Synthesis and Self‐Assembly of Cyclic 2,7‐Anthrylene Ethynylene 1,3‐Phenylene Ethynylene Trimer with a Planar Conformation |
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| Authors: | Yuta Takaki Ryota Ozawa Dr Takashi Kajitani Prof Takanori Fukushima Prof Masaaki Mitsui Prof Kenji Kobayashi |
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| Institution: | 1. Department of Chemistry, Faculty of Science, Shizuoka University, Shizuoka, Japan;2. Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan;3. RIKEN SPring-8 Center, Hyogo, Japan;4. Department of Chemistry, Graduate School of Science, Rikkyo University, Tokyo, Japan |
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| Abstract: | Cyclic arylene ethynylene hexamer 1 , composed of alternating 2,7‐anthrylene ethynylene units and meta‐phenylene ethynylene units, was synthesized. It shows C3 symmetry and possesses a flat and rigid conformation with a large equilateral triangle‐like cavity. Macrocycle 1 self‐associates through π–π stacking interactions between the anthracene‐containing macrocyclic aromatic cores with indefinite‐association constant KE=6980 m ?1 in CDCl3 at 303 K. Macrocycle 1 also self‐assembles into π‐stacked nanofibers in the drop‐cast film. |
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| Keywords: | anthracene arenes macrocycles self-assembly supramolecular chemistry |
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