This work involves preparation of new metal complexes via reaction of two anthraquinone ligands with Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) metal ions . The ligands are prepared by treatment of 1- and 2-anthraquinone with acetic anhydride.       The complexes are characterized by different physicochemical methods; microelemental analysis, molar conductivity, FT-IR, UV-Vis spectra and magnetic measurements. The discussion of the outcome data of the prepared complexes indicates that all complexes are octahedral.       The biological activity properties of the ligands and most of their complexes are studied using gram-positive and gram-negative bacteria, which indicate that only two of the complexes show biological activity.

Hydrazone complexes of Co(II), Ni(II), Cu(II) and Zn(II) with acetone acetylhydrazone(AAH) ligand derived from the condensation of acetone and acetylhydrazine, containing N and O donor sites have been synthesized. The complexes are characterized by different physicochemical methods, elemental analysis, molar conductivity, IR, UV-Vis spectra and also magnetic measurements. The discussion of the out come data of the prepared complexes indicate that AAH behave as a neutral bidentate ligand. The electronic spectra as well as their magnetic moments suggest octahedral geometry for the bis-and tris-complexes, [M(AAH) 2 Cl 2 ], [M(AAH) 3 ](NO 3) 2 [M= Co(II), Ni(II), Cu(II), Zn(II)] and the mixed ligand complex [Ni(AAH) (Py) 2 Cl 2 ] and tetrahedral geometry for the mono complexes [M(AAH)Cl 2 ][M= Co(II), Cu(II), Zn(II)] and the other prepared mixed ligand complexes [Co(AAH)(Py) 2 ]Cl 2 and [Cu(AAH)(Py)Cl]Cl. The antimicrobial properties of the ligand and most of its complexes were studied using Gram-positive and Gram-negative bacteria. The metal complexes were found to have a moderate activity and Zn(II) complexes were the most active.

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complexes of the type [M(L 1 )Cl 2 ] and [M(L 2 )Cl 2 ] (M=Mn(II),