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Laventine, Dominic M.; Afsar, Ashfaq; Hudson, Michael J.; Harwood, Laurence M. (2012)
Publisher: The Japan Institute of Heterocyclic Chemistry
Languages: English
Types: Article
Subjects:
A series of bis-triazinylphenanthroline ligands (BTPhens) was synthesized by modifying the triazine substituents. It was found that varying these substituents altered the solubilities of the ligands in a number of non-polar\ud solvents. Thus C5-BTPhen showed significantly higher solubility in octanol than C1-BTPhen. The high solubility of C5-BTPhen and its complexes was exploited to facilitate the NMR titration experiments. These experiments shown that the dominant species in solution were the 1:2 complexes [Ln(III)(BTPhen)2], even at high Ln concentrations, and that the relative stability of the 2:1 to 1:1 BTPhen-Ln\ud complexes varied with different lanthanides. C5-BTPhen therefore shows considerable promise for a once-through selective actinide separation process.
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    • 5. F. W. Lewis, L. M. Harwood, M. J. Hudson, M. G. B. Drew, J. F. Desreux, G. Vidick, N. Bouslimani, G. Modolo, A. Wilden, M. Sypula, T. H. Vu, and J. P. Simonin, J. Am. Chem. Soc., 2011, 133, 13093.
    • 6. C. W. N. Cumper, R. F. A. Ginman, and A. I. Vogel, J. Chem. Soc., 1962, 1188.
    • 7. G. Donnay, J. D. H. Donnay, and M. J. C. Harding, Acta. Cryst., 1965, 19, 688.
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