Regulation of aggregation-induced emission behaviours and mechanofluorochromism of tetraphenylethene through different oxidation states of sulphur moieties

Qin Yang; Dongyang Li; Weijie Chi; Ronghui Guo; Bin Yan; Jianwu Lan; Xiaogang Liu; Jun Yin

doi:10.1039/C9TC01848D

Regulation of aggregation-induced emission behaviours and mechanofluorochromism of tetraphenylethene through different oxidation states of sulphur moieties†

Qin Yang,^a Dongyang Li,^b Weijie Chi,^c Ronghui Guo,

^a Bin Yan,^a Jianwu Lan,*^a Xiaogang Liu

*^c and Jun Yin

*^bd

Author affiliations

* Corresponding authors

^a College of Light Industry and Textile and Food Engineering, Sichuan University, Chengdu, Sichuan, China
E-mail: lanjw@scu.edu.cn

^b Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
E-mail: yinj@mail.ccnu.edu.cn

^c Singapore University of Technology and Design, 8 Somapah Road, Singapore
E-mail: xiaogang_liu@sutd.edu.sg

^d State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, the Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong, P. R. China

Abstract

Different oxidation states of sulphur can be used to regulate the aggregation-induced emission (AIE) behaviours and reversible mechanofluorochromic properties of tetraphenylethene (TPE) derivatives. With the introduction of oxygen atoms via the oxidation of thioether-containing TPE, the AIE properties and aggregation turn-on threshold of AIE luminogens (AIEgens) could be regulated. The single crystal structures revealed that weak intermolecular interactions might reduce the emission intensities of 1 in the crystalline phase. In addition, one sulphone-containing TPE derivative 3 demonstrated polymorphism-dependent fluorescence of different colours due to different packing modes, resulting in tricolored emission switching.

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DOI: https://doi.org/10.1039/C9TC01848D
Article type: Paper
Submitted: 05 Apr 2019
Accepted: 08 Jun 2019
First published: 11 Jun 2019

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J. Mater. Chem. C, 2019,7, 8244-8249

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Regulation of aggregation-induced emission behaviours and mechanofluorochromism of tetraphenylethene through different oxidation states of sulphur moieties

Q. Yang, D. Li, W. Chi, R. Guo, B. Yan, J. Lan, X. Liu and J. Yin, J. Mater. Chem. C, 2019, 7, 8244 DOI: 10.1039/C9TC01848D

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Journal of Materials Chemistry C

Regulation of aggregation-induced emission behaviours and mechanofluorochromism of tetraphenylethene through different oxidation states of sulphur moieties†

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Regulation of aggregation-induced emission behaviours and mechanofluorochromism of tetraphenylethene through different oxidation states of sulphur moieties

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