Air-Stable Donor–Acceptor Type Luminescent Allyl Radicals Based on an Indene Scaffold
We report a novel indene-based allyl radical ( ARI-Ph ) and three donor–acceptor (D–A) derivatives ( DPA-ARI-Ph, ARI-TPA, and ARI-Ph-DPA ). Single-crystal X-ray analysis confirms their allyl type structures. Photophysical studies reveal that emission efficiency is governed by vibronic coupling and structural rigidity. ARI-Ph-DPA shows the lowest reorganization energy and minimal overlap between high-frequency vibrations and the charge-transfer pathway. This work presents stable luminescent allyl radicals and offers a design principle for radical emitters.
Authors
- Yihao Jiang (ORCID: https://orcid.org/0000-0001-7694-3089)
- Shaoqiang Dong (ORCID: https://orcid.org/0000-0002-7498-145X)
- Xiaojie Zhang (ORCID: https://orcid.org/0000-0002-8204-4845)
- Xiaoyu Han (ORCID: https://orcid.org/0000-0003-3882-4630)
- Yi Jiang
Institutions
- Hebei University of Technology (CN)
- Nantong University (CN)
- Nankai University (CN)
Publication Details
- Journal
- Organic Letters
- Published
- 2026-07-02
- DOI
- https://doi.org/10.1021/acs.orglett.6c02316
- Primary Topic
- Lanthanide and Transition Metal Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China