Abstract

This study concerned with the synthesis and characterization of some complexes of the ligand All the complexes were non-electrolytes complexes crystalline solid compounds insoluble in water , but soluble in some organic solvents the negatively charge bidentate ligand coordinated with metal ions through the oxygen atom in the hydroxyl group and the oxygen atom of the aldehyde group. The effect of these complexes on inhibiting the growth of bacteria and fungi isolated from diarrheal patients with intestinal inflammation has been shown to be highly inhibitory and has been the best inhibitory effect of the complex Zn(OC₁₀ H₆ CHO)₂ on bacteria Shigella dysentariea inhibition diameter 32 milmeter and on fungus candida glabrata in hibition diameter 27 milimeter and there were no toxic effects of these complex on the Laboratory mice are the dose of 2.5 – 15 gm / kg of body weight.