ダウンロード数: 30
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
D3SC04564A.pdf | 1.02 MB | Adobe PDF | 見る/開く |
タイトル: | Enhanced solid-state phosphorescence of organoplatinum π-systems by ion-pairing assembly |
著者: | Haketa, Yohei Komatsu, Kaifu Sei, Hiroi Imoba, Hiroki Ota, Wataru Sato, Tohru Murakami, Yu Tanaka, Hiroki Yasuda, Nobuhiro Tohnai, Norimitsu Maeda, Hiromitsu |
著者名の別形: | 羽毛田, 洋平 小松, 海風 施, 宏居 妹葉, 拓紀 大田, 航 佐藤, 徹 村上, 優 田中, 宏樹 安田, 伸広 藤内, 謙光 前田, 大光 |
発行日: | 21-Jan-2024 |
出版者: | Royal Society of Chemistry (RSC) |
誌名: | Chemical Science |
巻: | 15 |
号: | 3 |
開始ページ: | 964 |
終了ページ: | 973 |
抄録: | Anion binding and ion pairing of dipyrrolyldiketone PtII complexes as anion-responsive π-electronic molecules resulted in photophysical modulations, as observed in solid-state phosphorescence properties. Modifications to arylpyridine ligands in the PtII complexes significantly impacted the assembling behaviour and photophysical properties of anion-free and anion-binding (ion-pairing) forms. The PtII complexes, in the presence of guest anions and their countercations, formed various anion-binding modes and ion-pairing assembled structures depending on constituents and forms (solutions and crystals). The PtII complexes emitted strong phosphorescence in deoxygenated solutions but showed extremely weak phosphorescence in the solid state owing to self-association. In contrast, the solid-state ion-pairing assemblies with tetraalkylammonium cations exhibited enhanced phosphorescence owing to the formation of hydrogen-bonding 1D-chain PtII complexes dispersed by stacking with aliphatic cations. Theoretical studies revealed that the enhanced phosphorescence in the solid-state ion-pairing assembly was attributed to preventing the delocalisation of the electron wavefunction over PtII complexes. |
記述: | イオンペア集合化によって固体常温りん光強度を増大 --固体の発光強度を向上させる手法として応用が期待--. 京都大学プレスリリース. 2024-01-24. |
著作権等: | © 2024 The Author(s). Published by the Royal Society of Chemistry This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. |
URI: | http://hdl.handle.net/2433/286771 |
DOI(出版社版): | 10.1039/D3SC04564A |
PubMed ID: | 38239682 |
出現コレクション: | 学術雑誌掲載論文等 |
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス