Synthesis, Characterization, Antibacterial, and Extraction Studies of Dioxouranium (Uo22+)Ofn,N-[(4,4-Biphenyl Bis(Methylidene))]Di Nicotinic Hydrazine
Keywords:
nicotinic hydrazide, liquid-liquid extraction, uranyl ions, stoichiometric, thermodynamic
Abstract
New Hydrazonic Schiff base was synthesized by reaction Nicotinic hydrazidewith Biphenyl-4 4 -Dicarbaldehydehave been characterized by elemental analyses IR massand1H-NMR spectral data Hydrazoic Schiff base have been studied by liquid-liquid extraction towards the metal ion Uo II from aqueous phase to organic phase behave as a good extractant ligand for uranyl ions Uo II from aqueous solution and the study of conditions of extraction shows that the optimum pH values for extraction was pH 5 2 so the suitable concentration of Uo II ions in aqueous solution which is giving highest distribution ratio D was 1x10-4M in addition the optimum shaking time to reach the equilibria was 60 min as well as the stoichiometric study by using three methods shows the structure of Uo II ions complex with ligand was 1 1 metal ligand in addition the study of organic solvent effect appear there is no straight line relation between the distribution ratio for extraction of Uo II ions and dielectric constant for organic solvents but this study demonstrate there is an effect for the structure of organic solvent used thermodynamic study shows the complexation reaction an endothermic The new Schiff Bases was studied for antibacterial activities against Bacillus subtilis and Staphylococcus aureus are Gram positive and Salmonella typhi and Escherichia coli are Gram negative The compound ligand was exhibited a variable activity of inhibition on the growth of the bacteria
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2014-01-15
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