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Tannin obtained from Eucalyptus plant, condensed with formaldehyde and then 8-hydroxy quinoline. The so called obtained polymer designated as TFQ was used for metal chelate formation. Thus Transition metal chelates of TFQ with Zn+2, Co+2, Cu+2, Ni+2 and Mn+2 metal ions were prepared. The ligand TFQ and its all five metal chelates were characterized by nitrogen content, IR, UV-Visible spectral studies, magnetic moments and thermogravimetry. The antimicrobial activity of all the samples has also been monitored against common microbes.

Synthesis, characterization and chelating properties of tannin-8-hydroxy quinoline - formaldehyde polymer