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Tetraphenylethene modified beta-ketoiminate boron complexes bearing aggregation-induced emission and mechanofluorochromism
Gao, Huaizhi1; Xu, Defang2; Liu, Xingliang1; Han, Aixia1; Zhou, Lin1; Zhang, Chao1; Yang, Yan1; Li, Wenlin1
2017
发表期刊RSC ADVANCES
卷号7期号:3页码:1348-1356
文章类型Article
摘要Two new tetraphenylethene modified beta-ketoiminate boron complexes (TTPE-H and TTPE-CN) have been rationally designed and successfully synthesized. The two D-pi-A type compounds exhibit typical twisted intramolecular charge-transfer (TICT) emission and evident aggregation-induced emission (AIE) characteristics, remarkable luminescence mechanochromism, and high solid state efficiency (up to 0.785 and 0.672). The mechanofluorochromic (MFC) behaviors of TTPE-H (from bright green to yellow-green emission, lambda(em) from 497 to 515 nm) and TTPE-CN (from bright yellow-green to yellow emission, lem from 525 to 565 nm) are reversible upon grinding and fuming treatments. From the X-ray diffraction and differential scanning calorimetry analyses, it was confirmed that the MFC properties of TTPE-H and TTPE-CN should be derived from a phase transition between crystalline and amorphous states. More interestingly, the compound TTPE-CN, which possesses a cyano group in the boron chelating ring, showed more contrast MFC behavior relative to TTPE-H. The reason is that the introduction of the cyano group can enhance the distortion degree of the molecule TTPE-CN because of steric hindrance.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CRYSTALLIZATION-INDUCED EMISSION ; INTRAMOLECULAR CHARGE-TRANSFER ; SOLID-STATE LUMINESCENCE ; OPTICAL-PROPERTIES ; PIEZOCHROMIC LUMINESCENCE ; RESPONSIVE FLUORESCENCE ; ORGANIC NANOPARTICLES ; SECURITY PROTECTION ; CONJUGATED POLYMERS ; MULTIPLE CHROMISMS
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000393744400020
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6188
专题青海盐湖研究所知识仓储
作者单位1.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
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GB/T 7714
Gao, Huaizhi,Xu, Defang,Liu, Xingliang,et al. Tetraphenylethene modified beta-ketoiminate boron complexes bearing aggregation-induced emission and mechanofluorochromism[J]. RSC ADVANCES,2017,7(3):1348-1356.
APA Gao, Huaizhi.,Xu, Defang.,Liu, Xingliang.,Han, Aixia.,Zhou, Lin.,...&Li, Wenlin.(2017).Tetraphenylethene modified beta-ketoiminate boron complexes bearing aggregation-induced emission and mechanofluorochromism.RSC ADVANCES,7(3),1348-1356.
MLA Gao, Huaizhi,et al."Tetraphenylethene modified beta-ketoiminate boron complexes bearing aggregation-induced emission and mechanofluorochromism".RSC ADVANCES 7.3(2017):1348-1356.
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