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  • Title: Enantioselective extraction mediated by a chiral cavitand-salen covalently assembled on a porous silicon surface.
    Author: D'Urso A, Tudisco C, Ballistreri FP, Condorelli GG, Randazzo R, Tomaselli GA, Toscano RM, Trusso Sfrazzetto G, Pappalardo A.
    Journal: Chem Commun (Camb); 2014 May 21; 50(39):4993-6. PubMed ID: 24504122.
    Abstract:
    A chiral organic-inorganic hybrid material, based on a porous silicon surface functionalized with a chiral cavitand, was designed and synthesized. The affinity of this device in water toward a bromine-marked alkyl-ammonium salt has been evaluated using XPS detection. UV and CD measurements highlight the enantioselective extraction from a racemic mixture in water of the S-enantiomer of the selected guest (ee ≥ 80%).
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