Synthesis, Characterization and In Vitro Antibacterial Activity of Coordination Polymers Based on Bis Bidentate Ligand

Abstract

A novel bis (bidentate) ligand, namely 5, 5′- (2, 2′- (phenyl azanediyl) bis (ethane-2, 1 - diyl) bis (oxy) bis (methylene) diquinolin −8 - ol) (PBEQ), was synthesized by condensation of 5 –chloromethyl −8 - hydroxyquinoline hydrochloride with N, N – Di (2 - hydroxy ethyl) aniline in the presence of a base catalyst. This ligand was characterized by IR, 1H-NMR, and elemental analysis. Coordination polymers of this bis-ligand (PBEQ) were prepared with Cu(II), Ni(II), Co(II), Mn(II), and Zn(II) metal ions. All of these coordination polymers were characterized by elemental analyses, IR spectral and diffuse reflectance spectral studies. The thermal stability was evaluated by thermogravimetric analyses. In addition, all of the coordination polymers have been characterized by their magnetic susceptibilities. The microbicidal activity of all the samples has been monitored against plant pathogens.