Synthesis and characterization of new tridentate iminooxime ligands and their Co(III) complexes

Abstract

In this study, ( hydroxyimino)(2-phenyl(1,2,3,4-tetrahydroquinazolin-2-yl)) methane (H2L1) and ( hydroxyimino)(2-(2-thienyl)(1,2,3,4-tetrahydroquinazolin-2-yl)) methane (H2L2) were synthesized by the condensation of 2-( hydroxyimino)-1-phenylethan-1-one ( INAP) and 2-( hydroxyimino)-1-(2-thienyl) ethan-1- one (INAT) with 2- aminobenzylamine (2-ABA). Complexes of these ligands with Co3+ were prepared with a metal: ligand ratio of 1:2. The ligands and their complexes were elucidated on the basis of elemental analyses, AAS, FT-IR, H-1- and C-13-NMR spectra, mass spectra, magnetic susceptibility measurements, and molar conductivity.