Angewandte Chemie International Edition · 1998 · 98 citations · 0 references
Natural SciencesChemistryMaterials SciencePhysical ChemistrySupramolecular ChemistrySurface ScienceAdsorption At InterfacesChiral RecognitionChiral SeparationIntermolecular ForcesSupramolecular MaterialsSupramolecular RecognitionAdsorption Layer StructureChiral Recognition At InterfacesChiral Separation By AdsorptionChiral Supramolecular RecognitionLangmuir MonolayersMonolayer AdsorptionMonolayersSelf-assembled Monolayers
The supramolecular packing mode of physisorbed monolayers built up by chiral isophthalic acid derivatives and coadsorbed achiral solvent molecules was imaged at the liquid/graphite interface with scanning tunneling microscopy (STM). The picture on the right shows the submolecularly resolved STM image of an enantiomorphous domain composed of the R enantiomer of the isophthalic acid derivative studied and 1-heptanol molecules; the latter express the chirality of the monolayer. Upon adsorption a racemic mixture is separated into enantiomorphous domains.