Evolution of multilevel order in supramolecular assemblies

被引：39

作者：

Vonau, F

Suhr, D

Aubel, D

Bouteiller, L

Reiter, G

Simon, L

机构：

[1] CNRS, UMR 7014, Lab Phys & Spect Elect, F-68093 Mulhouse, France

[2] Univ Paris 06, UMR 7610, Lab Chim Polymeres, F-75252 Paris 05, France

[3] CNRS, Inst Chim Surfaces & Interfaces, F-68057 Mulhouse, France

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.94.066103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The process of self-assembly at multiple length scales of bis-urea substituted toluene on a Au(111) surface was studied by low temperature scanning tunneling microscopy. Pattern formation is controlled by specific hydrogen bonds between these molecules but also by significantly weaker lateral coupling between the resulting supramolecular polymers and a quasiepitaxial interlocking with the substrate. The ordered assemblies exhibit a tunnel transparency. Our experiments indicate the necessity of multiple interactions of different strengths for obtaining ordered structures with hierarchical levels of organization.

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页数：4

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