Structure and Epitaxial Registry on Graphite of a Series of Nanoporous Self-Assembled Molecular Monolayers
Structure and Epitaxial Registry on Graphite of a Series of Nanoporous Self-Assembled Molecular Monolayers
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DOI：
10.1021/jz900146f
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发表时间：
2010-01-01
影响因子：
5.7
通讯作者：
Charra, Fabrice
中科院分区：
文献类型：
--
作者：
Arrigoni, Claire;Schull, Guillaume;Charra, Fabrice
我们用扫描隧道显微镜分析了石墨液-固界面烷基链交错稳定的一系列纳米多孔蜂窝网络结构，即夹状非共价键。观察到的变化作为外围脂肪链长度的函数表明，组装不仅受侧向分子间相互作用的指导，还受底物上的吸附位置的影响。我们推导了一个原子上准确的模型，用于我们的纳米孔模型的石墨注册。一系列系统。与定量模型完全一致，孔隙面积在整个系列中逐级变化一个数量级以上，同时保留了石墨诱导的烷基链交错的详细特征，观察到的最大孔隙对应于未覆盖衬底面积的比例高达35%。
We have analyzed by STM the detailed structures of a series of nanoporous honeycomb networks stabilized by alkyl chain interdigitation on graphite at the liquid solid interface, that is, clip-like noncovalent bonding. The variations observed as a function of the length of the peripheral aliphatic chains show that the assembly is directed not only by lateral intermolecular interactions but also by the adsorption site on the substrate, We derive an atomically accurate model for the registry with graphite of our nanoporous model. series of systems. In full agreement with the quantitative model, the pore areas vary step-by-step by more than one order of magnitude along the whole series while preserving the detailed features of the graphite-induced alkyl chain interdigitation The largest pores observed correspond to a ratio of uncovered substrate area as large as 35%.