Complexes of two series of Schiff base ligands, H2La and H2Lb derived from the reaction of 2, 6-diacetyl pyridine with semicarbazide, H2La and thiosemicarbazide, H2Lb, with the metal ions, Co (II), Ni (II), Cu (II), VO (IV) and UO2 (VI) have been prepared. The ligands are characterized by elemental analysis, IR, UV–vis and 1H NMR. The structures of the complexes are investigated with the IR, UV–vis, X-band ESR spectra, 1H NMR and ...