Renjie Wang, Lu Diao, Jie Zhang
Apr 1, 2020
Citations
0
Influential Citations
14
Citations
Journal
Dyes and Pigments
Abstract
Abstract Three new symmetrical 9,10-dithienylanthracene (DTA) derivatives, including 9,10-bis-(4-(4-methoxyphenyl)-5-methylthiophene-2-yl)anthracene (BMPTA), 9,10-bis-(5-methyl-4-phenylthiophene-2-yl)anthracene (BPTA), and 9,10-bis-(4-(4-cyanophenyl)-5-methylthiophene-2-yl)anthracene (BCPTA), with excellent aggregation-induced emission (AIE) behaviors had been designed and synthesized successfully. Crystal BMPTA and BPTA had nonplanar conformations because of the multiple intermolecular hydrogen bonding interaction between the adjacent molecules, which restricted their intramolecular rotation and enabled them to emit intensely. Additionally, both BMPTA and BPTA exhibited reversible mechanofluorochromic (MFC) performance by grinding-fuming, which was systematically investigated with powder X-ray diffraction (XRD), differential scanning calorimetry (DSC) and photoluminescent (PL) lifetime. The results showed that substituent groups had significant influence on their molecular packing, MFC and AIE properties. Furthermore, these DTA luminogens could be applied in cell imaging as fluorochrome.