Photo-Switchable Aggregation-Induced Emission of Bisthienylethene-Dipyrimido[2,1- b][1,3]benzothiazole Triad

Shan-Shan Gong; Chun-Hong Zheng; Zhen-Zhen Chen; Dong-Zhao Yang; Mei Chi; Shou-Zhi Pu; Qi Sun

doi:10.3390/molecules26175382

Photo-Switchable Aggregation-Induced Emission of Bisthienylethene-Dipyrimido[2,1- b][1,3]benzothiazole Triad

Molecules. 2021 Sep 4;26(17):5382. doi: 10.3390/molecules26175382.

Authors

Shan-Shan Gong^{1

2}, Chun-Hong Zheng², Zhen-Zhen Chen², Dong-Zhao Yang², Mei Chi², Shou-Zhi Pu^{1

2

3}, Qi Sun²

Affiliations

¹ College of Chemistry, Nanchang University, Nanchang 330031, China.
² Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
³ Department of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China.

Abstract

A bisthienylethene-dipyrimido[2,1-b][1,3]benzothiazole (BTE-2PBT) triad has been designed and synthesized based on our recent discovery of PBTs as atypical propeller-shaped novel AIEgens. The triad not only maintains the photochromic properties of BTE moiety in solution, film, and solid state but also exhibits remarkable AIE properties. Moreover, the fluorescence of BTE-2PBT PMMA film could be modulated with high contrast by alternate UV and visible light irradiation. Photoerasing, rewriting, and non-destructive readout of fluorescent images on BTE-2PBT PMMA film well demonstrate its potential application as optical memory media.

Keywords: AIE; diarylethene; photochromism; photoswitch; pyrimido[2,1-b][1,3]benzothiazole.

Abstract

Grants and funding