摘要
醋酸铅(Pb(Ac)2·3H2O)和咪唑乙酸(Hima)通过溶胶凝胶扩散合成二维配位聚合物[Pb(ima)2]n(1)的单晶。X-射线单晶衍射分析表明,晶体属于单斜晶系,P21/n空间群,晶胞参数为:a=0.8750(2)nm,b=5.1226(12)nm,c=13.292(3)nm,β=93.570(4)°,V=594.6(2)nm3,Z=2。配合物[Pb(ima)2]n是一个具有二维kgd拓扑结构的配位聚合物,二维层间又通过C-H…O氢键连接形成三维超分子结构。对配合物的红外、元素、热重及荧光等性质进行了研究。
The reaction between Pb(Ac)2·3H2O and 2-(1H-imidazole-1-yl) acetate (Hima) produced a neutral 2D coordination polymer [Pb(ima)2]n (1). The single crystals were obtained by diffusing through agar gel aqueous solution and structurally characterized by single-crystal X-ray diffraction analysis. The polymer crystallized in the monoclinic space group P21/n with the cell parameters: a=0.875 0(2) nm, b=5.122 6(12) nm, c=13.292(3) nm, β= 93.570(4)°, V=594.6(2) nm^3, Z=2. The [Pb(ima)2]n represents a (3,6)-connected 2D layer with kgd topology, which further stacks into 3D supramolecular networks through C -H … O weak interactions. The polymer is also characterized by IR, elemental analysis, fluorescent properties and thermogravimetric analysis.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第11期2057-2062,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.20771090,20931005)
陕西省自然科学基金(No.2006B07)
陕西省教育厅专项基金(No.07JK390)资助
关键词
铅配合物
柔性配体
晶体结构
荧光性质
lead complex
flexible ligand
crystal structure
luminescent properties