From BTBPs to BTPhens: the effect of ligand pre-organization on the extraction properties of quadridentate bis-triazine ligands
Lewis, F. W., Harwood, L. M., Hudson, M. J., Drew, M. G. B., Wilden, A., Sypula, M., Modolo, G., Vu, T.-H., Simonin, J.-P., Vidick, G., Bouslimani, N. and Desreux, J. F. (2012) From BTBPs to BTPhens: the effect of ligand pre-organization on the extraction properties of quadridentate bis-triazine ligands. Procedia Chemistry, 7. pp. 231-238. ISSN 1876-6196
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To link to this item DOI: 10.1016/j.proche.2012.10.038
The synthesis, lanthanide complexation and solvent extraction of An(III) and Ln(III) radiotracers from nitric acid solutions by a pre-organized, phenanthroline-derived bis-triazine ligand CyMe4-BTPhen are described. It was found that the ligand separated Am(III) and Cm(III) from the lanthanides with remarkably high efficiency, high selectivity, and faster extraction kinetics compared to its 2,2’-bipyridine counterpart CyMe4-BTBP. The origins of the ligands extraction properties were established by a combination of solvent extraction experiments, X-ray crystallography, kinetics and surface tension measurements and lanthanide NMR spectroscopy.