Piezochromic luminescence and aggregation induced emission of 9,10-bis[2-(2-alkoxynaphthalen-1-yl)vinyl]anthracene derivatives  

作　　者：Xin-Yu Teng Xing-Chun Wu Yu-Qi Cao Yue-Hua Jin Yang Li Xi-Long Yan Bo-Wei Wang Li-Gong Chen 

机构地区：[1]School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China [2]Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China [3]Tianjin Bohai Fine Chemical Co.,Ltd.,Tianjin 300072,China [4]Tianjin Engineering Research Center of Functional Fine Chemicals,Tianjin 300072,China

出　　处：《Chinese Chemical Letters》2017年第7期1485-1491,共7页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(No.21576194)

摘　　要：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.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.

关 键 词：9 10-Divinylanthracenes Piezofluorochromic Aggregation induced emission Alkoxyl-length dependent Stimuli-responsive material 

分 类 号：O644.1[理学—物理化学]