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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (11): 1967-1973.DOI: 10.16553/j.cnki.issn1000-985x.2025.0132

• 研究论文 • 上一篇    下一篇

嘧啶甲酰胺配体构筑的Anderson型多酸基金属-有机配合物的合成、结构及电化学传感性能研究

成爽(), 马佳, 孙畅(), 李晓慧()   

  1. 渤海大学化学学院,锦州 121013
  • 收稿日期:2025-06-19 出版日期:2025-11-20 发布日期:2025-12-11
  • 通信作者: 孙 畅,博士,讲师。E-mail:15754330995@163.com; 李晓慧,博士,副教授。E-mail:lixh198@126.com
  • 作者简介:成爽(2003—),女,辽宁省人。E-mail:2022944270@qq.com
  • 基金资助:
    国家自然科学基金青年科学基金(22201021);国家自然科学基金青年科学基金(22301019);辽宁省大学生创新创业训练计划(S202410167001)

Synthesis, Structure, and Electrochemical Sensing Performances of an Anderson-Type Polyoxometalate-Based Metal-Organic Complex Constructed with Pyrimidine Formamide Ligand

CHENG Shuang(), MA Jia, SUN Chang(), LI Xiaohui()   

  1. College of Chemistry,Bohai University,Jinzhou 121013,China
  • Received:2025-06-19 Online:2025-11-20 Published:2025-12-11

摘要: 本文以NN'-双(4-嘧啶甲酰胺基)-1,4-丁烷(L)作为有机配体,利用水热合成法使其与Anderson型多酸[TeMo6O246-和Zn(NO32进行自组装,合成了一例新的多酸基金属-有机配合物[Zn3(L)(TeMo6O24)(H2O)10]·8H2O(1)。通过单晶X射线衍射、粉末X射线衍射、红外光谱、电化学分析技术对该化合物进行了结构和性能测试。结果表明,在该化合物中,Zn(II)原子呈现六配位模式,并通过L配体连接构成一维链,相邻的一维链又通过[TeMo6O246-相连构成二维层状结构。该化合物对Cr(Ⅵ)和Fe(Ⅲ)具有高灵敏度和选择性的电催化传感性能,检测限分别可以达到0.26和1.02 μmol/L。

关键词: 多酸基金属-有机配合物; 嘧啶甲酰胺配体; 水热合成; 电化学检测Cr(Ⅵ)和Fe(Ⅲ); 电化学传感性能

Abstract: NN'-bis(4-pyrimidinecarboxamido)-1,4-butane (L) was employed as an organic ligand to assemble with [TeMo6O246- and Zn(NO32. And a new Anderson-type polyoxometalate-based metal-organic complex, [Zn3(L)(TeMo6O24)(H2O)10]·8H2O (1), was synthesized via hydrothermal synthesis method. The structure and properties of the compound were characterized by single-crystal X-ray diffraction, powder X-ray diffraction, infrared spectroscopy, and electrochemical analysis techniques. The results show that the Zn(II) atoms within the compound were six-coordinate, which bridged the L ligands to form 1D chains. Adjacent 1D chains were further interconnected via the [TeMo6O246- anions, resulting in the formation of a 2D layered structure. This compound demonstrates excellent sensitivity and selectivity in the electrocatalytic sensing of Cr(Ⅵ) and Fe(Ⅲ), with detection limits of 0.26 and 1.02 μmol/L, respectively.

Key words: polyoxometalate-based metal-organic complex; pyrimidine formamide ligand; hydrothermal synthesis; electrochemical detection of Cr(Ⅵ) and Fe(Ⅲ); electrochemical sensing performance

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