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Abstract:
The adsorption of achiral meso-tartaric acid on the copper(1 1 0) surface leads to 2D enantiomorphous structures, observable as mirror domains in low-energy electron diffraction (LEED). The reason for this 2D-enantiomorphism is explained by adsorption-induced chirality in the molecular frame combined with a lateral separation of the resulting two enantiomers on the surface. Co-adsorption of small amounts of (S,S)- or (R,R)-tartaric acid, however, suppresses the formation of one enantiomorphous domain and drives the entire monolayer into homochirality.
