Synthesis of vic-Dioxime derivatives with semicarbazone side groups and their Ni(II) complexes

Abstract

In this work, two novel vic-dioxime $(L^1H_2, L^2H_2)$ compounds bearing semicarbazone side groups and their Ni(II) complexes were synthesized. The vic-dioxime ligands of bearing semicarbazone side groups were synthesized by reacting anti-chloroglyoxime with semicarbazidehydrochloride, 4-aminoacetophenenone semicarbazone, respectively. Ligands form mononuclear complexes $[Ni(LH)_2]$ with a metal:ligand ratio of 1:2. The Ni(II) complexes are proposed to be square planar. Structural assignments are supported by a combination of $^1H-NMR$, $^{13}C-NMR$, HMQC, FT-IR, UV, elemental analyses and magnetic susceptibility