基于对苯二乙酸配位聚合物材料对抗生素感应的研究  

Study on the Antibiotic Sensitivity of Coordination Polymer Based on p-Phenylenediacetic Acid

作　　者：葛庆 张军 廖俊 张钢强 张美丽[2] GE Qing;ZHANG Jun;LIAO Jun;ZHANG Gangqiang;ZHANG Meili(Xinjiang Shinning Environmental Protection Energy Co.,Ltd.,Hami 963000,China;College of Chemistry and Chemical Engineering,Yan'an University 716000,China)

机构地区：[1]新疆宣力环保能源股份有限公司,新疆哈密963000 [2]延安大学化学与化工学院,陕西延安716000

出　　处：《化学与粘合》2023年第5期409-413,共5页Chemistry and Adhesion

基　　金：新疆建设兵团重大科技专项(编号:2022AA005);陕西省科技厅项目(编号:2022JM-095);榆林市科技局项目(编号:CXY-2021-126)。

摘　　要：以金属离子Zn(II)为金属源,对苯二乙酸(ppda)和均苯三咪唑(t ib)作为有机配体,通过水热法合成了配位聚合物[Zn_(3)(Cl)_(4)(ppda)(tib)_(2)]·H_(2)O。在配位聚合物晶体结构中,Zn1和Zn_(2)离子的配位数都是4,Zn_(3)离子的配位数是5,分别形成变形四面体和六面体。每个均苯三咪唑配体连接3个Zn(II)离子形成一维无限带状链,同时对苯二乙酸反式桥链将一维带状链支撑形成一维孔洞结构,电负性较大的卤素氯离子与苯环氢、结晶水分子氢容易形成氢键,使得一维孔洞互相穿插,构成复杂的三维超分子结构。该配位聚合物在水中稳定性良好,有良好的荧光传感性能,可作为荧光传感器高效灵敏地检测水体系中的四环素(TEC),检出限为0.45μmol,荧光猝灭率为72.89%。荧光猝灭机理为光诱导电子转移和内滤效应协同作用。The coordination polymer[Zn_(3)(Cl)_(4)(ppda)(tib)_(2)]·H_(2)O is synthesized by hydrothermal method using metal ion Zn(II)as metal source and phenylenediacetic acid(ppda)and homo-phenyl tri-imidazole(tib)as organic ligands.In the crystal structure of coordination polymer,the coordination number of Zn1 and Zn_(2)ion is 4,and the coordination number of Zn_(3)ion is 5,forming deformed tetrahedron and hexahedron respectively.Each tib ligand connects three zinc(II)ions to form a one-dimensional infinite strip chain.At the same time,the trans-bridge chain of ppda supports the one-dimensional strip chain to form a one-dimensional hole structure.The highly electronegative halogen chloride ions easily form hydrogen bonds with benzene ring hydrogen and water molecular hydrogen,which makes the one-dimensional holes interpenetrate with each other to form a three-dimensional supramolecular structure.This coordination polymer has good stability in water,and has good fluorescence sensing properties.For example,it can be used as a fluorescence sensor to detect tetracycline(TEC)in water with a detection limit of 0.45μmol and a fluorescence quenching rate of 72.89%.The fluorescence quenching mechanism is the synergistic effect of photoinduced electron transfer and internal filtration effect.

关 键 词：对苯二乙酸 配位聚合物 抗生素检测 荧光传感 

分 类 号：O641.4[理学—物理化学]