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Abstract :

This study reports the preparation and spectroscopic evaluation of a series of transition metal complexes of Co(II), Ni(II), and Cu(II) with schiff base ligand 1-ethyl, 1, 2, 3, 5, tetrahydroimidazo (2, 1-b) quinazolin 5-one semicarbazone (ETQS). The ligand and its Co(II), Ni(II) and Cu(II) complexes were formulated by elemental analysis, molar mass, infrared spectra, electronic spectra, molar conductivity and magnetic susceptibility measurements. In the light of above studies it is proposed that the compound ETQS behaves a bidentate ligand and coordination takes place through azomethine nitrogen and carbonyl oxygen of semicarbazone moiety. The remaining positions of metal Ions are satisfied by negative ions such as Cl- , Br, l- and NO3- . The complexes were proposed octahedral geometry. All the synthesized ligand and complexes have been screened for antimicrobial activity.