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Published on: August 10, 2020
Diagonally π-Extended Perylene-Based Bis(heteroacene) for Chiroptical Activity and Integrating Luminescence with
Bo Li1, Wangwang Peng1, Shenglian Luo2
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China.
Abstract:
We report the synthesis and characterization of a novel bis(heteroacene), in which four benzothiophene units diagonally fused to a twisted perylene and spatially arranged in a double helical-like structure. The described compound yielded chiroptically active atropisomers with a perfect CD response and furthermore circularly polarized luminescence with a glum of ∼1.09 × 10-3. The racemate showed strong photoluminescence both in solution (Φ f = 68%) and at the solid state (Φ f = 57%) and, meanwhile, possessed the charge-carrier transport property with a hole mobility (μh) up to 0.02 cm2 V-1 s-1 by the thin-film based OFET measurements. The integrated optoelectronic features are primarily associated with the specifically finetuned perylene-based π-extended structure.
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