Synthesis, Spectroscopic studies and Theoretical Treatment of Zn(II),Cd(II) and Hg(II) complexes of 1,3-Bis (4,5-diphenyl imidazole azo) benzene (BABI) | ||
| Almuthanna Journal of Pure Science (MJPS) | ||
| Article 1, Volume 2, Issue 1, December 2014, Pages 0-0 | ||
| Authors | ||
| and Ameena N. Seewan; Reheem T. Mahdi; Ahmed R.Ibrahim | ||
| Abstract | ||
| A new chelate complexes of Zn(II),Cd(II) and Hg(II), have been prepared by reacting these ions with the ligand 1,3-Bis (4,5-diphenyl imidazole azo) benzene (BABI),The preparation of the complexes have been conducted after fixing the optimum conditions such as pH and concentration .UV- visible spectra of these complexes solution have been studied for a range of pH and concentration which obey Lampert-Beers Law .The structure of complexes are deduced according to mole ratio method which were obtained from the spectroscopic studies of the complexes solution .The ratios of metal: ligand obtained are (1:1) for these complexes . (UV-Vis) absorption spectra of ethanolic solution of complexes showed bathchromic shift , as compared with that of free ligand .The infrared spectra of the chelating complexes have been studied , Depending on these results the coordination between our ligand and the metal ions take place. The conductivity measurements , elemental analysis ,the percentage of metal ions was determined .Depending on these results ,we may conclude that the ligand was tetradentate . Also the proposed geometrical structure of the complexes of Zn(II),Cd(II) and Hg(II) ions are octahedral. .Semi-empirical methods (ZINDO/1, PM3 and ZINDO/S) were carried out by using hyper chem.program to evaluate heat of formation ΔH˚f, binding energy ΔEb, dipole moment, for all complexes , also the vibration frequencies, and electronic transitions was calculated for prepared ligand(BABI).. | ||
| Keywords | ||
| synthesis; spectroscopic studies; bis; and Elemental analysis; theoretical treatment | ||
|
Statistics Article View: 168 PDF Download: 38 |
||