期刊
SOFT MATTER
卷 10, 期 7, 页码 1018-1023出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sm52365a
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资金
- National Natural Science Foundation of China [91127032, 21174035, 21204054]
- Zhejiang Provincial Natural Science Foundation of China [Y4100287]
- Program for Changjiang Scholars and Innovative Research Team in Chinese University [IRT 1231]
- Excellent Young Teachers in Zhejiang Province and Hangzhou Normal University [HNUEYT 2011-01-019]
- Opening Foundation of Zhejing Provincial Top Key Discipline [20121109]
- Zhejiang Province's Xinmiao Talent Plan
Amphiphilic molecules generally tend to organize spontaneously into spherical or cylindrical micelles/vesicles in appropriate liquid media and conditions, and seldom form two dimensional (2D) planar structures with a regular shape, due to their energetically unfavorable state. Herein, the self-assembly of a new bolaamphiphile bearing a bistriazole-pyrene unit leads to the formation of mono-molecule-layer nano-ribbons. The pi-pi stacking interaction between the rigid bistriazole-pyrene units and electrostatic screening contributed by the aromatic counterion tosyl groups are responsible for the 2D alignment of the molecules in the aggregate. Partial replacement of the tosyl groups causes a reduction in the width of the nano-ribbons and the coordination of triazole with Pd2+ ions results in the collapse of the self-assembled structure. This study supplies new clues for fabricating molecular level 2D nanostructures by bottom-up supramolecular assembly.
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