Reaction of p-chlorobenzaldehyde derived ligand Complexes possessing an azomethine and oximino functions with Lanthanide (III) ions and its biological activity.

Abstract

AbstractThe synthesis of benzilmonoximethiocarbohydrazide-p-chlorobenzaldehyde (HBMTpCB) ligand possessing one of oxime functions that is associated to a second functions such as azomethine or thiocarbohydrazide function in the first described. This prepared ligand, which possesses an inner N2S coordination site, allows formation of neutral lanthanide (III) metal-ligand complexes under their mono deprotonated form. The ligand was characterized by elemental analysis, FT (IR),1H NMR and electronic spectra. The La (III), Nd (III), Gd (III), Tb (III) and Dy (III) complexes of the HBMTpCB were prepared and characterized by the analytical and spectroscopic methods. In addition, the magnetic susceptibility and molar conductance measurements have been made. Seven coordinated geometrical structure were proposed for La (III), Nd (III), Gd (III), Tb (III) and Dy (III) complexes. These prepared novel complexes complete our work dealing with the oxime function complexing ability towards lanthanides (III) ions.