Synthesis and Characterization of Mixed Ligand Copper(II) Complexes of Hippuric Acid and Nitrilotriacetic Acid

Abstract

Mixed ligand copper(II) complexes, Na₂[Cu(C₆H₅CONHCH₂COO){N(CH₂COO)₃}].4H₂O and Na₂[Cu(C₆H₅CONHCH₂COO {N(CH₂COO)₃] formed with hippuric acid and nitrilotriacetic acid have been synthesized and characterized by their elemental analysis, spectral (IR, electronic and ¹H NMR spectra) and magneto-chemical studies. Hippuric acid acts as a bidentate ligand and the coordination occurs through carboxylate oxygen and the nitrogen of the amido group. Nitrilotriacetic acid shows tetradentate behaviour by coordination through three carboxylate oxygen atoms and the nitrogen atom. The complexes have been suggested to show octahedral structures.