Development of ion exchange chelators for actinide separations

摘要: Our group has recently developed a new family of chelating ligands that contain both phosphoryl and N-oxide donor centers. In particular, [Ph{sub 2}P(O)CH{sub 2}]{sub 2}C{sub 5}H{sub 3}NO, is ligand strongly binds trivalent actinide lanthanide ions present in acidic solutions. It been shown this neutral form. not through an ionic displacement process. Phosphonic acid derivatives ligand, on the other hand, do bind by H{sup +} coordination behavior will be discussed together with results binding phosphonic ligands.