二维Zn(Ⅱ)配位聚合物的制备及其对马兜铃酸A的荧光检测  

Synthesis of a 2D Zn(Ⅱ)coordination polymer and its fluorescence recognition of aristolochic acid A

作　　者：王凯民 杨良竹 李立凤 马钰璐 樊保敏 孙蔚青 WANG Kaimin;YANG Liangzhu;LI Lifeng;MA Yulu;FAN Baomin;SUN Weiqing(School of Chemistry&Environment,Yunnan Minzu University,Kunming 650504,China;School of Pharmaceutical Sciences/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,云南昆明650504 [2]昆明医科大学药学院/云南省天然药物药理重点实验室,云南昆明650500

出　　处：《中山大学学报（自然科学版）（中英文）》2023年第3期116-124,共9页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金(21572198);云南省科技厅基础研究项目(202001AU070111);云南省教育厅科学研究基金(2023J0595)。

摘　　要：通过两性离子有机连接子4-羧基-1-(3-羧基苄基)吡啶-1-鎓氯化物,与含N桥连配体1,2-二(吡啶-4-基)乙烯、氢氧化钠一起在溶剂热条件下与Zn^(2+)自组装,构建了一例结构新颖具有二重穿插结构的二维配位聚合物1。采用X-射线单晶衍射、粉末衍射、热重分析、固体荧光等方法对配合物1的结构进行了表征,并考察了其在荧光传感材料领域的应用潜力。实验结果表明,配合物1可荧光猝灭选择性检测马兜铃酸A,且在5.0~35.0μmol/L的低浓度范围,荧光猝灭率与马兜铃酸A浓度呈线性关系,检测限为0.022μmol/L。其在检测马兜铃酸A时,响应时间仅需60 s,且在5次循环中能够保持结构的稳定。本研究制备的配合物1具有选择性、灵敏、高效、可回收荧光检测乙醇中马兜铃酸A的性能,可作为一种荧光传感器对低浓度的马兜铃酸A实现检测。A two-dimensional coordination polymer CP 1 with a double-intercalated structure was synthesized by zwitterionic organic ligand 4-carboxy-1-(3-carboxybenzyl)pyridine-1-onium chloride,1,2-bis(pyridin-4-yl)ethene,NaOH and Zn^(2+)under solvothermal conditions.The structure of the CP 1 was characterized by the single-crystal X-ray structure,powder diffraction spectrum and thermal stability analysis.Its application potential in the field of fluorescence sensing materials was investigated by the solid fluorescence and liquid fluorescence analysis.Results show that CP 1 can identify aristolochic acid A by fluorescence quenching.In the low concentration range of 5.0~35.0μmol/L,the quenching efficiency is linearly related to the concentration of aristolochic acid A,the detection limit was 0.022μmol/L.The interaction time of CP 1 and aristolochic acid A is 60 s,and CP 1 can keep the structure stable in five cycles.The prepared CP 1 has good fluorescence properties,and has sensitive,rapid and recyclable fluorescence sensing performance for aristolochic acid A in ethanol,and it can be used as a fluorescence sensor to detect low concentration of aristolochic acid A.

关 键 词：配位聚合物 两性离子配体 马兜铃酸A 荧光传感材料 荧光检测 

分 类 号：O614.812[理学—无机化学]