Benzothiazolium-functionalized tetraphenylethene: an AIE luminogen with tunable solid-state emission

Na Zhao; Zhiyong Yang; Jacky W. Y. Lam; Herman H. Y. Sung; Ni Xie; Sijie Chen; Huimin Su; Meng Gao; Ian D. Williams; Kam Sing Wong; Ben Zhong Tang

doi:10.1039/C2CC33780K

Benzothiazolium-functionalized tetraphenylethene: an AIE luminogen with tunable solid-state emission†

Na Zhao,^a Zhiyong Yang,^a Jacky W. Y. Lam,^a Herman H. Y. Sung,^a Ni Xie,^a Sijie Chen,^a Huimin Su,^b Meng Gao,^a Ian D. Williams,^a Kam Sing Wong^b and Ben Zhong Tang*^ac

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* Corresponding authors

^a Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Molecular Neuroscience, Institute of Molecular Functional Materials and Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
E-mail: tangbenz@ust.hk

^b Department of Physics, HKUST, Clear Water Bay, Kowloon, Hong Kong, China

^c Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, China

Abstract

Melding a benzothiazolium unit with tetraphenylethene generates a new hemicyanine luminogen with aggregation-induced emission characteristics; the luminogen exhibits crystochromism and its solid-state emission can be repeatedly tuned from yellow or orange to red by grinding–fuming or grinding–heating processes due to the transformation from the crystalline to the amorphous state and vice versa.

Chemical Communications

Benzothiazolium-functionalized tetraphenylethene: an AIE luminogen with tunable solid-state emission†

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