A complexation study of 2,6-bis(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)pyridine using single-crystal X-ray diffraction and TRLFS
To develop a selective ligand for the separation of lanthanides(III) and actinides(III) the coordination chemistry of the chelating N-donor ligand 2,6-bis(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)pyridine (BTTP) was investigated. The two isostructural lanthanide compounds [Ln(BTTP)3(OTf)3] (Ln = Eu (1), Sm...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 13, 2015
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| In: |
Inorganic chemistry
Year: 2015, Jahrgang: 54, Heft: 15, Pages: 7301-7308 |
| ISSN: | 1520-510X |
| DOI: | 10.1021/acs.inorgchem.5b00803 |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.inorgchem.5b00803 Verlag, lizenzpflichtig, Volltext: https://pubs.acs.org/doi/10.1021/acs.inorgchem.5b00803 
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| Verfasserangaben: | Claude Kiefer, Anna. T. Wagner, Björn B. Beele, Andreas Geist, Petra J. Panak, and Peter W. Roesky |
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| 245 | 1 | 2 | |a A complexation study of 2,6-bis(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)pyridine using single-crystal X-ray diffraction and TRLFS |c Claude Kiefer, Anna. T. Wagner, Björn B. Beele, Andreas Geist, Petra J. Panak, and Peter W. Roesky |
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| 520 | |a To develop a selective ligand for the separation of lanthanides(III) and actinides(III) the coordination chemistry of the chelating N-donor ligand 2,6-bis(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)pyridine (BTTP) was investigated. The two isostructural lanthanide compounds [Ln(BTTP)3(OTf)3] (Ln = Eu (1), Sm (2); OTf = trifluoromethanesulfonate) were synthesized and fully characterized. The solid-state structures of both compounds were established by single-crystal X-ray diffraction. The complexation of Cm(III) and Eu(III) with BTTP in acetonitrile was studied using time-resolved laser fluorescence spectroscopy. With increasing BTTP concentration Cm(III) 1:2 and 1:3 complexes and Eu(III) 1:1 and 1:3 complexes are identified. The conditional stability constants of the 1:3 complex species with BTTP are log β3 = 14.0 for Cm(III) and log β3 = 10.3 for Eu(III). Both M(III) 1:3 complexes are prone to decomplexation with increasing acidity. | ||
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