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Issue 11, 2012
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Self-assembly of cationic pyrenenanotubes

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The controlled preparation of organic nanotubesviaself-assembly of polycyclic aromatics is a contemporary challenge for supramolecular science. Here, we show that the self-assembly of pyrene-containing cationic amphiphiles, 3-(4-(pyren-6-yl)phenoxy)propan-1-ammonium salts (PyPA-Cl, PyPA-Br, and PyPA-SO44), can form high aspect ratio nanotubes with a uniform diameter distribution. We have also demonstrated that the counter anions also play an important role in the self-assembling results. The self-assembly of pyrene-containing cationic amphiphilic molecules with monovalent anions (Cl and Br) forms exclusively uniform nanotubes; whereas the self-assembly of amphiphiles with bivalent counter anions (SO42) forms exclusively high aspect ratio nanoribbons. Furthermore, we have found that the diameter of the PyPA-Brnanotubes is larger than that of the PyPA-Clnanotubes. The research results reported herein represent an important step towards the preparation of functional nanostructures with controlled 1D architectures.

Graphical abstract: Self-assembly of cationic pyrene nanotubes

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Publication details

The article was received on 18 Nov 2011, accepted on 04 Jan 2012 and first published on 31 Jan 2012

Article type: Paper
DOI: 10.1039/C2JM15997J
J. Mater. Chem., 2012,22, 4927-4931

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    Self-assembly of cationic pyrene nanotubes

    Y. Chen, B. Zhu, Y. Han and Z. Bo, J. Mater. Chem., 2012, 22, 4927
    DOI: 10.1039/C2JM15997J

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