The performance of organic nanostructures is closely related to the organization of the functional molecules. Frequently, molecular chirality plays a central role in the way molecules assemble at the supramolecular level. Herein we report the hierarchical self-assembly of benzo-fused tetrathia[7]helicenes on solid surfaces, from a single surface-bound molecule to well-defined microstructures, using a combination of various characterization techniques assisted by molecular modeling simulations. Similarities as well as discrepancies are revealed between homochiral and heterochiral aggregations by monitoring the hierarchical nucleation of helicenes on surfaces, where the impact of enantiopurity, concentration and adsorbate–substrate interaction on molecular organization are disclosed.

中文翻译：

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在液体/固体界面上对映体和外消旋螺旋烯的分层自组装：从2D到3D

有机纳米结构的性能与功能分子的组织紧密相关。通常，分子手性在分子在超分子水平上的组装方式中起着核心作用。本文中，我们结合各种表征技术，结合分子建模仿真，报告了从单个表面结合分子到定义明确的微结构，苯并稠合四硫杂[7]螺旋酮在固体表面上的分层自组装。通过监测表面上螺旋分子的分层成核，揭示了同手性和异手性聚集之间的相似性和差异，其中揭示了对映体纯度，浓度和吸附物-底物相互作用对分子组织的影响。