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Tuning the solubilities of bis-triazinylphenanthroline ligands (BTPhens) and their complexes


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Laventine, D. M., Afsar, A., Hudson, M. J. and Harwood, L. M. (2012) Tuning the solubilities of bis-triazinylphenanthroline ligands (BTPhens) and their complexes. Heterocycles. ISSN 1881-0942

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To link to this article DOI: 10.3987/COM-12-S(N)102


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 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 complexes varied with different lanthanides. C5-BTPhen therefore shows considerable promise for a once-through selective actinide separation process.

Item Type:Article
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF)
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:29466
Publisher:The Japan Institute of Heterocyclic Chemistry

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