ABSTRACT
The metal complexes with Schiff base derived from the condensation of 3-acetyl coumarin, (0.1mol) with salicyloylhydrazide / 2-hydroxynaphthaldehyde in alcohol resulted as Schiff base, (14E)-N’-(2-hydroxybenzylidine)-2-oxo-2H-chromene-3- carbohydrazide(HL1) and (14E)-N’-(2-hydroxynaphthalen-3-yl)methylene)-2-oxo-2Hchromene- 3carbohydrazide (HL2). The Schiff base has been shown to coordinate through ring C=N and OH group. These complexes were characterized by elemental analyses, conductance measurements, magnetic susceptibility measurements, IR, 1H NMR, X-ray diffraction and electronic spectral studies. On the basis of these studies octahedral geometry was assigned for Mn (II), Co (II), Ni (II), Cu (II), Zn (II), Cd (II) and Hg(II) complexes. These complexes have been screened in vitro for their possible antimicrobial activity.