex 1 displays a 3D framework with left- and right-handed helical chains,which can be simplified as a 4,4,4-connected 3D topology with a Schl?fli symbol of(32?103 · 11) (32·104)(32?103·11). Moreover,its IR spectra,PXRD patterns,thermogravimetric curves,and fluorescence property were studied at room temperature. The results further validated that Cu(II)ions in the complex usually quenched the fluorescence emission.
出处
《河南科学》
2016年第6期861-865,共5页
Henan Science
基金
国家自然科学基金资助项目(21471132)