Multi-Stimuli-Responsive Fluorescence Switching of a Donor-Acceptor π-Conjugated Compound
Multi-Stimuli-Responsive Fluorescence Switching of a Donor-Acceptor π-Conjugated Compound
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DOI：
10.1021/jz200140c
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发表时间：
2011-03-17
影响因子：
5.7
通讯作者：
Wang, Yue
中科院分区：
文献类型：
--
作者：
Dou, Chuandong;Han, Liang;Wang, Yue
设计了一种由三氟甲基联苯和氰基二苯乙烯胺组成的电子给体-受体结构的π共轭有机化合物1，并显示出多刺激响应的荧光开关行为。合成的固体具有压色性，研磨和加热可以改变橙红色和黄色之间的发射颜色。无定形1还显示出有趣的蒸气变色行为，因为有机蒸气可以将黄色转化为橙子。化合物1的溶液在室温下几乎没有荧光，在77 K下有强烈的黄绿色发射，而加入CF 3COOH（TFA）后，在室温下有绿色发射，在77 K下有蓝色荧光。
An electron donor-acceptor structured pi-conjugated organic compound 1 composed of trifluoromethyl-biphenyl and cyano-stilbene-amine was designed and exhibited multi-stimuli-responsive fluorescence switching behaviors. The synthesized solid exhibited piezochromism in that grinding and heating could change the emission colors between orange-red and yellow. The amorphous 1 also showed interesting vapochromic behavior in that organic vapor could convert the yellow color into orange. The solution of 1 exhibited nearly no fluorescence at room temperature and intensive yellowish green emission at 77 K, while adding CF3COOH (TFA) resulted in green emissive state at room temperature and blue fluorescent state at 77 K.