Insulation of a coumarin derivative with [1]rotaxane to control solvation-induced effects in excited-state dynamics for enhanced luminescence
Insulation of a coumarin derivative with [1]rotaxane to control solvation-induced effects in excited-state dynamics for enhanced luminescence
复制标题
用[1]轮烷绝缘香豆素衍生物，控制激发态动力学中溶剂化诱导的效应，从而增强发光
DOI：
10.1039/d2cp02221d
复制
发表时间：
2022
影响因子：
3.3
通讯作者：
Terao Jun
中科院分区：
文献类型：
--
作者：
Russell Go M.;Masai Hiroshi;Terao Jun
带有[1]轮烷结构的香豆素衍生物与全甲基化α-环糊精抑制了不必要的溶剂化诱导效应，并增加了在中等和高极性溶剂中的发光量子产率。在π共轭体系中，非辐射衰减被扭曲所抑制，而辐射衰减被极化诱导的结构变化的抑制所增强。
A coumarin derivative bearing a [1]rotaxane structure with permethylated α-cyclodextrins suppressed unwanted solvation-induced effects and increased luminescent quantum yields in medium- and high-polarity solvents. The non-radiative decay was suppressed by the twist in the π-conjugated system and the radiative decay was enhanced by the suppression of the polarity-induced structural changes.