A triphenylamine-based benzoxazole derivative as a high-contrast piezofluorochromic material induced by protonationElectronic supplementary information (ESI) available: Detailed synthesis experiment, titration, absorption and emission spectra of BVDP in solutions, NMR spectra of BVDP before and after addition of trifluoroacetic acid, absorption spectra, polarizing microscopy images and XRD patterns of films, and the cif file for the BVDP crystal. CCDC 973275. For ESI and crystallographic data in

A triphenylamine-based benzoxazole derivative exhibits a low contrast piezofluorochromic behavior under external pressure, and a high-contrast fluorescence change induced by protonation can be observed. A triphenylamine-based benzoxazole derivative ( BVDP ) as a typical D-π-A molecule could be used...

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Main Authors: Xue, Pengchong, Chen, Peng, Jia, Junhui, Xu, Qiuxia, Sun, Jiabao, Yao, Boqi, Zhang, Zhenqi, Lu, Ran
Format: Article
Language:English
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Summary:A triphenylamine-based benzoxazole derivative exhibits a low contrast piezofluorochromic behavior under external pressure, and a high-contrast fluorescence change induced by protonation can be observed. A triphenylamine-based benzoxazole derivative ( BVDP ) as a typical D-π-A molecule could be used as a low contrast piezofluorochromic material with a spectral red-shift of 29 nm. However, when BVDP bound a proton to form BVDP+H , a high contrast piezofluorochromism (Δ λ = 75 nm) could be observed.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc49208g