Synthesis, Characterization, and Catalytic Applications of Schiff-Base Metal Complexes

Abstract

The ligand named 1-(3-chlorophenyl)-N-(pyridine-2-yl)methanimine Schiff base was obtained with the method of mixing 2-amino pyridine with 3-chloro benzaldehyde in methanol as an initial material. Transition metals, like Cu(II), were added to the prepared ligand as a dopant. The molecular structure was characterized by elemental analysis, electronic methods (UV-Visible), Vibrational methods (FT-IR), and 1H NMR spectroscopy. The catalytic activities of the complex were studied using Claisen–Schmidt condensation for the synthesis of chalcone derivatives employed using three different catalysts by an ultrasonication method. The results reveal that the Cu(II) complex showed remarkable catalytic activity and good yield compared to the other catalysts.

Keywords

• catalysis
• condensation
• Schiff-base complexes
• transition metals