期刊
HETEROCYCLES
卷 86, 期 2, 页码 1419-1429出版社
Japan Inst Heterocyclic Chemistry
DOI: 10.3987/COM-12-S(N)102
关键词
BTPhen; Bis-Triazine; Phenanthroline; Solubility; Complexation
资金
- EPSRC
- M-Base
- Acinet-I3
- Engineering and Physical Sciences Research Council [1091989, EP/I002952/1] Funding Source: researchfish
- EPSRC [EP/I002952/1] Funding Source: UKRI
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.
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