Synthesis and Characterization of Co(II) Complexes with Some New Quinazolone Oximes

Abstract

A series of complexes having the formula Co(HL)₂,  Co(HL)₂X₂ and
Co(HL)₂Y₂, where HL = 3-phenyl-quinazolone-4(3H) one-2-carboxaldehydoxime,
X = CI^-, Br^-, r^-, NO₃^- and CIO₄^- and Y = NH₃ or pyridine
have been synthesized by allowing ethanolic solutions of cobalt(II)
salts to react with solution of the ligand in tetrahydrofuran in the molar
ratio 1 : 2 and characterised by elemental analysis, molar conductivity,
infrared spectra, electronic spectra and magnetic moment data. On the basis
of experimental data the complexes of the type [Co(HL)₂] are found to be
square planar whereas complexes of the type [Co(HL)₂X₂] and
[Co(HL)₂Y₂] are found to be octahedral. The complexes are found to be
non-electrolytic in nature on the basis of low value of molar conductivities ..