4,4′-二(4氢-1,2,4-三氮唑-4)-1,1′-联苯锌(Ⅱ)配合物的合成、结构及热分解特性  

Synthesis,structure and thermal decomposition behavior of coordination compound with 4,4′-di(4H-1,2,4-triazazole-4-yl)-1,1′-biphenyl and Zn(Ⅱ)

作　　者：屈晓妮 潘桂旭 褚超 吴柏君 张哲 王文浩 QU Xiaoni;PAN Guixu;CHU Chao;WU Baijun;ZHANG Zhe;WANG Wenhao(School of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《西安工程大学学报》2021年第6期24-30,共7页Journal of Xi’an Polytechnic University

基　　金：陕西省自然科学基金(2019JQ-845)。

摘　　要：为提高三唑类配合物的热稳定性,在水和乙腈混合溶剂中以4,4′-二-(4氢-1,2,4-三氮唑-4)-1,1′-联苯(dtb)与Zn^(2+)为原料,采用溶剂热法合成1例锌(Ⅱ)配合物[Zn(dtb)Cl_(2)]·2H_(2)O(1)。通过X-射线单晶衍射仪、红外光谱仪、热重分析仪、紫外分光光度仪等对配合物1的结构和理化性质进行研究。结果表明:配合物1属于单斜晶系,I1_(2)/a_(1)空间群,晶胞参数为a=1.073031(13)nm,b=1.387946(18)nm,c=1.300051(16)nm,α=γ=90°,β=93.7511(11)°,V=1.93203(4)nm^(3)。相比于dtb配体,配合物1的紫外可见吸收位置发生明显红移。TG实验显示,配合物1主框架的热稳定性较dtb配体和其他三唑类配合物明显提高。In order to improve the thermal stability of coordination compound with triazole derivative,a new coordination compound,[Zn(dtb)Cl_(2)]·2H_(2)O(1),was synthesized by 4,4′-di(4H-1,2,4-triazazole-4-yl)-1,1′-biphenyl(dtb)and Zn^(2+) in a mixed solvent of water and acetonitrile with solvothermal method.The structure and physicochemical properties of compound 1 were studied by X-ray single crystal diffractometer,infrared spectrometer,thermogravimetric analyzer and ultraviolet spectrophotometer.The results show that compound 1 belongs to the monoclinic crystal system,I1_(2)/a_(1) space group.And these cell parameters are respectively a=1.073031(13)nm,b=1.387946(18)nm,c=1.300051(16)nm,α=γ=90°,β=93.7511(11)°,V=1.93203(4)nm^(3).Compared with the dtb ligand,the ultraviolet-visible absorption position of compound 1 has a significant red shift.TG experiment reveals that compound 1 occupies excellent thermal stability compared with the dtb ligand and other compounds with triazole derivative.

关 键 词：4 4′-二-(4氢-1 2 4-三氮唑-4)-1 1′-联苯 溶剂热法 晶体结构 热重分析 

分 类 号：O611.4[理学—无机化学]