A TRLFS study on the complexation of CmIII and EuIII with 2,6-Bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine in water/methanol mixture
The complexation of CmIII and EuIII with 2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine (nPr-BTP) in water/methanol solution is studied. 1:3 complexes [M(nPr-BTP)3]3+ form from the solvated metal ions upon addition of ligand. The conditional stability constants are log K = 14.4 and log K = 11.9. F...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
23 June 2010
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| In: |
European journal of inorganic chemistry
Year: 2010, Heft: 19, Pages: 3022-3028 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201000230 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/ejic.201000230 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201000230 
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| Verfasserangaben: | Sascha Trumm, Petra J. Panak, Andreas Geist, and Thomas Fanghänel |
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| 245 | 1 | 2 | |a A TRLFS study on the complexation of CmIII and EuIII with 2,6-Bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine in water/methanol mixture |c Sascha Trumm, Petra J. Panak, Andreas Geist, and Thomas Fanghänel |
| 246 | 3 | 3 | |a A TRLFS study on the complexation of Cm III and Eu III with 2,6-Bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine in water/methanol mixture |
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| 520 | |a The complexation of CmIII and EuIII with 2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine (nPr-BTP) in water/methanol solution is studied. 1:3 complexes [M(nPr-BTP)3]3+ form from the solvated metal ions upon addition of ligand. The conditional stability constants are log K = 14.4 and log K = 11.9. For both metal ions the complexation reaction is both enthalpy and entropy driven. ΔH is 10.1 kJ/mol more negative than ΔH, whereas the entropy difference is small. The difference in ΔG between the formation of the CmIII and EuIII complexes is in good agreement with nPr-BTP's selectivity in liquid-liquid extraction. | ||
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