2,5-二(2′-苯并咪唑)吡啶及其锌配合物的合成、结构与性能

Synthesis,Structure and Properties of 2,5-Bis-(2′-benzimidazyl) Pyridine Ligand and Its Zinc(Ⅱ) Complex

本文利用微波法合成了2,5-二(2′-苯并咪唑)吡啶,采用水热合成技术得到了它的单晶(1)及其锌的配合物[Zn(C19H12N5)2(H2O)2].5H2O(2)。IR和X-射线单晶衍射实验测定和结构解析结果表明,化合物1由2,5-二(2′-苯并咪唑)吡啶和晶格水组成,化合物2中Zn2+离子与2,5-二(2′-苯并咪唑)吡啶的N原子配位,通过氢键作用形成1D链状结构,再通过配体间π-π作用形成三维结构。此外,TG和荧光测定分析表明化合物2具有良好的热稳定性和荧光性能。

In this paper,2,5-bis-（2′-benzimidazyl）pyridine have been synthesized by microwave irradiation.Single crystals suitable for structural determinations of 2,5-bis-（2′-benzimidazyl）pyridine（1） and its zinc（Ⅱ） complex,[Zn（C 19 H 12 N 5） 2（H 2 O） 2 ]·5H 2 O（2）,were solvothermally synthesized.The title compounds were characterized by X-ray crystallography and IR.Compound 1 consists of organic ligands and crystallization water molecules.Compound 2 was linked to form 1D chain by hydrogen bonds and further to construct 3D structure by π-π interaction between ligands.TG and FL analysis indicates that compound 2 has good thermal stability and exhibits emission in the solid state at room temperature.