Synergistic lanthanide extraction triggered by self-assembly of heterodinuclear Zn(II)/Ln(III) Schiff base/carboxylic acid complexes
| Autor: | Thomas Doert, Felix Hennersdorf, Karsten Gloe, Norman Kelly |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Lanthanide
chemistry.chemical_classification Schiff base ligands Schiff base Synergistic lanthanide extraction General Chemical Engineering Carboxylic acid Extraction (chemistry) Supramolecular chemistry 02 engineering and technology General Chemistry 010403 inorganic & nuclear chemistry 01 natural sciences supramolecular chemistry 0104 chemical sciences chemistry.chemical_compound 020401 chemical engineering chemistry x-ray crystal structures Polymer chemistry Chelation Self-assembly 0204 chemical engineering self-assembly of heterodinuclear Zn(II)/Ln(III) complexes Diimine |
| Zdroj: | Solvent Extraction and Ion Exchange 39(2021)5-6, 545-572 |
| DOI: | 10.6084/m9.figshare.13720790 |
| Popis: | The studies reported here focus on the extraction of La(III), Eu(III), and Yb(III) by chelating hexadentate 3-alkoxy-2-hydroxyphenyl substituted diimine ligands using the extraction system Ln(NO3)3–Zn(NO3)2–NaNO3–buffer–H2O/diimine-n-caprylic acid–CHCl3. Significant synergistic enhancement has been observed for the Ln(III) extraction from nitrate media in the presence of Zn(II) and n-caprylic acid. These effects can be interpreted by self-assembly of heterodinuclear Zn(II)/Ln(III) complexes with both deprotonated extractants in the organic phase taking into account solution and solid-state structural studies. The structures identified and the extraction behavior as well as the different factors influencing the process will be discussed in detail. The goals of these experiments are to find preferred structure-extractability relationships for the synergistic systems investigated. |
| Databáze: | OpenAIRE |
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