Synthesis And Characterization of Some Divalent Metal Complexes of Acid Hydrazine

Abstract

Ligand Base Schiff(1-(2-hydroxyphenyl) ethylidene) isonicotinohydrazide (HPENH). is used to prepare several new complexes for some transition elements, like Co (II), Ni (II), and Cu (II), and non-transition elements, like Zn (II), Cd (II), and Hg (II).was synthesis by the condensation reaction of nicotinohydrazide [M(HPENH) Cl] Cl with 1-(2-hydroxyphenyl) ethane-1one in an neutral medium led to the formation of mononuclear complexes, and the reaction of the ligand with metallic salts in a ratio of 1:1 metal: ligand led to the formation of mononuclear complexes with the formula: M = Co (II), Ni (II), Cu (II), Zn (II), Cd (II) and Hg (II). Measurements of molar conductivity, magnetic measurements, electronic spectra, infrared spectra, proton ¹H and carbon ¹³C magnetic resonance spectra, and gas-mass chromatography were used to figure out what the complexes were. These studies have shown that ligand works evenly in triple dentate to make tetrahedral-shaped complexes as likely as possible.