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Triphenylamine functionalized beta-Ketoiminate boron complex exhibiting aggregation-induced emission and mechanofluorochromism
Zhou, Lin1; Xu, Defang2; Gao, Huaizhi1; Han, Aixia1; Liu, Xingliang1; Zhang, Chao1; Li, Zheng1; Yang, Yan1
2017-02-01
Source PublicationDYES AND PIGMENTS
Volume137Pages:200-207
SubtypeArticle
AbstractA new triphenylamine functionalized beta-Ketoiminate boron complex BF2-TPA that bears the electron donor triphenylamine and the electron acceptor 13-iminoenolate boron moiety, has been designed and successfully synthesized. The D-pi-A type conjugated compound showed obvious intramolecular charge transfer (ICT) properties, which were evidenced by theoretical calculations and spectral analysis. The compound exhibited evident AIE characteristic with high fluorescence quantum yield in the solid state. BF2-IPA was quite weakly fluorescent in THF, while a significant AIE effect was observed in water/THF (f(w) = 70%) mixtures with a large AIE factor of 188. Interestingly, BF2-TPA possesses the distinct mechanofluorochromic (MFC) behavior. The as-prepared powder of BF2-TPA could emit strong yellow light centered at 549 nm under UV irradiation, and the fluorescence color changed into orange (590 nm) after grinding, a red shift of 41 nm was observed. Such mechanochromism was reversible upon the treatment of grinding and fuming with CH2Cl2. The powder XRD studies showed that the MFC nature is generated through crystalline-amorphous phase transformation under the stimulus of external force. The relationship between the structure and the properties was studied in detail. The results obtained would be of great help in understanding the MFC mechanism and designing new MFC materials. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordBeta-ketoiminate Boron Complex Mechanofluorochromism Aggregation Induced Emission Intramolecular Charge Transfer Triphenylamine
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS KeywordINTRAMOLECULAR CHARGE-TRANSFER ; CRYSTALLIZATION-INDUCED EMISSION ; SOLID-STATE FLUORESCENCE ; LIGHT-EMITTING-DIODES ; ENHANCED EMISSION ; ORGANIC NANOPARTICLES ; SECURITY PROTECTION ; BODIPY DERIVATIVES ; COLOR CHANGES ; LUMINESCENCE
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Engineering ; Materials Science
WOS SubjectChemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
WOS IDWOS:000390182700023
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6183
Collection青海盐湖研究所知识仓储
Affiliation1.Qinghai Univ, Chem Engn Coll, Xining 810016, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Lin,Xu, Defang,Gao, Huaizhi,et al. Triphenylamine functionalized beta-Ketoiminate boron complex exhibiting aggregation-induced emission and mechanofluorochromism[J]. DYES AND PIGMENTS,2017,137:200-207.
APA Zhou, Lin.,Xu, Defang.,Gao, Huaizhi.,Han, Aixia.,Liu, Xingliang.,...&Yang, Yan.(2017).Triphenylamine functionalized beta-Ketoiminate boron complex exhibiting aggregation-induced emission and mechanofluorochromism.DYES AND PIGMENTS,137,200-207.
MLA Zhou, Lin,et al."Triphenylamine functionalized beta-Ketoiminate boron complex exhibiting aggregation-induced emission and mechanofluorochromism".DYES AND PIGMENTS 137(2017):200-207.
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