Synthesis, spectral and thermal characterization, biological activity of a new amino acide ester containing substituted salicylaldimine Schiff base ligand and its Ru(II)bipyridyl complex

Abstract

The new salicylaldimine, as O,N-bidentate ligand (HL), containing amino acide ester and its Ru(II) complex [Ru(bpy)2(HL)]Cl2 have been prepared. Synthesized compounds have been structurally characterized by IR, 1H NMR, LC-MS, fluorescence spectroscopy, elemental and thermal (TGA-DSC) analyses. The metal to the ligand ratio of the Ru(II) complex was found to be 1:1. Antifungal activities of the ligand and complex have been investigated. The Ru(II) complex have strong antifungal activity than the ligand against Aspergillus niger.