Max-Planck-Institut fur Festkorperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany.
ACS Nano. 2010 Apr 27;4(4):1813-20. doi: 10.1021/nn100303z.
The self-assembly of aromatic carboxylic acids and cesium adatoms on a Cu(100) surface at room temperature has been investigated by scanning tunneling microscopy and X-ray photoelectron spectroscopy. The highly ordered molecular nanostructures are comprised of a central ionic coupling motif between the anionic carboxylate moieties and Cs cations that generate distinctive chiral arrangements of the network structures. The primary electrostatic interaction results in highly flexible bond lengths and geometries. The adsorbate-substrate coupling is found to be important for the determination of the structures. With the use of rod-like carboxylic linker molecules, the dimension of the porous networks can be tuned through the variation of the aromatic backbone length.
室温下，通过扫描隧道显微镜和 X 射线光电子能谱研究了芳香羧酸和铯原子在 Cu(100)表面的自组装。高度有序的分子纳米结构由阴离子羧酸根和 Cs 阳离子之间的中心离子偶联基序组成，这些阳离子生成了网络结构的独特手性排列。主要的静电相互作用导致了高度灵活的键长和几何形状。吸附剂-衬底的耦合对于确定结构非常重要。使用棒状羧酸连接分子，可以通过改变芳族主链长度来调节多孔网络的尺寸。
