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説明:

Optical codes generated from the emission lifetimes of lanthanide complexes have received considerable attention for their potential application in multiplexed bioimaging and anti-counterfeiting. However, such tunable lifetimes are limited to short ranges (0.01−1 ms). Herein, we describe a method that extends the emission lifetime using dynamic molecular triplet excitons in aggregation systems composed of lanthanide complexes. To demonstrate the conceptual method, molecular crystals comprising lutetium (Lu3+) and luminescent lanthanide (europium: Eu3+ or terbium: Tb3+) complexes with two organic ligands (2,2,6,6-tetramethyl-3,5-heptanedionate and 2,7-bis(diphenylphosphoryl)phenanthrene) were prepared. These molecular crystals exhibited persistent emission via slow triplet exciton migration between the phenanthrene units. The extended degree of the lifetime could be controlled between 1 and 152 ms by ligand modifications. This proposed lifetime-tuning method should significantly expand the encoding capacity of lanthanide complexes.

権利情報:

• In Copyright
  

  This is the peer reviewed version of the following article: T. Nakai, K. Shima, M. Wang, S. Shoji, T. Nakanishi, K. Fushimi, Y. Hasegawa, Y. Kitagawa, Angew. Chem. Int. Ed.. 2025, 64, e202513236, which has been published in final form at https://doi.org/10.1002/anie.202513236. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

キーワード: coordination compound

刊行年月日: 2025-10-06

出版者: Wiley

掲載誌:

• Angewandte Chemie International Edition (ISSN: 14337851) vol. 64 issue. 41 e202513236

研究助成金:

• Japan Society for the Promotion of Science JP24K21774
• Japan Society for the Promotion of Science JP23H04863
• Japan Society for the Promotion of Science JP20H02748
• Japan Society for the Promotion of Science JP24K01589
• Japan Society for the Promotion of Science JP21H02031

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5937

公開URL: https://doi.org/10.1002/anie.202513236

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更新時刻: 2026-04-30 12:01:11 +0900

MDRでの公開時刻: 2026-08-26 08:27:29 +0900