Preparation and Characterization of Transition Metal Complexes of 4-Oximino-1(2',4'-dinitrophenyl)-3-Methyl-2-Pyrazolin-5-One

Abstract

Oxovanadium(IV), chromium(III), managanese(II), iron(III),
cobalt(II), nickel(II), copper(II) and zinc(II) complexes of 4-oxinino-
1-(2'.4' -dinitrophenyl)-3-methyl-2-pyrazolin-5-one have
been prepared and cbalacterized on the basis of elemental analysis.
conductivity, magnetic moment and spectral studies. All complexes
except chromium(III) and iron(III) having general composition
M(ODMPZ)₂·2H₂O while the chrotnium(III) and iron(III) complexes
are M(ODMPZ)₃ . The ligand field parameters for VO(II),
Cr(III), Ni(II) and Co(II) chelates are also calculated.