基于线性含氮杂环多羧基芳香配体构筑的Co(Ⅱ)配位聚合物  

Co(Ⅱ) Coordination Polymersconstructed by Linear Nitrogenous Heterocyclic Polycarboxyl Aromatic Ligands

作　　者：张艳 乔雅楠 薛慧敏 ZHANG Yan;QIAO Ya'nan;XUE Huimin(Shanxi College of Technology,Shanxi Shuozhou 036000,China)

机构地区：[1]山西工学院,山西朔州036000

出　　处：《广州化工》2024年第21期36-39,67,共5页GuangZhou Chemical Industry

摘　　要：在溶剂热条件下以1,2,4,5-苯四羧酸(BTEC)和4,4'-联吡啶(BIPY)配体、Co(NO_(3))·6H_(2)O和N,N'-二甲基甲酰胺(DMF)等为原料,合成了一例三维框架结构的配位聚合物:[Co_(2)(BTEC)(BIPY)(DMF)_(2)]_n,X射线单晶衍射结果表明:该配位聚合物的晶胞参数为:a=10.253 7(2)A、b=13.338 3(3)A、c=11.683 9(3)A、α=90.000°、β=120.648(1)°和γ=90.000°。同时,粉末X射线衍射(PXRD)和红外光谱(IR)测试结果进一步验证了该配位聚合物具有良好的相纯度和重复性,并且红外光谱的结果与单晶结构显示出良好的一致性。除此之外,利用热重分析结果显示其良好的热稳定性。Under solvothermal conditions,1,2,4,5-benzenetetracarboxylic acid(BTEC) and 4,4'-BIPYridine(BIPY) ligands,Co(NO_(3))_(2)·6H_(2O) and N,N'-dimethylformamide(DMF) were synthesized as reactants,and the wave-like layer constructed by BTEC was further supported by BIPY to form a three-dimensional framework in which coordinated DMF molecules occupy the coordination polymer[Co_(2)(BTEC)(BIPY)(DMF)_(2)]_(n) of the 1D channel 2,the structure was analyzed by X-ray single crystal diffraction,and the unit cell parameters were as follows:a=10.253 7(2) A,b=13.338 3(3)A,c=11.683 9(3)A,α=90.000°,β=120.648(1)° and γ=90.000°.At the same time,powder X-ray diffraction(PXRD) and infrared spectroscopy(IR) were used to systematically characterize and analyze the coordination polymer,and the data of PXRD showed that the coordination polymer had good phase purity and repeatability,and the IR results showed good consistency with the single crystal structure.In addition,thermogravimetric analysis was used to study the thermal stability of synthetic products.The single crystal analysis results showed that in the coordination polymer[Co_(2)(BTEC)(BIPY)(DMF)_(2)]_n,the wave-like layer constructed by BTEC was further supported by BIPY to form a three-dimensional frame.

关 键 词：溶剂热 钴(Ⅱ)配位聚合物 晶体结构 表征 热重分析 

分 类 号：O641.4[理学—物理化学]