ArticleJournal of the American Chemical Society2024
Tetradentate Ligand's Chameleon-Like Behavior Offers Recognition of Specific Lanthanides.
Article in Journal of the American Chemical Society, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Palladium-catalyzed benzocyclization reactions of quinoline-2-carboxamides via sequential C-H/N-H functionalization.Beilstein journal of organic chemistry · 2026Article
- Tuning Lanthanide Binding with Phenanthroline-Based Diamides via Electron-Donating and Electron-Withdrawing Groups.The journal of physical chemistry. A · 2025Article
- Macrocyclic Chelators for Aqueous Lanthanide Separations via Precipitation: Toward Sustainable Recycling of Rare-Earths from NdFeB Magnets.Journal of the American Chemical Society · 2025Article
- Computation-Aided Development of Next-Generation Extractants for Trivalent Actinide and Lanthanide Separation.JACS Au · 2024Article
- Intramolecular C-H arylation of pyridine derivatives with a palladium catalyst for the synthesis of multiply fused heteroaromatic compounds.Beilstein journal of organic chemistry · 2024Article
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Authors and funding
11 authors.
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Abstract
The surging demand for high-purity individual lanthanides necessitates the development of novel and exceptionally selective separation strategies. At the heart of these separation systems is an organic compound that, based on its structural features, selectively recognizes the lighter or heavier lanthanides in the trivalent lanthanide (Ln) series. This work emphasizes the significant implications resulting from modifying the donor group configuration within an N,O-based tetradentate ligand and the changes in the solvation environment of Ln ions in the process of separating Lns, with the unique ability to achieve peak selectivity in the light, medium, and heavy Ln regions. The structural rigidity of the bis-lactam-1,10-phenanthroline ligand enforces size-based selectivity, displaying an exceptional affinity for Lns having larger ionic radii such as La. Modifying the ligand by eliminating one preorganization element (phenanthroline → bipyridine) results in the fast formation of complexes with light Lns, but, in the span of hours, the peak selectivity shifts toward middle Ln (Sm), resulting in time-resolved separation. As expected, at low nitric acid concentrations, the neutral tetradentate ligand complexes with Ln
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