Halogenated tetraphenylethene with enhanced aggregation-induced emission: an anomalous anti-heavy-atom effect and self-reversible mechanochromism
Halogenated tetraphenylethene with enhanced aggregation-induced emission: an anomalous anti-heavy-atom effect and self-reversible mechanochromism
复制标题
具有增强聚集诱导发射的卤化四苯乙烯：异常反重原子效应和自可逆力致变色
DOI：
10.1039/c9cc07045a
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发表时间：
2019
影响因子：
4.9
通讯作者：
Qian Zhaosheng
中科院分区：
文献类型：
--
作者：
Xu Pengfei;Qiu Qianqian;Ye Xinru;Wei Mengru;Xi Wenbin;Feng Hui;Qian Zhaosheng
卤代四苯乙烯衍生物显示出独特的反重原子效应，其中引入重卤素如溴大大提高了聚集时的荧光量子产率，与经典的重原子效应相反。溴化热塑性弹性体独特的自可逆机械致色性归因于卤-卤键断裂后的再生。
Halogenated tetraphenylethene derivatives show a unique anti-heavy-atom effect where introducing heavy halogens like bromine greatly improves the fluorescence quantum yield upon aggregation, contrary to the classic heavy-atom effect. The unique self-reversible mechanochromism of brominated TPE is attributed to re-generation of halogen–halogen bonding after its breakage.