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Title
Japanese: 
English:Ring shape-dependent self-sorting of pillar[n]arenes assembled on a surface 
Author
Japanese: T. Ogoshi, S. Takashima, N. Inada, H. Asakawa, T. Fukuma, 庄子 良晃, 梶谷 孝, 福島 孝典, T. Tada, T. Dotera, T. Kakut, T. Yamagishi.  
English: T. Ogoshi, S. Takashima, N. Inada, H. Asakawa, T. Fukuma, Y. Shoji, T. Kajitani, T. Fukushima, T. Tada, T. Dotera, T. Kakut, T. Yamagishi.  
Language English 
Journal/Book name
Japanese: 
English:communications chemistry 
Volume, Number, Page Vol. 1    Number 92    Page 1-7
Published date Dec. 7, 2018 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.nature.com/articles/s42004-018-0094-z
 
DOI https://doi.org/10.1038/s42004-018-0094-z
Abstract Self-sorting, in which multiple components selectively assemble themselves by recognising self from others, is an attractive approach to produce supramolecular assemblies with controlled structures. Lock-and-key type complementary physical interactions are required for self-sorting because selective affinity is necessary to distinguish self from others. Here we show self-sorting behaviour based on a principle of geometrical complementarity by shape during our investigation of assembly of pentagonal pillar[5]arenes and hexagonal pillar[6]arenes on a surface. In the homoassembly systems, anionic pillar[5]arenes and pillar[6]arenes are adsorbed onto positively charged layers of cationic pillar[5]arenes and pillar[6]arenes, respectively, through cationic-anionic electrostatic interactions. In contrast, ionic pillar[5]arenes are adsorbed onto layers constructed from oppositely charged pillar[5]arenes, but ionic pillar[6]arenes are not. Equally, for the reverse combination, ionic pillar[6]arenes are adsorbed onto layers constructed from oppositely charged pillar[6]arenes, but ionic pillar[5]arenes are not. The geometrical complementarity by shape realises effective self-sorting even in non-directional multivalent ionic interactions.

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