2,3-吡啶二酸构筑的锌(Ⅱ)配位聚合物的水热合成、结构和荧光性质(英文)

Hydrothermal Synthesis,Crystal Structure and Luminescence of a Zn(Ⅱ)Coordination Polymer Based on 2,3-Pyridinedicarboxylic Acid

以2，3-吡啶二酸（2，3-pydc）为配体，利用水热法合成了1个新颖的配位聚合物[Zn（2，3-pydc）]n（1），并通过元素分析、红外光谱、热重分析和X-射线单晶衍射对其结构进行了表征．该配合物属于单斜晶系，P21／c空间群．相邻的Zn（Ⅱ）离子由2个μ2-O桥连成双核结构{Zn2}，这些{Zn2}进而通过2，3-吡啶二酸根连接成复杂的2D层状结构．拓扑分析发现，配合物1是双节点的（3，6）-连网格，拓扑符号为（4^3）2（4^5·6^6·8^3），是一种少见的CdI：型拓扑网格．对配合物1的荧光性质进行了研究．

A novel coordination polymer [Zn （2,3-pydc） ]n （1） based on 2,3-pyridinedicarboxylic acid （2,3- pydc） has been hydrothermally synthesized and characterized by elemental analysis, infrared spectrum （IR）, thermogravimetric analysis （TGA） and single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic space group P21/c. In complex 1, two adjacent Zn（ Ⅱ ） centers are bridged by twoμ2-O bridges into the binucle- ar {Zn2} units, which are further linked by 2,3-pydcz ligands to form a complicated two-dimensional （2D） lay- er, the 2D layer defines as a （3,6）-connected network with （4^3）2（4^6 · 6^6 · 83） topology symbol, which belongs to the rare CdI2-type network. In addition, the luminescence of complex 1 was discussed.