Synthesis and Characterization of Chromium(III) and Manganese(III) Complexes with a Hydrazone Derived from Pyrazolone and β-Diketone
Corresponding Author(s) : Reena Ravindran
Asian Journal of Chemistry,
Vol. 18 No. 4 (2006): Vol 18 Issue 4
Abstract
Novel complexes of chromium(III) and manganese(III) have been synthesized with a multidentate ligand 1,2-dihydro-1-phenyl-2,3-dimethyl-4-[2´,4´-pentanedione-3´- hydrazono]pyrazol-5-one. The complexes were characterized using elemental analysis, conductance measurements, magnetic susceptibility, thermal, infrared and electronic spectral studies. The ligand is neutral bidentate in all the chromium(III) complexes with the composition [CrL2X2]X where X = Cl, Br, NO3, ClO4 and is neutral tridentate in the manganese(III) complexes with compositions [MnL2]X3 where X = Cl, Br and [MnLX3] where X = NO3, ClO4. All complexes are six-coordinated with Oh symmetry.
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