Title of article :
Vibrational characterization and prooxidant activity of newly synthesized dysprosium(III) complex
Author/Authors :
Kostova, Irena Department of Chemistry - Faculty of Pharmacy - Medical University, Sofia, Bulgaria , Valcheva-Traykova, Maria Department of Medical Physics and Biophysics - Medical Faculty - Medical University of Sofia, Sofia, Bulgaria , Balkansky, Stefan Department of Chemistry - Faculty of Pharmacy - Medical University, Sofia, Bulgaria
Abstract :
The dysprosium(III) complex of 5-aminoorotic acid (HAOA) was synthesized by reaction of the respective inorganic salt in amounts equal to ligand, molar ratio of 1:3. The structure of the complex was determined by means of elemental analysis, FTIR and FT-Raman spectroscopies. Significant differences in the IR and Raman spectra of the complex were observed as compared to the spectra of the free ligand. Detailed vibrational analysis of HAOA and Dy(III)-AOA systems revealed that the binding mode in the complex was bidentate through the carboxylic oxygen atoms. Dy(III) complex of 5-aminoorotic acid (DyAOA) exhibited prooxidant properties in the presence of the model system X/XO. In the DyAOA complex, the ion diminished the antioxidant properties of the AOA ligands.
Keywords :
Dy(III) complex , 5-Aminoorotic acid , FT-Raman , FT-IR , UV , Prooxidant activity
Journal title :
Astroparticle Physics
