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Abstract
Seven high spin octahedral chelates of the Schiff bases of 4-acetyl-3-methyl-1-(3′-chlorophenyl) -2-pyrazolin-5-one with o-toludine, m-toluidine, p-toluidine, m-chloroaniline, p-chloroaniline, ethanolamine and glycine have been prepared. The chelates contain two molecules of the Schiff base. The first five Schiff bases function as a bidentate ligand coordinating through the azomethine group and the oxygen of the enolic hydroxy group, while the rest of the positions in the coordination geometry of the metal ions are occupied by water molecules. The latter two Schiff bases function as a tridentate ligand. The octahedral structure of the chelates have been investigated by elemental analysis, diffuse reflectance and infrared spectra, molar conductance and magnetic moments.