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Synthesis, Crystal Structures and Urease Inhibition of Copper(II) and Zinc(II) Complexes Derived from
Hai-Ying Chen1, Rundong Lu2, Jinkai Lei3
1. haiying_chen@wtu.edu.cn.
Acta Chimica Slovenica
|June 26, 2024
Summary
A novel copper(II) complex exhibits significant urease inhibition, while a related zinc(II) complex was also synthesized and characterized. Both complexes utilize a Schiff base ligand and feature distinct metal atom bridging and coordination geometries.
Area of Science:
- Coordination Chemistry
- Materials Science
- Biochemistry
Background:
- Schiff base ligands are versatile building blocks in coordination chemistry.
- Metal complexes are explored for various catalytic and biological applications.
- Urease enzyme activity is relevant in agricultural and medical fields.
Purpose of the Study:
- To synthesize and characterize new tetranuclear copper(II) and trinuclear zinc(II) complexes.
- To investigate the structural properties of the synthesized metal complexes.
- To evaluate the biological activity of the copper(II) complex, specifically its urease inhibition potential.
Main Methods:
- Synthesis of metal complexes using a bis-Schiff base ligand (H2L) and metal salts.
- Characterization via elemental analysis, IR, UV-Vis spectroscopy, and single-crystal X-ray diffraction.
- Biological assay to determine urease inhibition activity.
Main Results:
- Successful synthesis of tetranuclear copper(II) complex [Cu4L2(N3)2(CH3OH)2](NO3)2·4CH3OH (1) and trinuclear zinc(II) complex [Zn3L2(CH3COO)2] (2).
- X-ray crystallography confirmed the molecular structures, revealing phenolate oxygen and azide/acetate bridging in complex 1 and 2, respectively.
- The copper(II) complex demonstrated effective urease inhibition.
Conclusions:
- The synthesized Schiff base ligand forms structurally diverse multinuclear metal complexes.
- The copper(II) complex shows promising urease inhibitory activity.
- These findings contribute to the development of metal-based urease inhibitors.
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