含联吡啶配体和对苯二甲酸的Co(Ⅱ)基金属有机骨架的合成及作为荧光探针检测Fe(Ⅲ)  

Co(Ⅱ)-based metal-organic frameworks containing bipyridyl ligands and terephthalic acid as fluorescent probes for Fe(Ⅲ)

作　　者：杨祥 张明慧 陈凯 李然 张修都 YANG Xiang;ZHANG Ming-Hui;CHEN Kai;LI Ran;ZHANG Xiu-Du(Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control,School of Environmental Science and Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Key Laboratory of Functional Molecular Solids,Ministry of Education,Anhui Laboratory of Molecule-Based Materials,Anhui Key Laboratory of Functional Molecular Solids,College of Chemistry and Materials Science,Anhui Normal University,Wuhu,Anhui 241002,China)

机构地区：[1]南京信息工程大学环境科学与工程学院,江苏省大气环境与装备技术协同创新中心,江苏省大气环境监测与污染控制高技术重点实验室,南京210044 [2]安徽师范大学化学与材料科学学院,功能分子固体教育部重点实验室,安徽分子材料重点实验室,安徽功能分子固体重点实验室,芜湖241002

出　　处：《无机化学学报》2023年第7期1244-1252,共9页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21601090);省高等学校基础科学(自然科学)研究重大项目(No.22KJA150002)资助。

摘　　要：选用2种具有较大共轭单元的配体1,4-二(2-(2-吡啶基)乙烯基)苯(2-bpeb)和1,2-二(4-吡啶基)乙烯(dpe),在溶剂热条件下与对苯二甲酸(H_(2)PTA)和Co(NO_(3))_(2)反应,制备了2种新型Co(Ⅱ)-MOFs。单晶结构显示:配合物1是由Co-2-bpeb链和Co-PTA链直接构筑成3D骨架,而配合物2则是由Co-PTA层通过dpe桥联形成3D骨架。因吡啶配体中存在较大的π共轭体系,所获得的2种配合物均具有较强的荧光性质。荧光传感实验表明,它们都可以作为荧光探针来检测Fe3+,并且具有良好的灵敏度和可回收性。The ligands 1,4-bis(2-(2-pyridyl)ethenyl)benzene(2-bpeb)and 1,2-di(pyridin-4-yl)ethene(dpe)have been employed to react with terephthalic acid(H_(2)PTA)and Co(NO_(3))_(2) under solvothermal conditions to fabricate two novel Co(Ⅱ)-MOFs(1 and 2).The structure of 1 manifests a 3D framework constituted by the Co-2-bpeb and Co-PTA chains,while complex 2 is a 3D framework constructed from the Co-PTA layers connected by the dpe ligand.Due to the existence of a largeπ-conjugated system in the pyridyl ligands and in consideration of the practical application,the fluorescence properties of 1 and 2 were investigated and the sensing experiments revealed that both of them could be used as a fluorescent sensor for detecting Fe^(3+)with good sensitivity and recyclability.

关 键 词：金属有机骨架 混合配体策略 共轭体系 荧光探针 Fe^(3+) 

分 类 号：O614.812[理学—无机化学]