Synthesis, Characterization and Antioxidant study of some Bivalent Metal complexes by N<sub>2</sub>O<sub>2</sub> -donor crown macrocyclic ligand.

The synthesis prepared of 2,2"-[Ethane-1,2-dylbis(oxy)]dibenzaldehyde (N) is covered in the paper .The metal complexes of its were synthesized from the reaction of O-phenlyene diamine with the ligand . The N process of preparation was completed. underwent two phases in which the Na2CO3 intermediate in DMF reacted with two matching salicylic aldehydes. One 1,2-dibromoethane equivalent was then added. And then the ligand N was introduced, dissolved. Five novel compounds were prepared in DMF using a molar ratio of (0.5M:N:O - phenylene diamine). Physicochemical techniques (FTIR, electron spectroscopy, mass and 1HNMR. 13C-NMR susceptibility, and molar conductivity) were used to confirm the isolated compositional entity of the produced compounds. Based on characterization data, octahedral compounds exhibiting the chemical formula [MLC12] . Where ( M = Co(ll), Ni(ll), Cu(ll), Zn (ll)and Cd(ll)) the antimicrobial activity of the title compounds (ligand and complexes) was tested as an antioxidant. The data obtained revealed that the mineral complexes became less active than Ligand.