Title:
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Interfacial chiral selection by bulk species
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Author:
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Dong, Hua; Ignés i Mullol, Jordi; Claret Bonet, Josep; Pérez Muñoz, Lourdes; Pinazo Gassol, Aurora; Sagués i Mestre, Francesc
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Other authors:
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Universitat de Barcelona |
Abstract:
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A chiral selection process in a self-assembled soft monolayer of an achiral amphiphile as a consequence of its interaction with chiral species dissolved in the aqueous subphase, is reported. The extent of the chiral selection is statistically measured in terms of the enantiomorphic excess of self-assembled submillimeter domains endowed with well-defined orientational chirality that is unambiguously resolved using optical microscopy. Our results show that the emergence of chirality is mediated by electrostatic interactions and significantly enhanced by hydrophobic effects. This chiral chemical effect can be suppressed and even reversed by opposing a macroscopic physical influence, such as vortical stirring. This result gives evidence for the crucial role of hydrodynamic effects in supramolecular aggregation. |
Subject(s):
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-Quiralitat -Química de superfícies -Aminoàcids -Chirality -Surface chemistry -Amino acids |
Rights:
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(c) Wiley-VCH, 2014
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Document type:
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Article Article - Accepted version |
Published by:
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Wiley-VCH
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