A -shaped cyanostilbene derivative: multi-stimuli responsive fluorescence sensors, rewritable information storage and colour converter for w-LEDs

被引：59
作者：
Fang, Wenyan [1 ,2 ]
Zhao, Wang [2 ]
Pei, Pan [2 ]
Liu, Rui [2 ]
Zhang, Yuyang [1 ]
Kong, Lin [1 ]
Yang, Jiaxiang [1 ,3 ]
机构：
[1] Anhui Univ, Coll Chem & Chem Engn, Key Lab Funct Inorgan Mat Anhui Prov, Hefei 230601, Anhui, Peoples R China
[2] Huainan Normal Univ, Sch Chem & Mat Engn, Huainan 232038, Anhui, Peoples R China
[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 502100, Shandong, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2018年 / 6卷 / 34期
基金：
中国国家自然科学基金;
关键词：
AGGREGATION-INDUCED EMISSION; CRYSTALLIZATION-INDUCED EMISSION; CONVERSION PHOSPHORS; RED PHOSPHOR; SCHIFF-BASE; LIGHT; COMPLEXES; MECHANOFLUOROCHROMISM; LUMINESCENCE; ENHANCEMENT;
D O I：
10.1039/c8tc02973c
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new -shaped -cyanostilbene derivative (TSA) containing an active amino group with fluorescence emission both in solution and the solid state was designed, synthesized and characterized. Its colour and fluorescence emission can be switched by external stimuli including acid/base, trinitrophenol (picric acid, PA) and grinding. The H-1 NMR spectra of TSA were recorded before and after alternately adding trifluoroacetic acid (TFA) and triethylamine (TEA), which confirmed that acidichromism originated in the transformation of protonation/deprotonation between TSA and TSA-H+. Powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) revealed the crystalline-amorphous state transformation between the original and ground compounds, and this transformation could reasonably account for the mechanochromic (MFC) luminescence properties. The results revealed that TSA can be used as a fluorescence sensor for acid/base and PA, and as a rewritable information storage material. Moreover, it can also be applied in white light-emitting diodes (w-LEDs) based on its desirable fluorescence emission in the solid state.
引用
收藏
页码：9269 / 9276
页数：8
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