Abstract
Diazotization reaction between 1-(2,4,6-Trihydroxy-phenyl)-ethanone and diazonium salts was carried out resulting in ligand 4-(3-Acetyl-2,4,6-trihydroxy-phenylazo)-N-(5-methyl-isoxazol-3-yl)-benzenesulfonamide, this in turn reacted with the next metal ions (V4+ , Cr3+ , Mn2+ and Cu2+) forming stable complexes with unique geometries such as (Octahedral for both Cr3+ , Mn2+ and Cu2+ ,squar pyramidal for V4+). The creation of such complexes was detected by employing spectroscopic means involving ultraviolet-visible which proved the obtained geometries, fourier transfer proved the formation of azo group and and the coordination with metal ion through it. Pyrolysis (TGA & DSC) studies proved the coordination of water residues with metal ions inside the coordination sphere as well as chlorine atoms. Moreover, element micro-analysis and AAS that gave corresponding outcome with theoretically counting outcome. (1H &13C-NMR) and magnetic quantifications can also indicate the formation of ligand-H3L and occurrence of coordination. The thermodynamic constants (∆H, ∆S and ∆G) were calculated. The DPPH radical scavenging method will be used to assess the antioxidant activities of the compounds the compounds showed antioxidant abilities to scavenge free radical.
Keywords
Antioxidant, Azo dye, Mass spectroscopy, 1-(2, 4, 6-Trihydroxy-phenyl)-ethanone, Thermal analysis
Article Type
Article
How to Cite this Article
Abdullah, Amnah Mahdi and Al-Hamdani, Abbas Ali Salih
(2024)
"Synthesis, Characterization , Thermal Studies and Antioxidant Activities of Transition Metal Complexes with Azo Dye ligand,"
Baghdad Science Journal: Vol. 21:
Iss.
5, Article 12.
DOI: https://doi.org/10.21123/bsj.2023.8365
