Download all files (3.09 MB)

Collection

Citation

Description:

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.

Rights:

• 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.

Keyword: coordination compound

Date published: 2025-10-06

Publisher: Wiley

Journal:

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

Funding:

• 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

Manuscript type: Author's version (Accepted manuscript)

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

First published URL: https://doi.org/10.1002/anie.202513236

Related item:

Other identifier(s):

Contact agent:

Updated at: 2026-04-30 12:01:11 +0900

Published on MDR: 2026-08-26 08:27:29 +0900