Synthesis, Structural Characterization of Transition Metal Complex of an Oxydiacetic Acid

Abstract

Compound based on the [Cu (oda)(hydet-en)] (oda=dianion of oxydiacetic acid, hydet-en=[N-(2-hydroxyethyl)-ethylenediamine]) has been synthesized and characterized by various spectroscopic methods (IR, UV-Vis, EPR) and thermal analysis (TG/DTG/DTA). Copper complex with mix ligands was determinated by single crystal Xray diffraction [oda] 2anion bridges Cu(II) ion with a bidentate coordination mode through its oxygen atoms of carboxylate groups. Single crystal X-ray data of the complex shows that the monomeric structure forms supramolecular frameworks with H-bonding. The FT-IR investigation of the complex was performed within the mid-IR region, mainly focusing on the characteristic (COO)as and (COO)s stretching vibrations of oxydiacetic acid. The powder electron paramagnetic resonance spectra of Cu(II) complex at RT was recorded. The results of EPR and UV-Vis spectra agree with the X-ray diffraction data.