Synthesis, crystal structure, and electrocatalytic behavior of a zinc(II) complex derived from a heterocyclic acylpyrazolone

Abstract

An acylpyrazolone complex, [Zn(PMαFP)₂(CH₃OH)₂] (HPMαFP = 1-phenyl-3-methyl-4-(α-furoyl)-5-pyrazolone), was synthesized. The complex was characterized by single-crystal X-ray diffraction, IR, UV, fluorescence spectra, DTA-TG, and cyclic voltammetry (CV). The structure is orthorhombic, group pbca with cell parameters: a = 15.015(3) Å, b = 9.844(2) Å, c = 20.663(4) Å, Z = 4, S = 1.025, R ₁ = 0.0353 and wR ₂ = 0.0924. The complex shows a slightly distorted octahedral structure, Zn²⁺ is located at an inversion center from four oxygens, two of ligands in the equatorial plane, two methanols axial. The complex has a two-dimensional supramolecular structure connected by O–HN bonding interactions. In the CV, one oxidation peak of adenine with E _p = 1.018 V in pH = 7.0 shows that the [Zn(PMαFP)₂(CH₃OH)₂]/glassy carbon modified electrode has a catalytic effect on adenine.

Keywords:

• Acylpyrazolone complex
• Crystal structure
• Spectrum characterization
• Electrochemical catalytic
• Adenine

Acknowledgments

This work was supported by grants from the Nature Science Foundation of Heilongjiang Province, People’s Republic of China (No. B201004).