Turn-on mode fluorescent diarylethene containing neopentyl substituents that undergoes all-visible-light switching
Turn-on mode fluorescent diarylethene containing neopentyl substituents that undergoes all-visible-light switching
复制标题
含有新戊基取代基的开启模式荧光二芳基乙烯，可进行全可见光切换
DOI：
10.1039/d2cc00554a
复制
发表时间：
2022
影响因子：
4.9
通讯作者：
M. Irie
中科院分区：
文献类型：
--
作者：
R. Nishimura;E. Fujisawa;I. Ban;R. Iwai;S. Takasu;M. Morimoto;M. Irie
本文提出了一种改善开启模式荧光二芳基乙烯衍生物的全可见光开关响应的策略。在氧化型双(苯并硫基)全氟环戊烯衍生物的活性碳(2-和2‘-位)上引入新戊基或异丁基，在可见光照射下进行环化和环化反应，与乙基取代的衍生物相比，能有效地提高环化量子产率一个或两个数量级。新戊基或异丁基的引入对环化反应和荧光量子产率没有明显的影响。
This paper presents a strategy for improving the all-visible-light switching response of turn-on mode fluorescent diarylethene derivatives. Introduction of neopentyl or isobutyl substituents at the reactive carbons (2- and 2′-positions) of an oxidized bis(benzothienyl)perfluorocyclopentene derivative, which undergoes both cyclization and cycloreversion reactions upon irradiation with visible light, was effective in increasing the cycloreversion quantum yield by one or two orders of magnitude in comparison with the yield of an ethyl-substituted derivative. Any significant influence on the cyclization and fluorescence quantum yields was not observed by the introduction of neopentyl or isobutyl substituents.