人工晶体学报2025，Vol.54Issue(8)：1463-1469,7.DOI:10.16553/j.cnki.issn1000-985x.2025.0026
一例铅基配位聚合物的合成、晶体结构及荧光性能研究
Synthesis,Crystal Structure and Fluorescent Properties of a Lead-Based Coordination Polymer
摘要
Abstract
In this paper,a novel coordination polymer,[Pb(PTPBA)2(H2O)]n(1),was successfully synthesized using solvothermal method with 3-[2-(5-pyridin-4-yl-4H-[1,2,4]triazol-3-yl)-phenoxy]benzoic acid(HPTPBA)and lead nitrate.The structure of 1 was characterized by elemental analysis,X-ray single crystal diffraction,X-ray powder diffraction,and infrared spectroscopy.The thermal stability and solid-state luminescence behavior of 1 were also studied.X-ray single crystal diffraction shows that 1 belongs to the triclinic crystal system P(1)space group with lattice parameters of a=1.162 15(2)nm,b=1.197 45(2)nm,c=1.504 68(2)nm and α=109.007 0(10)°,β=90.487 0(10)°,γ=115.910 0(10)°.The molecular formula is C40H28N8O7Pb.In the structure of 1,PTPBA-ligands connect Pb ions to form one-dimensional chain structures,which can be extended into three-dimensional supramolecular structures through N—H…O hydrogen bonds and π…π stacking interactions.The maximum emission wavelength of 1 at an excitation wavelength of 322 nm is 550 nm.Fluorescence sensing experiments were conducted on 1,and it was found that 1 has high selectivity for p-NA(p-nitroaniline).The quenching mechanism of 1 was explored,illustrating that the fluorescence quenching phenomena is mainly caused by competitive absorption.关键词
铅配位聚合物/溶剂热法/超分子结构/荧光性能/对硝基苯胺Key words
lead coordination polymer/solvothermal method/supramolecular structure/fluorescence performance/p-nitroaniline分类
化学化工引用本文复制引用
梁毅农,张恺欣,徐娅蓉,孙赞..一例铅基配位聚合物的合成、晶体结构及荧光性能研究[J].人工晶体学报,2025,54(8):1463-1469,7.基金项目
青海省自然科学基金(2020-ZJ-964Q) （2020-ZJ-964Q）
