Origin of chiral discrimination by a two-dimensionally chiral self-assembled monolayer : A quantum chemical study
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Structural and energetic investigations based on semiempirical PM5 and ab initio HF and MP2 calculations suggested that the self-assembled monolayer of an atropisomeric compound, (R)- or (S)-1,1′-binaphthalene-2,2′-dithiol (BNSH), on a gold (111) surface selectively adsorbs one enantiomer of phenylalanine (Phe), resulting in chiral discrimination, through hydrophobic, cation(–NH3+)-π and NH(Phe)-π(BNSH) interactions in a nanometer-sized screw-hole-like pocket composed of three BNSH molecules in the monolayer.
- Elsevier B.V.の論文
- 2006-12-11
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