Strong Aggregation and Directional Assembly of Aromatic Oligoamide Macrocycles

Aromatic oligoamide macrocycles exhibit strong preference for highly directional association. Aggregation happens in both nonpolar and polar solvents but is weakened as solvent polarity increases. The strong, directional assembly is rationalized by the cooperative action of dipole–dipole and π–π sta...

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Published inJournal of the American Chemical Society Vol. 133; no. 46; pp. 18590 - 18593
Main Authors Yang, Yongan, Feng, Wen, Hu, Jinchuan, Zou, Shuliang, Gao, Rongzhao, Yamato, Kazuhiro, Kline, Mark, Cai, Zhonghou, Gao, Yi, Wang, Yibing, Li, Yibao, Yang, Yanlian, Yuan, Lihua, Zeng, Xiao Cheng, Gong, Bing
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 23.11.2011
Subjects
AROMATICS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
SOLVENTS
TRANSPORT
X-RAY DIFFRACTION
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Summary:Aromatic oligoamide macrocycles exhibit strong preference for highly directional association. Aggregation happens in both nonpolar and polar solvents but is weakened as solvent polarity increases. The strong, directional assembly is rationalized by the cooperative action of dipole–dipole and π–π stacking interactions, leading to long nanotubular assemblies that are confirmed by SEM, TEM, AFM, and XRD. The persistent nanotubular assemblies contain non-collapsible hydrophilic internal pores that mediate highly efficient ion transport observed with these macrocycles and serve as cylindrical sites for accommodating guests such as metal ions.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ANL/XSD/JA-72088
National Science Foundation (NSF)
DE-AC02-06CH11357
National Natural Science Foundation of China (NNSFC)
ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/ja208548b