0 suitable metal linlth it1 absolutc. EtOH or H, O. Her\-vw~ r, of the wwti Iiydrox? urea% studied, otil>-txo, HI'(If) arid EHU (lg) appeared to form complexes with Fe (111) arid Cu (11) ions. Only the C'u (II)-HC com-plex waq isolated in crystalline form. The Fr (II1)-HU md Fe (II1)-EHU complexe.: were riot stable eriougli to be imlated. Therefore, thrir formation was de- tected by spectrophotometric method%. Iri thebe complexes, the metal to ligand ratio was ...