Abstract
New polymeric ligand (resin) was prepared by the condensation of thiosemicarbazides with formaldehyde in the presence of acidic medium. Thisemicarbazide-formaldehyde polymer-metal complexes were prepared with Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) in 1 :2 metal: ligand molar ratio. The polymeric ligand and its polymer-metal complexes were characterized by elemental analysis, thermogravimetric analysis ITGA), FTIR, C-13 NMR and H-1 NMR. The geometry of central metal ions was conformed by electronic (UV-vis) and EPR spectra. The antibacterial activities of all the synthesized polymers were investigated against Bacillus subtilis and Staphylococcus aureus (Gram-positive) and Escherichia coli and Salmonella typhi (Gram-negative). These compounds showed excellent activities against these bacteria using the shaking flask method. Copyright (c) 2008 John Wiley & Sons, Ltd.