Diane Dickie - Synthesis and f-element coordination of phosphine oxide decorated polypyridine ligand.

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      Dehaudt, Jeremy, Dickie, Diane A., Hay, Benjamin P., Paine,   Robert T. INOR-324-

      Abstract: Over the past years we have designed   in our group pyridine and pyridine N-oxide ligands decorated with   phosphine oxide, amide, phosphonic acid and dithiophosphoryl   moieties. These multidentate mols. have been found to be strong   and selective chelating ligands for trivalent lanthanide and   actinide cations. We have now extended this work to the synthesis   of new phosphine oxide functionalized polynitrogen ligands   exhibiting higher denticity potential, such as bipyridine derivs.   2 and 3. We also focused our attention on more preorganized   structures such as phenanthroline 4 and acridines 5 and 6, that   can increase the affinity for target cations by lowering the   complexation energetic cost. The synthesized ligands and their   coordination chem. with lanthanide cations have been studied by X   ray crystallog. and computational mol. modeling. [on   SciFinder(R)]

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