Guest-induced emission enhancement in the permanent porous conjugated carboracycle crystal
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Updated: Jan 7, 2026

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
Published on: July 19, 2019
Kazuhiro Yuhara1, Sota Takemori1, Takumi Yanagihara1
1Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan tanaka@poly.synchem.kyoto-u.ac.jp.
Abstract:
Macrocyclization can provide space for realizing host-guest-mediated molecular sensing based on the regulation of excited-state structural change. Here, we report guest-induced luminescent changes in crystalline o-carborane-containing conjugated macrocycles, which develop an intrinsically porous crystal with 1D channels. The crystal can capture C4-length vaporous guests and subsequently exhibit guest-induced emission enhancement through the suppression of excited-state structural relaxation. Notably, the crystal showed successful reversible guest encapsulation without losing its crystalline porosity, as well as heat resistance up to 500 °C.
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