Ionic Liquid-based Schiff Base Ligand for the Synthesis of Fe(III) and Cr(III) Metal Complexes and Their Antibacterial Studies

Fe(III) and Cr(III) complexes derived from an ionic liquid-based Schiff base, 1-{2-(2-hydroxy-5-chlorobenzylamine)ethyl}-3-ethylimidazolium were characterized and established by various analytical and spectroscopic techniques such as ESI-MS, UV-Visible, FT-IR, 1H NMR, elemental analysis and magnetic susceptibility measurements. Based on these spectral data octahedral geometry was suggested for the both complexes. The Schiff base ligand and its complexes were screamed for in vitro antibacterial activities against gram positive and gram negative bacteria to assess their effects. Cr(III) complex showed higher activity than the Fe(III) complex against the tested gram positive and gram negative bacteria.