Unraveling Inter‐ and Intrachain Electronics in Polythiophene Assemblies Mediated by Coordination Nanospaces |
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| Authors: | Michael W A MacLean Takashi Kitao Dr Takeo Suga Prof?Dr Motohiro Mizuno Prof?Dr Shu Seki Dr Takashi Uemura Prof Susumu Kitagawa |
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| Institution: | 1. Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, K7L 3N6 (Canada);2. Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan);3. Department of Applied Chemistry, Waseda University, 3‐4‐1 Ohkubo, Shinjuku, Tokyo 169‐8555 (Japan);4. Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920‐1192 (Japan);5. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan);6. CREST Japan Science and Technology Agency (JST), 4‐1‐8 Honcho, Kawaguchi, Saitama 332‐0012 (Japan);7. Institute for Integrated Cell‐Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501 (Japan) |
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| Abstract: | Strong interchain interactions render unsubstituted polythiophene un‐fusible, non‐melting, and insoluble. Therefore, control of the packing structure, which has a profound effect on the optical and electronic properties of the polymer, has never been achieved. Unsubstituted polythiophene was prepared in the one‐dimensional channels of La(1,3,5‐benzenetrisbenzoate)]n, where polymer chains form unprecedented assembly structures mediated by the host framework. It is noteworthy that the emission and carrier transport properties were drastically changed by varying the number of chains within a particular assembly. The response of the composite to additional guests is also examined as a method to use the composites as low‐concentration sensors. Our findings show that the encapsulation of polymer chains in host materials is a facile method for understanding the intrinsic properties of conjugated polymers, along with controlling and enhancing their functions. |
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| Keywords: | conjugated polymers host– guest systems metal– organic frameworks microporous materials polymerization |
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