混合配体构筑的二维镍配位聚合物的研究(英文)

Study on two-dimensional layered Ni(Ⅱ) coordination polymer constructed with mixed ligands

通过水热反应合成了一个具有二维层状结构的配位聚合物[Ni(bbim-4)(L1)]n(bbim-4=1,4-双(咪唑-1-基)丁烷,L1=对苯二乙酸阴离子),经元素分析、红外光谱、粉末和单晶XRD对产物进行了表征.晶体属于单斜晶系,空间群为P21/n,主要晶胞参数:a=9.772 8(3),b=8.634 0(3),c=11.154 0(3),β=92.755(2),Z=2,V=940.07(5)3,Dc=1.558 mg.mm-3,μ(CuKα)=1.804 mm-1,F(000)=460.此配位聚合物具有二维聚合物层,层与层之间通过范德华力形成一个三维的超分子结构.由热重分析研究了配位聚合物的热稳定性.

A two-dimensional layered coordination polymer [Ni（bbim-4）（L1） ] n（bbim-4 = 1,1＇-（1,4-butanediyl） bis（imidazole）,L1 = p-Phenylenediacetic acid anions） was synthesized by hydrothermal reaction and characterized by elemental analysis,IR spectroscopy,powder and single-crystal X-ray crystallography.The crystal belongs to monoclinic system,space group P2 1 / n.The main cell parameters are： a = 9.772 8（3）,b = 8.634 0（3）,c = 11.154 0（3）,β = 92.755（2）,Z = 2,V = 940.07（5）3,Dc =1.558 mg.mm-3,μ（CuKα） =1.804 mm-1,F（000） =460.The coordination polymer possesses 2D polymeric layers,and the layers are connected through van der Waals forces into 3D supramolecular structures.The thermal stability of coordination polymer was studied by thermogravimetric analysis.