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Analytical and Thermodynamic Study of Complex of Co(II) Ion with New Azo Reagent2-((3-methoxy phenyl) diazenyl)- 4,5-diphenyl imidazole (MBDPI) | ||
| Almuthanna Journal of Pure Science (MJPS) | ||
| Article 1, Volume 1, Issue 1, 2013, Pages 0-0 | ||
| Authors | ||
| Sami WheedRadhi; Zainab Jassim Khdhair | ||
| Abstract | ||
| The new azo reagent 2-((3-methoxy phenyl) diazenyl)-4,5- diphenyl imidazole was designated as (MBDPI) and its metal chelate with Co2+metal ion were prepared. The preparation of the complex have been conducted after fixing the optimum conditions such as pH and concentration. UV-Vis spectrum for reacting of metal solution and the reagent solution. For wide range of pH (5-11) and concentration which obeys Beer-Lambert Law. The (MBDPI) and its metal chelate were characterized by the analytical and spectroscopic studies of the complex solution such as elemental analysis, FTIR, molar conductivity measurements and thermodynamic study. It has been found that the azo reagent behaves as neutral bidentate (N,N΄) reagent forming chelate with 1: 2 (metal : reagent) stoichiometry. The infrared spectra of the chelating complex have been studied and compared with the free reagent spectrum. The Conductivity measurements for solutions in ethanol have shown non-ionic character for the chelate complex.Depending on these results we can conclude that the proposed geometrical structure of the chelate complex is octahedral. The synthesized compounds have been tested in vitro against a two kinds of pathogenic bacteria to assess their antibacterial properties using disk diffusion method, which is aGram negative bacteria: (pseudomonas aeruginosa) and agram positive bacteria ( Staphylococcus aureus ) The results showed that the reagent, its metal chelate with Co2+and the aqueous solution of metal ion had inhibition activity toward the first type of bacteria without the second type. | ||
| Keywords | ||
| KEYWORDS; metal complex; spectroscopic studies; thermodynamic study; disc diffusionandAntibacterial activity | ||
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