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- Title
Double Thia/sulfone[7]helicenes with Controlled Photophysical and Chiroptical Properties by Heteroatom Variation.
- Authors
Zhou, Long; Liu, Haoliang; Tan, Jingyun; Liu, Chao; Cao, Xiao‐Yu; Narita, Akimitsu; Hu, Yunbin
- Abstract
The development of helicenes with strong chiroptical response and controlled photophysics is highly desirable but challenging. In this work, double thia/sulfone[7]helicenes were synthesized to investigate the heteroatom effect on the photophysical and chiroptical properties of double heterohelicenes through comparison with the previously reported double oxa[7]helicene. By variation of the embedded heteroatoms from oxygen to sulfur, the absorption and emission were significantly red‐shifted, along with the improved luminescence dissymmetry factor (glum). In particular, the double sulfone[7]helicene exhibited strong red to near‐infrared (NIR) emission with glum of 1.1×10−3, suggesting its potential as a NIR circularly polarized luminescence emitter.
- Subjects
HELICENES; LUMINESCENCE; SULFUR; SULFONES; ABSORPTION; OXYGEN
- Publication
Chemistry - An Asian Journal, 2022, Vol 17, Issue 16, p1
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.202200336