ABSTRACT:
Research Article
SSynthesis, spectral, magnetic and thermal studies of the complexes of CoII and NiII with some bidentate and
tridentate hydrazone ligands
Chetan K. Modi1, Ashwin S. Patel2 and Bharat T. Thaker3*
1Department of Chemistry, Sardar Patel University,
Vallabh Vidyanagar 388 120,
2Department of Chemistry, Navyug Science College, Rander Road,
Surat 395 009,
3Department of Chemistry, Veer Narmad South Gujarat University,
Surat 395 007, India.
The reaction of Co(NO3)2.6H2O and Ni(NO3)2.6H2O with hydrazones derived from 1-phenyl-3-methyl-4-acyl-5-pyrazolone (where acyl = acetyl, propionyl, butyryl and benzoyl) with 2-picolinic acid hydrazide have been studied and characterized on the basis of elemental analysis, magnetic moments, molar conductivity measurements, IR and electronic spectral studies and thermogravimetric analysis. Various ligand field parameters have been calculated. Electronic spectral data and the magnetic moment values suggest an octahedral structure for all cobalt(II) and nickel(II) complexes.
