Issue 35, 2012

End-group effects of piezofluorochromic aggregation-induced enhanced emission compounds containing distyrylanthracene

Abstract

Distyrylanthracene derivatives, AnP3 and AnP3P with triphenylethylene end-groups, and AnP4 and AnP4P with tetraphenylethylene end-groups, were synthesized and characterized using nuclear magnetic resonance, mass spectrometry, elemental analysis, photoluminescence, ultraviolet-visible absorption, wide-angle X-ray diffraction, differential scanning calorimetry and other techniques. The results show that the piezofluorochromic properties of these four aggregation-induced enhanced emission (AIEE) compounds were influenced significantly by the structures of the end-groups in the molecules. The AnP4 and AnP4P derivatives with tetraphenylethylene end-groups exhibited distinct piezofluorochromic properties, which might be switched reversibly upon pressing or annealing because of crystalline-amorphous phase transformation. Thus, we propose that those AIEE compounds that contain steric hindrance groups may exhibit evident piezofluorochromic activities.

Graphical abstract: End-group effects of piezofluorochromic aggregation-induced enhanced emission compounds containing distyrylanthracene

Supplementary files

Article information

Article type
Paper
Submitted
17 May 2012
Accepted
19 Jul 2012
First published
20 Jul 2012

J. Mater. Chem., 2012,22, 18505-18513

End-group effects of piezofluorochromic aggregation-induced enhanced emission compounds containing distyrylanthracene

X. Zhang, Z. Chi, B. Xu, C. Chen, X. Zhou, Y. Zhang, S. Liu and J. Xu, J. Mater. Chem., 2012, 22, 18505 DOI: 10.1039/C2JM33140C

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