Synthesis And Antimicrobial Activity of Zinc(II) Complexes of Schiff Bases Derived From 2-Aminobenzoic Acid.

Research in Schiff base complexes has been among the most intriguing areas in coordination chemistry. Mononuclear zinc Schiff base complexes of the type [Zn(L1)(H2O)2] and [Zn(HL2)2] and dinuclear complexes of the type [Zn2(L1)Q(OAc)(H2O)] and [Zn2(L2)Q(OAc)(H2O)] (where H2L1= 2-2((2 hydroxybenzylidene)amino)benzoic acid, H2L2 = 2-((4-hydroxy-3 methoxybenzylidene) amino) benzoic acid and HQ= 8 hydroxyquinoline) are described. The complexes were investigated through using various spectroscopic methods including elemental analysis, mass spectra, 1H-NMR spectra, Fourier transform infrared (FT-IR) and UV−visible spectra. Using the diffusion method, the Schiff bases and Schiff base zinc complexes were screened in vitro against four bacteria (S. aureus, K. pneumonia, and Acinetobacter spp. and E. coli).