Expression of Chirality by Achiral Coadsorbed Molecules in Chiral Monolayers Observed by STM
Autor: | M. Sieffert, P. Vanoppen, Steven De Feyter, Frans C. De Schryver, Suresh Valiyaveettil, P. C. M. Grim, C. Meiners, Markus Rücker, Klaus Müllen |
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Rok vydání: | 1998 |
Předmět: | |
Zdroj: | Angewandte Chemie International Edition. 37:1223-1226 |
ISSN: | 1521-3773 1433-7851 |
Popis: | 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. |
Databáze: | OpenAIRE |
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