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タイトル: | Progressive gas adsorption squeezing through the narrow channel of a soft porous crystal of [Co₂(₄,₄′-bipyridine)₃(NO₃)₄] |
著者: | Sakamoto, Hirotoshi ![]() ![]() ![]() Otake, Ken-ichi Kitagawa, Susumu ![]() ![]() ![]() |
著者名の別形: | 坂本, 裕俊 大竹, 研一 北川, 進 |
キーワード: | Metal–organic frameworks Porous materials |
発行日: | 2-Sep-2024 |
出版者: | Springer Nature |
誌名: | Communications Materials |
巻: | 5 |
論文番号: | 171 |
抄録: | Reactions of the ternary components of Co₂⁺ ion, 4,4'-bipyridine, and NO₃⁻ give several coordination polymers, which are often obtained in mixed phases. Herein, we explore the condition for the selective formation of Co-1D chain and Co-tongue-and-groove coordination polymers and find reversible interconversion pathways between them. The crystal structures of Co-tongue-and-groove in desolvated and two different Co₂-adsorbed states show a one-dimensional corrugated channel with small windows through which Co₂ is unlikely to pass. Nevertheless, a sufficient amount of Co₂ is adsorbed at 195 K. The Co₂ molecules are accommodated in the swollen cavity, forcing their way through the seemingly impermeable window of the channel, which we have named squeezing adsorption. The local motion of the ligand of the window frame plays an essential role in the guest permeation, which proves that the tongue-and-groove coordination polymers are essentially locally flexible porous frameworks. |
記述: | PCPは、はじめから「ソフト」だった! 分子が自身より小さな空間を通り抜ける謎を解明. 京都大学プレスリリース. 2024-09-02. |
著作権等: | © The Author(s) 2024 This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/289859 |
DOI(出版社版): | 10.1038/s43246-024-00609-x |
関連リンク: | https://www.icems.kyoto-u.ac.jp/news/9915/ |
出現コレクション: | 学術雑誌掲載論文等 |

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