三联吡啶基Zn(Ⅱ)配位聚合物的合成、结构和性质

Synthesis,structure and property of a Zn(Ⅱ) coordination polymer based on terpyridine ligand

通过水热技术成功制备了一种新的配位聚合物[Zn(L)(4,4′-bpdc)]n(L=4′-(4-吡啶)-4,2′∶6′,4″-三联吡啶,4,4′-H2bpdc=联苯-4,4′-二甲酸),并通过单晶X射线衍射、元素分析和IR确定了化合物的结构.结果表明:该化合物属于三斜晶系,Pī空间群;晶胞参数a=1.015 3(2)nm,b=1.037 6(2)nm,c=1.404 8(3)nm,α=111.13(3)°,β=95.06(3)°,γ=97.92(3)°,V=1.351 9(5)nm^3,Dc=1.513g/cm3,F(000)=632,μ(Mo Kα)=0.958mm^(-1),Z=2,R=0.091 6,wR=0.210 2;该化合物为二维网络结构,相邻的单一网络通过π-π堆积作用拓展为二维双层结构.此外,对化合物的热稳定性和荧光性质也进行了研究.

A new coordination polymer [Zn（L）（4,4′-bpdc）]n（L =4′-（4-pyridyl）-4,2′：6′,4″-terpyridine,4,4′-H_2bpdc=biphenyl-4,4′-dicarboxylic acid）,has been prepared under hydrothermal conditions and structurally determined by single-crystal X-ray diffraction analyses,elemental analyses and IR.Compound crystallizes in triclinic,space group Pīwith a=1.015 3（2）nm,b=1.037 6（2）nm,c=1.404 8（3）nm,α=111.13（3）°,β=95.06（3）°,γ=97.92（3）°,V=1.351.9（5）nm^3,Dc=1.513g/cm^3,F（000）=632,μ（Mo Kα）=0.958 mm^-1,Z=2,R=0.091 6and wR=0.210 2.The structure of compound is a two dimensional（2D）network.The adjacent single networks are stacked byπ-πinteractions to form a 2Dbi-layer structure.Moreover,the thermal stability and fluorescence property of the compound have been investigated.