Red circularly polarized luminescence from intramolecular excimers restricted by chiral aromatic foldamers
2021
Zheng, Dan | Guo, Shengzhu | Zheng, Lu | Xu, Qi | Wang, Ying | Jiang, Hua
Aromatic oligoamide foldamers are highlighted as a verstile paltform for developing single-handed foldamers with two aromatic acetenyl groups at the same side. The foldamers with pyrene acetenyl units exhibit red excimer emissions, which were circularly polarized and show interesting circularly polarized luminescence properties with high CPL brightness BCPL up to 109.8 M⁻¹.cm⁻¹. The red excimer CPL was attributed to the extended conjugations and the spatial restriction of pyrene units at the same side of foldamers.
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