通过扫描隧道显微镜观察到的手性单层中由非手性共吸附分子表现出的手性
Expression of Chirality by Achiral Coadsorbed Molecules in Chiral Monolayers Observed by STM.
作者信息
De Feyter Steven, Grim Petrus C M, Rücker Markus, Vanoppen Peter, Meiners Christian, Sieffert Michel, Valiyaveettil Suresh, Müllen Klaus, De Schryver Frans C
机构信息
Department of Chemistry, Laboratory of Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Celestijnenlaan 200-F, BE-3001 Heverlee (Belgium), Fax: (+32) 16-327 989.
Max-Planck-Institut für Polymerforschung, Mainz (Germany).
出版信息
Angew Chem Int Ed Engl. 1998 May 18;37(9):1223-1226. doi: 10.1002/(SICI)1521-3773(19980518)37:9<1223::AID-ANIE1223>3.0.CO;2-Z.
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.
通过扫描隧道显微镜（STM）在液/石墨界面成像了由手性间苯二甲酸衍生物和共吸附的非手性溶剂分子构建的物理吸附单层的超分子堆积模式。右图展示了由所研究的间苯二甲酸衍生物的R对映体和1-庚醇分子组成的对映异构域的亚分子分辨STM图像；后者表现出单层的手性。吸附时，外消旋混合物被分离成不同的对映异构域。
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