SYNTHESIS AND CHARACTERIZATION OF TWO HYDRAZONES OF ISATINE AND THEIR SOME TRANSITION METAL COMPLEXES.

A series of complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) have been synthesized with two hydrazones derived from Isatin with salicylaldehyde (HLa) and 2,4-dinitro phenyl hydrazine (Lb). The complexes have been characterized by the elemental analysis, spectral (FTIR, Mass, Electronic, 1HNMR, ESR), Thermal analysis (TGA&DTA), Magnetic moments and conductance measurements. The proposed structures of the prepared complexes were octahedral (Co(II)-HLa), tetrahedral for Ni(II), Zn(II), Cd(II)-HLa complexes and square planar for (Cu(II)-HLa, Lb Zn(II)-Lb complexes. The synthesized ligands (HLa and Lb) were tested for their antibacterial activities. Only HLa ligand displayed activity against staphylococcus aureas (g +ve)