Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany.
Beilstein J Org Chem. 2014 Nov 27;10:2783-8. doi: 10.3762/bjoc.10.295. eCollection 2014.
Self-assembled monolayers of a molecular spoked wheel (a shape-persistent macrocycle with an intraannular spoke/hub system) and its synthetic precursor are investigated by scanning tunneling microscopy (STM) at the liquid/solid interface of 1-octanoic acid and highly oriented pyrolytic graphite. The submolecularly resolved STM images reveal that the molecules indeed behave as more or less rigid objects of certain sizes and shapes - depending on their chemical structures. In addition, the images provide insight into the multilayer growth of the molecular spoked wheels (MSWs), where the first adlayer acts as a template for the commensurate adsorption of molecules in the second layer.
通过扫描隧道显微镜（STM）在 1-辛酸和高取向热解石墨的固/液界面上研究了分子辐轮（具有内环辐条/轮毂系统的形状稳定大环）及其合成前体的自组装单层。亚分子分辨的 STM 图像表明，这些分子确实表现为具有一定大小和形状的或多或少刚性物体 - 这取决于它们的化学结构。此外，这些图像还深入了解了分子辐轮（MSWs）的多层生长，其中第一层作为第二层分子共形吸附的模板。
