Synthesis and Study of Thermal Behaviour of Cu²⁺ and Fe²⁺ complexes derived from N-N¹-diphenylhydroxylamineethylacetate

Abstract

The Schiff base ligand N-N¹-diphenylhydroxylamineethylacetate (DHA) prepared by the reaction of 2-phenylglycinemethylesterhydrochloride and salicyaldehyde was used to precipitate the transition metal complexes of Cu²⁺ and Fe²⁺. These procedures were achieved using the microwave assisted technique regulated at 100^oC for 30 min. Characterization of the ligand and complexes was carried out on the basis of physical properties, FTIR, XRD, UV-vis, spectroscopy. Unit cell dimensions which were obtained from the XRD crystallography analysis agreed with the establishment of orthorhombic crystal structure. The spectroscopic studies showed bands assignable to the azomethine nitrogen coordinated to the metal ion. The thermal decomposition of the complexes indicates the loss of lattice water and decomposition of the ligands as key to the interpretation of successive weight loss.