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| 1 | Aggregation-induced phosphorescence and mechanochromic luminescence of a tetraphenylethene-based gold(Ⅰ) isocyanide complex显示文摘In this study,a new twisting gold(Ⅰ) isocyanide complex based on tetraphenylethene(TPE),TPE-NC-Au.was designed and synthesized.It exhibits aggregation induced phosphorescence(AIP) characteristics,owing to the incorporation of Au moiety and conformation rigidification in the aggregated states.Moreover,the emission color of the crystalline solid of TPE-NC-Au changes from blue(454 nm) to green(500 nm) in response to mechanical grinding,due to the combined effects of conformation planarization,enhanced π…π stacking,as well as the emergence of aurophilic interactions in the ground amorphous state.Notably,the emission color can be restored upon solvent fuming,associating with the reconstruction of crystalline lattices.The AIP and switchable mechanochromism of TPE-NC-Au make it suitable for potential applications in bioimaging,sensing,and optoelectronic devices. | Wen-Bo Li Wei-Jian Luo Kai-Xuan Li Wang-Zhang Yuan Yong-Ming Zhang | 2017 | Chinese Chemical Letters2017，28，6： | 1 |
| 2 | Piezochromic luminescence and aggregation induced emission of 9,10-bis[2-(2-alkoxynaphthalen-1-yl)vinyl]anthracene derivatives显示文摘Four derivatives of 9,10-bis[2-(2-alkoxynaphthalen-1-yl)vinyl]anthracene(BNAs) were designed,successfully synthesized and characterized by spectrofluorometer, powder wide-angle X-ray diffraction(PXRD) and differential scanning calorimetry experiments(DSC), etc. It was found that these compounds exhibited aggregation-induced emission phenomenon. Moreover, these target compounds displayed reversible color change from yellow to orange upon pressing and annealing process. Interestingly, all of BNAs obviously presented red-shifted piezofluorochromic(PFC) properties and behaved mainly length dependence of alkoxy group, in which, BNA displayed the largest PFC spectral shift(DlPFC= 26 nm). The PXRD profiles demonstrated the transformation from crystalline to amorphous state upon grinding, and the mechanism of PFC behaviors was proposed. Thus, changing the length of alkoxyl chain could be an alternative way to tune their PFC behaviors. | Xin-Yu Teng Xing-Chun Wu Yu-Qi Cao Yue-Hua Jin Yang Li Xi-Long Yan Bo-Wei Wang Li-Gong Chen | 2017 | Chinese Chemical Letters2017，28，7： | 0 |
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