基于镉(Ⅱ)配位聚合物对呋喃妥因的荧光传感性能  

A fluorescence sensor based on Cd(Ⅱ)coordination polymer for recognition of nitrofurantoin

作　　者：王凯民 赵雄 白旭玲 董艳秋 樊瑞峰 于红梅 唐怀军 马钰璐 WANG Kai-Min;ZHAO Xiong;BAI Xu-Ling;DONG Yan-Qiu;FAN Rui-Feng;YU Hong-Mei;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天然药物药理重点实验室,昆明650500

出　　处：《无机化学学报》2023年第8期1587-1596,共10页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21762049);云南省教育厅科学研究基金(No.2023J0595);云南省天然药物药理重点实验室开放基金(No.YKLPNP-G2307);昆明医科大学人才引进科研专项项目(No.J13395009);云南省科技厅昆明医科大学应用基础研究联合专项项目(No.202101AY070001-070)资助。

摘　　要：采用溶剂热法成功合成了1个新的二维配位聚合物(CP)[Cd_(2)(L)(dbpy)_(2)(HCOO)(H_(2)O)]·3H_(2)O (1),其中H3L=5-((4-羧基苄基)氨基)间苯二甲酸,dbpy=5,5′-二甲基-2,2′-联吡啶。CP1经单晶X射线衍射、粉末X射线衍射、元素分析、红外光谱、热重和固体荧光光谱表征。CP1的结构可简化为点符号为(63)的3连接二维hcb层。更重要的是,CP1可以通过荧光猝灭效应选择性和灵敏地识别水相中的抗生素呋喃妥因,并且具有较低检测限(LOD=0.19μmol·L^(-1))。此外,初步探索发现荧光猝灭机制可能是由荧光共振能量转移引起。A new 2D coordination polymer(CP)[Cd_(2)(L)(dbpy)_(2)(HCOO)(H_(2)O)]·3H_(2)O(1),where H_(3)L=5-((4-carboxy-benzyl)amino)isophthalic acid and dbpy=5,5′-dimethyl-2,2′-bipyridine,was successfully synthesized by solvother-mal method.The structure of CP 1 was characterized by single-crystal X-ray diffraction,powder X-ray diffraction,elemental analysis,IR,thermogravimetric analysis,and solid fluorescence spectroscopy.The structure of CP 1 can be simplified into a 3-connected 2D hcb layer with the point symbol of(63).More importantly,CP 1 could selective-ly and sensitively recognize antibiotic nitrofurantoin in an aqueous medium by fluorescence quenching effect and had a low detection limit(LOD=0.19μmol·L^(-1)).In addition,the fluorescence quenching mechanism may be caused by the fluorescence resonance energy transfer.CCDC:2241100.

关 键 词：镉(Ⅱ) 配位聚合物 荧光传感器 呋喃妥因 抗生素残留 

分 类 号：O614.242[理学—无机化学]