Isolated supramolecules on surfaces studied with scanning tunneling microscopy
Isolated supramolecules on surfaces studied with scanning tunneling microscopy
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DOI：
10.1016/j.cclet.2016.03.022
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发表时间：
2016-06
影响因子：
9.1
通讯作者：
Chao Xie;Qimeng Wu;Ruoning Li;Gaochen Gu;Xue Zhang;Na Li;R. Berndt;J. Kröger;Ziyong Shen;S. Hou;Yongfeng Wang
中科院分区：
文献类型：
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作者：
Chao Xie;Qimeng Wu;Ruoning Li;Gaochen Gu;Xue Zhang;Na Li;R. Berndt;J. Kröger;Ziyong Shen;S. Hou;Yongfeng Wang
超分子化学在分子催化、分子识别、医学、数据存储和处理以及人工光合装置等方面发挥着重要的作用，是近年来发展迅速的一个研究领域。利用分子自组装技术制备了不同的孤立超分子。本文主要介绍了利用扫描隧道显微镜研究贵金属表面的超分子聚集体，包括二聚体、三聚体、四聚体、五聚体、线状聚集体和Sierpienski三角形分形。自组装结构的多样性反映了分子间相互作用和分子-底物相互作用之间的微妙平衡，这种平衡在一定程度上可能受到分子、底物和分子覆盖度的控制。对不同结构的比较研究有助于确定导致结构母题的运作机制。这些机制的应用可能会导致新的组件与定制的物理化学性质。
To date, supramolecular chemistry is an ever growing research field owing to its crucial role in molecular catalysis, recognition, medicine, data storage and processing as well as artificial photosynthetic devices. Different isolated supramolecules were prepared by molecular self-assembly on surfaces. This review mainly focuses on supramolecular aggregations on noble metal surfaces studied by scanning tunneling microscopy, including dimers, trimers, tetramers, pentamers, wire-like assemblies and Sierpiński triangular fractals. The variety of self-assembled structures reflects the subtle balance between intermolecular and molecule–substrate interactions, which to some extent may be controlled by molecules, substrates and the molecular coverage. The comparative study of different architectures helps identifying the operative mechanisms that lead to the structural motifs. The application of these mechanisms may lead to novel assemblies with tailored physicochemical properties.