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Synthesis and characterization of Zn(II) and the environmentally important Cd(II) and Pb(II) coordination polymers derived from terephthalic acid and bipyridyl ligands

Author(s): Maged S.Al-Fakeh, Aref A.M.Aly, Mahmoud A.Ghandour

A series of coordination polymers of the general formula [M(TPA)(BPY)].xH2O, M=Zn(II), Cd(II) and Pb(II) and x=1/2, 1 or 3. Terephthalic acid (TPA)=1,4-benzenedicarboxylic acid andBPY=2,2'-bipyridyl has been prepared and characterized. The structure of the complexes has been assigned based on elemental analysis, IR, electronic spectral studies, thermal analysis and Scanning electronmicroscope. Thermogravimetry(TG), derivative thermogravimetry (DTG) and differential thermal analysis (DTA) have been used to study the thermal decomposition of the complexes. The kinetic parameters have been calculated making use of the Coats-Redfern and Horowitz-Metzger equations. The biological screening of the compounds was tested. The bacteria and fungi strains are common contaminants of the environment inEgypt. In this article the studied strains are frequently reported from contaminated soil, water and food.

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