Journal
TETRAHEDRON
Volume 70, Issue 4, Pages 924-929Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.12.015
Keywords
Aggregation induced emission; Reversible piezofluorochromic property; Alkyl-length dependent; Crystalline-amorphous phase transformation; Divinylanthracene derivative; Stimuli-responsive luminescent material
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Funding
- National Science Foundation of China [21134004, 21201108]
- National 973 Project [2011CB935700]
- China Postdoctoral Science Foundation [2013T60100, 2012M520243]
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Three 9,10-bis[(N-allcylphenothiazin-3-yl)vinyl]anthracene derivatives with different propyl, hexyl, and dodecyl side chains (AnPh(3), AnPh(6), and AnPh(12)) were synthesized and confirmed by standard spectroscopic methods. All of the compounds exhibited obvious aggregation induced emission (AIE) and piezofiuorochromic (PFC) properties. The PFC behaviors were investigated and showed that proportional alkyl-length dependent relationship existed not only in the ground states of the compounds, but also in the melted states compared with the fumed states of the compounds. The PFC mechanism was explored and ascribed to the crystalline amorphous phase transformation. More importantly, these derivatives showed reversible significant PFC properties and reproducibility in various states including fumed, ground, annealed, and melted states, making them promising stimuli-responsive and smart luminescent materials for pressure-sensors, information-recording, and light-emitting device applications. (C) 2013 Elsevier Ltd. All rights reserved.
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