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Mannich Base Derived from 1,3,4-Oxadiazole as Chelating Ligand for Some Transition Metal Complexes | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 20, Issue 3, 2009, Pages 19-29 | ||
| Author | ||
| Rehab A.M.Al-Hasani | ||
| Abstract | ||
| Anew mannich base [N(3-(5-phenyl-2-thione-1,3,4-oxadiazole) methyl)di propyle amine] (DI) was prepared from condensation of (5-phenyl-1,3,4-oxadiazole-2-thione) with formaline and dipropyl amine .The product was characterized by (FT-IR) and elemental analysis(C.H.N.S).(DI)acts as a ligand coordinating with the metal ions {Co(II),Cu(II),Pd(II),Zn(II),Cd(II),Ru(III),V(IV) and Pt(IV)}through the thio-carbonyl and the nitrogen of the amino methyl group.The stereochemistry around the metal ion has been suggested using flame atomic absorption,FT-IR and UV-Vis spectroscopy,in a ddition to magnetic susceptibility,conductivity measurements. The study of complexes formed in (ethanolic solution) , following , the mole ratio method, gave results close to those obtained from solid state studies .The stability constants of the complexes have been calculated with time and molar absorptivities have been determined . Colour of complexes in solution were stable for more than 6h .The antibacterial activity for the ligand and its metal complexes were studied against two selected microorganisms (Pseudomonase aeruginosa) and (Bacillus subtilis) with two different concentration. | ||
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