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Issue 10, 2014
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Two-dimensional self-assembly of amphiphilic porphyrins on a dynamically shrinking droplet surface

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Abstract

Developing a new field of molecular self-assembly in the sub-micrometer regime—with precision as high as that used to make discrete nano-sized molecular architectures through molecular design—is a major challenge for supramolecular chemistry. At present, however, there is no effective strategy for controlling the assembling molecules when their quantity is greater than one thousand. Herein, we propose a potential solution by exploiting a novel supramolecular system in conjunction with dynamically shrinking oil droplets, enabling more than a thousand component molecules to organize simultaneously into the form of sub-micrometer-scale ring structures. In our developed system, amphiphilic porphyrins, having potential two-dimensional assembling ability, were compartmentalized into droplets with narrow distributions and molecular numbers. These droplets were subsequently transformed into discrete ring-like structures during the process of solvent removal from the inner organic layer, i.e., shrinking the droplets. Unique self-assembled structures, which are not accessible through conventional supramolecular strategies, can be selectively created depending on the initial stage of the droplet.

Graphical abstract: Two-dimensional self-assembly of amphiphilic porphyrins on a dynamically shrinking droplet surface

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Publication details

The article was received on 23 Aug 2013, accepted on 09 Dec 2013 and first published on 10 Dec 2013


Article type: Paper
DOI: 10.1039/C3OB41723A
Citation: Org. Biomol. Chem., 2014,12, 1627-1632
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    Two-dimensional self-assembly of amphiphilic porphyrins on a dynamically shrinking droplet surface

    M. Numata, Y. Takigami, N. Hirose and R. Sakai, Org. Biomol. Chem., 2014, 12, 1627
    DOI: 10.1039/C3OB41723A

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