Diane Dickie - Receptor ligand design for selective recognition of f-element ions.

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      Rosario-Amorin, Daniel, Ouizem, Sabrina, Duesler, Eileen N.,   Dickie, Diane A., Hay, Benjamin P., Podair, Julien, Delmau,   Laetitia H., Paine, Robert T. SWRM-387-

      Abstract: Receptor ligand design and synthesis   activities, with a diverse range of fundamental and applied   science objectives, are underway in numerous research groups   worldwide. In our case, we have been interested in exploring   unique features revealed in the coordination chem. of f-element   cations with chelating, multidentate receptors and the impact of   donor group types and ligand architectures on the selective sepn.   of these ions from acidic aq. nuclear process solns. In   particular, we have recently focused our attention on ligand   designs based upon pyridine and pyridine N-oxide platforms   decorated with phosphine oxides as illustrated by 1 and 2, and   examples of 2 have been found to provide improved sepns.   performance compared to the well studied CMPO, 3, extractants. We   have now married these extractant families to produce a new set   of hybrid CMPO/NOPO ligands. Recent progress in the design,   synthesis, lanthanide coordination chem. and solvent extn.   behavior of a select group of these ligands will be presented.   [on SciFinder(R)]

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