A novel ligand, (E)-5-((2-hydroxy-4,6-dimethylphenyl)diazenyl)-2,3-dihydrophthalazine-1,4-dione, was synthesized through the reaction of 3,5-dimethylphenol with the diazonium salt of 5-amino-2,3-dihydrophthalazine-1,4-dione. The ligand underwent characterization through the utilization of diverse spectroscopic methods, including UV-Vis, FT-IR, 13C and 1H-NMR, alongside Mass spectroscopy and microelemental analysis (Carbon, Hydrogen, Nitrogen, Oxygen). Metal chelates of transition metals were prepared and analyzed using […]