Welcome to Journal of Synthetic Crystals! Today is Share:

Journal of Synthetic Crystals ›› 2025, Vol. 54 ›› Issue (11): 1967-1973.DOI: 10.16553/j.cnki.issn1000-985x.2025.0132

• Research Articles • Previous Articles     Next Articles

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

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

CLC Number: