عنوان المقالة:تحضير و دراسة تشخيصية لبعضمعقدات العناصر الانتقاليةمع ليكاند ازو ثلاثي السن نوع (ONO) Synthesis and Characterization studies of Some New Transition Metal Complexes with Tridentate Azo Ligand Type (ONO)
Abstract
Three New chelate complexes have prepared by reacting the ligand 2-[(4-Antipyril)azo]-3,5di hydroxyl
toluene (4-AAPDHT) with the metal ions Zn(II),Cd(II) and Hg(II). The preparation has demeanor after
limitation the optimum stipulations and concentration through (UV-Vis) spectrophotometric study of these
complex solutions have been studied for an extent of pH and concentrations which conform Lambert-Beers Law.
The structures of complexes are Evidenced approbate to mole ratio method which were gained from the
spectroscopic studies of the complex solutions .The proportion of metal:ligand obtained are (1:2) for all
complexes ions. (UV-Vis) absorption spectra of ethanol solution of complexes exhibited bathochromic shift, as
compared with that of free ligand. The infrared spectra of the chelating complexes have been studied, this may
suggest that coordination between the metal ions and the prepared ligand takes place. The elemental analysis,
metal contents and the conductivity measurements of complexes it has been identified, depending on these
results, the proposed geometrical structures of the complexes of Zn(II), Cd(II) and Hg(II) ions are octahedral.
Keywords: Synthesis, characterization and Tridentate Azo Liga