Synthesis, Self-Assembly, and Switching of One-Dimensional Nanostructures from New Crowded Aromatics
- 11 June 2003
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (27), 8264-8269
- https://doi.org/10.1021/ja034783a
Abstract
This study outlines a versatile and expeditious synthesis of the first derivatives of a new class of benzene that is substituted with both three amide and three alkyne substituents. Sparsely covered monolayer films, made through spin-casting, reveal one-dimensional nanostructures that can be visualized with atomic force microscopy. In bulk, synchrotron X-ray diffraction and polarized light microscopy show that these nanostructured columns assemble further into a two-dimensional liquid crystalline phase. The birefringence of this phase can be switched by application of an electric field. The half-time for the liquid crystalline phase to switch is very fast and proportional to the applied voltage.Keywords
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