Synthesis and Characterization of Trioxime Complexes for Platinum and Palladium Metals

Abstract

A novel trioxime (LH₁) ligand bearing hydrazone side group and its complexes for platinum (II) and palladium (II) which have not been described in the literature Previously were synthesized. The trioxime ligand of bearing hydrazone group was synthesized by condensation of anti-glyoximehydrazine (GH₂) with Diacetylemonoxime . Ligand forms mononuclear complexes [Pd(LH₁)CH₃COO]CH₃COO and [M(LH₁)Cl]Cl with a metal:ligand ratio of (1:1) with  M= Pt^(II), Pd^(II). The Complexes type of [Pd(LH₁)CH₃COO]CH₃COO and [M(LH₁)Cl]Cl are proposed to be a four-coordination. The ligand is coordinated through nitrogen atoms of oxime groups (C=N-OH) and imine group (C=N), acetate and chloride ion molecules are also coordinated to the metal ion to form complexes with square planer structure. Structural assignments are supported  by a combination of           H¹-NMR ,  C¹³-NMR ,FT-IR , U.V-visible, elemental analyses (CHN).

Keywords: Trioxime, Hydrazone, Metal complex.