Studies on bis-N-Phenylhydroxamic Acids as Metal-Complexing Ligands : Part II. Adipyl bis-N-Phenylhydroxamic Acid

Adipyl bis-N-phenylhydroxamic acid (RH₂ ) forms complex compounds with Cu(II), Fe(lll), Al(III), V(V), and U(VI). The reagent has a tendency of forming tetradenate chelate rings. Compounds as CuR; Fe₂Ra,2H₂O; Al₂R(RH)₂(OH)₂,4H₂O and VO(OH)R are isolated. Molecules of water in iron and aluminium compounds are lost on heating for two hours at 120° and 108° respectively. Uranyl ion under different conditions forms two different compounds-the mono- and his-compounds UO₂R,2H₂O and UO₂(RH)₂ , 5H₂O. These compounds become anhydrous by loosing water molecules at 110° and 115° respectively.