Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 63, Issue 7, Pages 1273-1281Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958971003728296
Keywords
Barbituric acid; Polymer metal complexes; Thermogravimetric analysis
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Funding
- Third World Academy of Sciences Italy [00-047 RG/CHE/AS]
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A new polymeric ligand was synthesized by the reaction of bisphenol-A and formaldehyde in the basic medium, followed by condensation polymerization with barbituric acid in the acidic medium. Polymer metal complexes were prepared by reaction of this resin with Mn(II), Co(II), Ni(II), Cu(II), and Zn(II). The polymeric resin and its metal polychelates were characterized by elemental analysis, FT-IR, (13)C-NMR, and (1)H-NMR spectra. The geometry of the polymer metal complexes was evaluated by electronic spectra (UV-Vis) and magnetic moment measurement. Thermal stabilities show an increased thermal stability of the metal polychelates compared to the ligand. The antibacterial activities of all the synthesized polymers were investigated against Bacillus subtilis, Staphylococcus aureus, and Escherichia coli, showing good antibacterial activities against these bacteria. Cu(II) polychelate showed highest biocidal activity.
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