铀酰配合物高效识别水溶液中Fe^(3+)的性质研究  

Studies on the Uranyl Complex and Highly Selective Detection of Fe^(3+) in Aqueous Media

作　　者：梁玲玲 范涛[1] 刘春叶[1] 成昭[1] Liang Lingling;Fan Tao;Liu Chunye;Cheng Zhao(Department of Pharmacy,Xi'an Medical University,Xi'an,Shaanxi 710021,China)

机构地区：[1]西安医学院药学院,陕西西安710021

出　　处：《化学世界》2022年第1期12-16,共5页Chemical World

基　　金：陕西省科技厅自然科学(Nos.2020JM-614,2019JQ-887);陕西省教育厅自然科学基金(No.20JK0902);西安医学院人才振兴(No.2018XNRC03)资助项目。

摘　　要：基于含氮的柔性三羧酸配体异氰脲酸三(2-羧乙基)酯(H_(3)tci),合成了一个具有二维空间结构的铀酰配合物(UO_(2)(tci)·2H_(2)O),通过X射线单晶衍射的方法测定了其晶体结构。在水溶液中,研究了该铀酰配合物对过渡金属离子的荧光作用,结果显示,该配合物对Fe^(3+)有较好的敏感性。进一步的探索实验表明,该配合物可以高选择性地识别Fe^(3+),通过计算得到检测下限为2.15 mg/L,其敏感性优于其它铁离子探测材料,为铀酰配合物作为铁离子探针提供实验依据。Based on the flexible tricarboxylate ligand, tris(2-carboxyethyl) isocyanurate(H_(3)tci), a uranyl complex of UO_(2)(tci)·2 H_(2)O with two-dimensional framework, was synthesized, and the crystal structure was established by X-ray single crystal diffraction. The fluorescence properties of the complex with various transition metal ions were explored, which showed the highly sensitivity to iron ions. Further detection experiments demonstrated that the uranyl complex owns high selectivity for the recognition of Fe^(3+)with a detection limit of 2.15 mg/L. The sensitivity of the uranyl complex is better than other iron ion detection materials. The uranyl complex can be used as a promising functional luminescence sensor for Fe^(3+)in aqueous solution, which provides experimental basis for uranyl complexes as Fe;probes.

关 键 词：铀酰配合物 柔性羧酸配体 铁离子探针 

分 类 号：O614[理学—无机化学]