A pair of diastereomeric salen cavitands andtheir uranyl complexes combine a chiral (R,R) salen bridge andan inherent chiral tris-bridged quinoxaline cup within the samemolecule. Whereas the free ligands show a preference for thesame enantiomer of an α-amino acid pair, the correspondingUO2 complexes display opposite enantiodiscrimination andexceptionally high enantioselectivities (KD/KL = 26.4)
Pair of Diastereomeric Uranyl Salen Cavitands Displaying Opposite Enantiodiscrimination of α‑Amino Acid Ammonium Salts
PAPPALARDO, ANDREA;AMATO, Maria Emanuela;BALLISTRERI, Francesco Paolo;TOMASELLI, Gaetano;TOSCANO, Rosa Maria;TRUSSO SFRAZZETTO, GIUSEPPE
2012-01-01
Abstract
A pair of diastereomeric salen cavitands andtheir uranyl complexes combine a chiral (R,R) salen bridge andan inherent chiral tris-bridged quinoxaline cup within the samemolecule. Whereas the free ligands show a preference for thesame enantiomer of an α-amino acid pair, the correspondingUO2 complexes display opposite enantiodiscrimination andexceptionally high enantioselectivities (KD/KL = 26.4)File in questo prodotto:
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