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- W2806394448 abstract "Au20 (PP3 )4 Cl4 (PP3 =tris(2-(diphenylphosphino)ethyl) phosphine), abbreviated as Au20 , is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au-thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au20 is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α-cyclodextrin (α-CD) to afford enantiopure Au20 in bulk, and an enantiomer excess (ee) value of as-separated Au20 of 97 %. As a result of its high purity, the distinctive optical activity of Au20 , which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self-assembly of α-CD with organic ligands on the surface of right-handed Au20 ." @default.
- W2806394448 created "2018-06-13" @default.
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- W2806394448 date "2018-06-19" @default.
- W2806394448 modified "2023-10-18" @default.
- W2806394448 title "Enantioseparation of Au<sub>20</sub> (PP<sub>3</sub> )<sub>4</sub> Cl<sub>4</sub> Clusters with Intrinsically Chiral Cores" @default.
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- W2806394448 doi "https://doi.org/10.1002/anie.201805695" @default.
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