Environment-sensitive fluorescence of COT-fused perylene bisimide based on symmetry-breaking charge separation

DOI 機関リポジトリ (HANDLE) HANDLE PDF Web Site ほか1件をすべて表示 一部だけ表示 参考文献50件 オープンアクセス

書誌事項

公開日
2023-11
資源種別
journal article
権利情報
  • This is an accepted manuscript of this article, which has been published in final form at https://doi.org/10.1007/s43630-023-00468-4
  • The full-text file will be made open to the public on 01 September 2024 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
  • This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
DOI
  • 10.1007/s43630-023-00468-4
公開者
Springer Nature

この論文をさがす

説明

Flexible and aromatic photofunctional system (FLAP) is composed of flapping rigid aromatic wings fused with a flexible 8π ring at the center such as cyclooctatetraene (COT). A series of FLAP have been actively studied for the interesting dynamic behaviors. Here, we synthesized a new flapping molecule bearing naphtho-perylenebisimide wings (NPBI-FLAP), in which two perylene units are arranged side by side. As a reference compound, we also prepared COT-fused NPBI (NPBI-COT) that contains only single perylene unit. In both compounds, inherent strong fluorescence of the NPBI moiety is almost quenched and the FL lifetime becomes much shortened in highly polar solvents (acetone and DMF). Through the analyses of environment-sensitive fluorescence, electrochemical reduction/oxidation, and femtosecond transient absorption, the fluorescence quenching behavior was attributed to rapid symmetry-breaking charge separation (SB-CS) for NPBI-FLAP and to intramolecular charge transfer (ICT) for NPBI-COT. Most of the excited species of these compounds decay with the bent geometry, which is in contrast with the excited-state planarization behavior of a previously reported COT-fused peryleneimides with the double-headed arrangement of the perylene moieties. These results indicate that changing the fusion manners between COT and other 𝝅 skeletons offers new functional molecules with distinct dynamics.

収録刊行物

参考文献 (50)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ