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Abstract

Complexes of Vanadyl, Copper, Zinc, Cadmium, and Aureate with their double valence and Aureate with its triple valence were prepared using the azo dye (2,4,6-trihydroxy-3-((3-hydroxyphenyl) dixenyl)phenyl)ethane-1-one prepared newly from diazonium salt With 2,4,6-trihydroxyacetophenone, after isolation. The prepared materials were identified by available spectroscopic methods and diagnostic techniques for C.H.N, IR, UV-Vis, 1H&13C-NMR, Mass, thermogravimetric analysis curve, differential scanning calorimetry, and complexes, these techniques included as well as determining the metal percentage, determining the chlorine content, magnetic susceptibility, and molar conductivity. The results showed that the ligand is anionic (negative) tetradentate when coordinated with Vanadyl, Copper, Zinc, Cadmium through the phenolic oxygen atom, the carbonyl oxygen atom, and the azo nitrogen atom. It was tridentate e when it coordinated with Aureate through the phenolic oxygen atom and the azo nitrogen atom, giving the planar square shape (neutral) while the zinc and cadmium were (neutral) octahedral containing two coordinated water molecules and copper was tetrahedral shape (neutral) and Vanadyl complex give trigonal bipyramidal shape (neutral). Then the potential of these prepared compounds as antioxidants was determined by inhibiting free radicals using DPPH as a free radical and vitamin C as a reference to determine The Radical scavenging activities gave the results (Au-complex > H4L >Ascorbic acid>Zn-complex >Cu-complex >Cd-complex >V-complex).

Keywords

Azo complexes, Azo dyes, Antioxidant effectiveness, Thermo gravimetric analysis, 2, 4, 6-Trihydroxyacetophenone

Subject Area

Chemistry

First Page

86

Last Page

102

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Receive Date

2-19-2024

Revise Date

5-20-2024

Accept Date

5-22-2024

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