作者:Dong Sun Kim、Younghun Kim、Dongwhan Lee、Yan Lee
DOI:10.1002/chem.202303458
日期:2024.3.12
sentence: A rational design strategy for 2-pyridone-based fluorophores with bright emission at long wavelengths is proposed. An intramolecular charge transfer-based 2-pyridone fluorophore with large molar absorptivity (ϵ=20,100 M−1 cm−1), longer emission wavelength (λem=539 nm), high emission quantum yield (ϕF=74 %), and large Stokes shift (Δv=5720 cm−1) is developed by the strategy.
TOC 句子:提出了一种在长波长下具有明亮发射的基于 2-吡啶酮的荧光团的合理设计策略。基于分子内电荷转移的2-吡啶酮荧光团,具有大摩尔吸收率(ϵ=20,100 M −1 cm −1 )、更长的发射波长(λ em =539 nm)、高发射量子产率(Φ F =74 %),以及该策略产生了大的斯托克斯位移(Δv=5720 cm -1 )。