Synthesis of two different Hydroxamic Acids and their Complexation with Cu (II) and Fe (III) Ions

Abstract

Oxalohydroxamic and Benzohydroxamic acids were prepared, from oxalic and benzoic acids by the action of their corresponding methyl esters on free hydroxylamine. The synthesized acids were used as chelating agents towards two different metal ions Fe(III) and Cu(II). The free ligands were characterized by their melting points, molecular weight, the results were found to be in agreement with their theoretical values. The free ligands and complexes of Fe(III),Cu(II), were studied spectroscopically, using IR techniques. The result obtained showed that most characteristic bands associated with hydroxamic acid functional group that is due to O – H , C = O , N - O and C - N .