| |  Online-Ressource |
|---|
| Verfasst von: | Greif, Gerlinde [VerfasserIn]  |
|---|
| | Sauerwein, Fynn S. [VerfasserIn] |
|---|
| | Weßling, Patrik [VerfasserIn] |
|---|
| | Duckworth, Tamara M. [VerfasserIn] |
|---|
| | Patzschke, Michael [VerfasserIn] |
|---|
| | Gericke, Robert [VerfasserIn] |
|---|
| | Sittel, Thomas [VerfasserIn] |
|---|
| | März, Juliane [VerfasserIn] |
|---|
| | Wilden, Andreas [VerfasserIn] |
|---|
| | Modolo, Giuseppe [VerfasserIn] |
|---|
| | Panak, Petra [VerfasserIn] |
|---|
| | Roesky, Peter W. [VerfasserIn] |
|---|
| Titel: | 6-(6-methyl-1,2,4,5-tetrazine-3-yl)-2,2′-bipyridine |
|---|
| Titelzusatz: | a N-donor ligand for the separation of lanthanides(III) and actinides(III) |
|---|
| Verf.angabe: | Gerlinde Greif, Fynn S. Sauerwein, Patrik Weßling, Tamara M. Duckworth, Michael Patzschke, Robert Gericke, Thomas Sittel, Juliane März, Andreas Wilden, Giuseppe Modolo, Petra J. Panak, and Peter W. Roesky |
|---|
| E-Jahr: | 2024 |
|---|
| Jahr: | August 19, 2024 |
|---|
| Umfang: | 11 S. |
|---|
| Illustrationen: | Illustrationen |
|---|
| Fussnoten: | Veröffentlicht: 5. August 2024 ; Gesehen am 12.05.2025 |
|---|
| Titel Quelle: | Enthalten in: Inorganic chemistry |
|---|
| Ort Quelle: | Washington, DC : American Chemical Society, 1962 |
|---|
| Jahr Quelle: | 2024 |
|---|
| Band/Heft Quelle: | 63(2024), 33 vom: Aug., Seite 15259-15269 |
|---|
| ISSN Quelle: | 1520-510X |
|---|
| Abstract: | Here, we report the synthesis of the 6-(6-methyl-1,2,4,5-tetrazine-3-yl)-2,2′-bipyridine (MTB) ligand that has been developed for lanthanide/actinide separation. A multimethod study of the complexation of MTB with trivalent actinide and lanthanide ions is presented. Single-crystal X-ray diffraction measurements reveal the formation of [Ce(MTB)2(NO3)3], [Pr(MTB)(NO3)3H2O], and [Ln(MTB)(NO3)3MeCN] (Ln = Nd, Sm, Eu, Gd). In addition, the complexation of Cm(III) with MTB in solution was studied by time-resolved laser fluorescence spectroscopy. The results show the formation of [Cm(MTB)1-3]3+ complexes, which occur in two different isomers. Quantum chemical calculations reveal an energy difference between these isomers of 12 kJ mol-1, clarifying the initial observations made by time-resolved laser fluorescence spectroscopy (TRLFS). Furthermore, quantum theory of atoms in molecules (QTAIM) analysis of the Cm(III) and Ln(III) complexes was performed, indicating a stronger covalent contribution in the Cm-N interaction compared to the respective Ln-N interaction. These findings align well with extraction data showing a preferred extraction of Am and Cm over lanthanides (e.g., max. SFAm/Eu = 8.3) at nitric acid concentrations <0.1 mol L-1 HNO3. |
|---|
| DOI: | doi:10.1021/acs.inorgchem.4c01793 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1021/acs.inorgchem.4c01793 |
|---|
| | DOI: https://doi.org/10.1021/acs.inorgchem.4c01793 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1925329046 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
6-(6-methyl-1,2,4,5-tetrazine-3-yl)-2,2′-bipyridine / Greif, Gerlinde [VerfasserIn]; August 19, 2024 (Online-Ressource)
