Bis-lactam-1,10-phenanthroline (BLPhen), a New Type of Preorganized Mixed N,O-Donor Ligand That Separates Am(III) over Eu(III) with Exceptionally High Efficiency
| Autor: | Santa Jansone-Popova, Vyacheslav S. Bryantsev, Ilja Popovs, Madeline M. Dekarske, Radu Custelcean, Bruce A. Moyer, Alexander S. Ivanov, Frederick V. Sloop |
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| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Chemistry Ligand Phenanthroline Metal ions in aqueous solution Extraction (chemistry) Inorganic chemistry Solid-state 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Polymer chemistry Lactam Physical and Theoretical Chemistry Selectivity |
| Zdroj: | Inorganic chemistry. 56(10) |
| ISSN: | 1520-510X |
| Popis: | We report a new family of preorganized bis-lactam-1,10-phenanthroline (BLPhen) complexants that possess both hard and soft donor atoms within a convergent cavity and show unprecedented extraction strength for the trivalent f-block metal ions. BLPhen ligands with saturated and unsaturated δ-lactam rings have notable differences in their affinity and selectivity for Am(III) over Eu(III), with the latter being the most selective mixed N,O-donor extractant of Am(III) reported to date. Saturated BLPhen was crystallized with five Ln(III) nitrates to form charge-neutral 1:1 complexes in the solid state. DFT calculations further elaborate on the variety of effects that dictate the performance of these preorganized compounds. |
| Databáze: | OpenAIRE |
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