Catalysts (Jan 2022)

Synthesis, Crystal Structure, and Electrochemical Properties of an Isopolyoxovanadate Compound Modified Transition-Metal Complex Based on [V<sub>4</sub>O<sub>12</sub>]<sup>4−</sup>

  • Yongxiu Wang,
  • Bingjie Zhang,
  • Huili Guo,
  • Yanhua Fan,
  • Haiyan Li,
  • Jingyu Pang,
  • Dongbin Dang,
  • Yan Bai

DOI
https://doi.org/10.3390/catal12020108
Journal volume & issue
Vol. 12, no. 2
p. 108

Abstract

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A new isopolyoxovanadate compound [Zn(phen)3]2·(V4O12)·phen·20H2O (phen = 1,10-phenathroline) (1) has been synthesized in aqueous solution and characterized using IR and UV/Vis spectroscopy, elemental analysis, thermal gravimetric analysis, powder, single-crystal X-ray diffractions, and field emission scanning electron microscopy. The molecular structure of 1 exists as two kinds of [V4O12]4− polyoxoanions: distorted chair-like and coplanar conformations, two independent [Zn(phen)3]2+ units and free phen. In the solid state, compound 1 forms a stable three-dimensional supramolecular structure through electrostatic interactions, π–π stacking interactions and multiform hydrogen bonds. The electrocatalytic activity and determination of DA of compound 1 have been studied by cyclic voltammetry and differential pulse voltammetry, respectively.

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