Synthesis, Spectroscopic, and Biological Investigations of the Ternary Metal Complexes of Schiff Bases Derived From 2-hydroxy-1-naphthaldehyde and Some Amino Acids

Abstract

In this work the ternary metal complexes of Cu(II) and UO₂(II) with some Schiff bases derived from 2-hydroxy-1-naphthaldehyde and some amino acids as a primary ligand and two different heterocyclic bases as a secondary ligand have been synthesized. FT-IR results disclosed that the Schiff bases are coordinated to the central metal ion as a bivalent tridentate ONO donor. Electronic absorption spectra showed bands that are very distinguishable to copper and UO₂(II) ternary complexes. Furthermore, the effect of these complexes on the gram-positive bacteria is more than their effect on the gram-negative bacteria.

Keywords:

• amino acids
• antimicrobial
• Schiff bases
• spectral studies
• ternary metal complexes