配合物[Zn（H2O）2（PAA）]·（H2O）2的合成及结构表征

Synthesis and Characterization of [Zn （H2O）2（PAA）]·（H2O）2 Coordination Compound

采用溶剂热方法,通过ZnCl2和4-(5-嘧啶基)间苯二甲酸(H2PAA)在混合溶剂DMF/H2O中反应制备得到具有光致发光性能的配合物[Zn(H2O)2(PAA)]·(H2O)2。利用X射线单晶衍射、X射线粉末衍射、傅里叶变换红外光谱和热重分析等对配合物进行了充分的结构表征。采用固态荧光光谱研究了配合物的光致发光性能。X-射线单晶衍射分析表明配合物中的锌离子和PAA^2-配体中的氧原子及氮原子配位,形成具有(4,4)菱形网格形状的一维层,该一维层状结构沿c轴交错堆叠在一起形成二维多孔结构。

The synthesis and fluorescent properties study of photoluminescent MOFs lay a foundation for the development of photoluminescent materials and photoluminescent devices.A photoluminescent coordination compound [Zn(H 2O) 2(PAA)]·(H 2O) 2 was synthesized by using the coordination reaction of ZnCl 2 and 4-(5-pyrimidinyl)isophthalic acid under solvothermal conditions in DMF/H 2O (1:1).[Zn(H 2O) 2(PAA)]·(H 2O) 2 was characterized by X-ray diffraction (XRD),powder X-ray diffraction (PXRD),fourier transform infrared spectrometer (FT-IR) and thermogravimetric analyses (TGA),and the fluorescent properties were studied.The XRD analysis revealed that Zn ions was coordinated with the oxygen atoms and nitrogen atoms from PAA^2-ligands to form a 1D layer structure with (4,4) rhombic grid in the ab plane.The 1D layer structure stacked together with an interlaced stacking style along the c axis to form the 2D porous structure.