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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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
23 June 2010
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| In: |
European journal of inorganic chemistry
Year: 2010, Issue: 19, Pages: 3022-3028 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201000230 |
| Online Access: | 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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| Author Notes: | Sascha Trumm, Petra J. Panak, Andreas Geist, and Thomas Fanghänel |
| Summary: | 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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| Item Description: | Gesehen am 19.01.2024 Im Titel ist "III" nach Cm und Eu hochgestellt |
| Physical Description: | Online Resource |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201000230 |