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- Title
Spin‐Distribution‐Directed Regioselective Substitution Strategy for Highly Stable Olympicenyl Radicals.
- Authors
Wang, Peng; Xiang, Qin; Tian, Miaoyue; Tao, Sheng; Xu, Zhuofan; Guo, Yupeng; Hu, Wenping; Sun, Zhe
- Abstract
The synthesis of bench‐stable conjugated π‐radicals is challenging owing to the lack of modular approaches, which greatly hampers their practical material screens and applications. Here, we demonstrate a spin‐distribution‐directed regioselective substitution strategy to introduce substituents into the specific positions of an olympicenyl radical in a stepwise manner, resulting in a series of highly stable radical species. The substituents can also adjust the crystal packing by means of steric and electronic factors, enabling the changing from a π‐dimer to a pseudo‐one‐dimensional chain. The first single crystal organic field‐effect transistor device based on a graphenic radical is fabricated in air, showing a hole mobility of up to 0.021 cm2 V−1 s−1 and excellent device stability. This approach may be generalized to diverse spin‐delocalized open‐shell organic radicals.
- Subjects
ORGANIC field-effect transistors; FIELD-effect devices; HOLE mobility; SINGLE crystals; RADICALS
- Publication
Angewandte Chemie, 2023, Vol 135, Issue 46, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202313257