Rothe, Manuel and Tress, Martin and Allacher, Carina and Nuernberger, Patrick and Kunz, Werner (2021) Ionic Liquids [M3+][A(-)](3) with Three-Valent Cations and Their Possible Use to Easily Separate Rare Earth Metals. CHEMISTRY-A EUROPEAN JOURNAL, 27 (51). pp. 13052-13058. ISSN 0947-6539, 1521-3765
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We introduce a simple way to liquify rare earth metals (REM) by incorporating the corresponding cations, in particular Eu3+, La3+, and Y3+, into polyvalent ionic liquids (ILs). In contrast to conventional methods, this is achieved not by transforming them into anionic complexes, but by keeping them as bare cations and combining them with convenient, cheap and commercially available anions (A) in the form [REM3+][A(-)](3). To do so, we follow the COncept of Melting Point Lowering due to EThoxylation (COMPLET) with alkyl polyethylene oxide carboxylates as anions. We provide basic properties, such as glass transition temperatures, viscosities, electrical conductivities, as well as water-octanol partition constants P and show that these ILs have remarkably different properties, despite the similarity of their cations. In addition, we show that the ionic liquids possess interesting luminescent properties as non-conventional fluorophores.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OLIGOETHER CARBOXYLATES; TRANSPORT-PROPERTIES; SOLVENT-EXTRACTION; LUMINESCENCE; EUROPIUM; ionic liquids; lanthanides; rare earths; surfactants |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Physical Chemistry I > Prof. Dr. Patrick Nürnberger |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2022 10:28 |
| Last Modified: | 17 Aug 2022 10:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46572 |
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