基于两性离子配体构筑的Eu(Ⅲ)配位聚合物的晶体结构和对呋喃西林的检测  

Crystal Structure of Eu(Ⅲ) Coordination Polymer Based on Zwitterionic Ligand and Detection of Furacilin

作　　者：王凯民 李立凤 石明凤 叶艳青 王玉娜 郭津榕 唐怀军 马钰璐 WANG Kai‑Min;LI Li‑Feng;SHI Ming‑Feng;YE Yan‑Qing;WANG Yu‑Na;GUO Jin‑Rong;TANG Huai‑Jun;MA Yu‑Lu(School of Chemistry&Environment,Yunnan Minzu University,Kunming 650504,China;School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products,Kunming Medical University,Kunming 650500,China)

机构地区：[1]云南民族大学化学与环境学院,昆明650504 [2]昆明医科大学药学院暨云南省天然药物药理重点实验室,昆明650500

出　　处：《无机化学学报》2022年第9期1843-1852,共10页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21762049);云南省科技厅基础研究基金(No.202001AU070111);云南省科技厅昆明医科大学应用基础研究联合专项(No.202101AY070001-070);云南省教育厅科学研究基金(No.2020J0140);昆明市科技局基金(No.2020-1-H-035)资助。

摘　　要：合成了一个新的铕(Ⅲ)配合聚合物{[Eu(L)_(2)(H_(2)O)_(4)]Cl_(3)·2H_(2)O}_(n)(1)(L=1,1’-(2,3,5,6-四甲基-1,4-亚苯基)双(亚甲基)双(吡啶-1-鎓-4-羧酸盐))。配位聚合物分子结构经X射线单晶衍射分析确认。对配合物1进行了X射线粉末衍射、红外光谱、热重法和固体荧光光谱表征。固体荧光测试显示配合物1具有非常明显的稀土铕离子特征发光,表明配体能够高效地敏化稀土离子发光。此外,这种水稳定的1被用作化学传感器来检测各种常见的抗生素,发现它对水相中的呋喃西林分子表现出高选择性、高灵敏度和可循环的检测能力。A novel coordination polymer,{[Eu(L)_(2)(H_(2) O)_(4)]Cl_(3)·2 H_(2) O}_(n)(1)(L=1,1’-((2,3,5,6-tetramethyl^(-1),4-phenylene)bis(methylene))bis(pyridin-1-ium-4-carboxylate)),was synthesized under hydrothermal conditions by a zwitterionic organic ligand and characterized by single crystal X-ray diffraction.Powder X-ray diffraction,IR,thermogravimetry,and luninescence properties of 1 were also determined.The solid-state luminescence properties of 1 were investigated,realizing the zwitterionic ligand is an excellent antenna chromophore for sensitizing Eu^(3+) ions.In addition,this water-stable 1 was utilized as a chemosensor to detect various common antibiotics to find that this one can exhibit high selectivity,sensitivity,and recyclability in the detection of furacilin molecules in aqueous phases.CCDC:2150460.

关 键 词：铕(Ⅲ)配合物 配位聚合物 两性离子配体 荧光识别 呋喃西林 

分 类 号：O614.338[理学—无机化学]