Amplification of Chirality at Solid Surfaces |
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Authors: | Karl-Heinz Ernst |
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Institution: | 1.Molecular Surface Science,Empa—Swiss Materials Testing and Research Laboratories,Dübendorf,Switzerland |
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Abstract: | Symmetry-breaking phenomena in two-dimensional crystallization at surfaces are reviewed and the potential impact to chiral
amplification in three-dimensional systems in connection with the origin of homochirality in the biomolecular world is discussed.
Adsorption of prochiral molecules leads to two-dimensional conglomerates, i.e., on a local scale spontaneously to homochiral
crystal structures. Small enantiomeric excess or chiral impurities in this environment install homochirality on a global scale,
that is, on the entire surface. |
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