Design, synthesis, and photoelectric properties of V-shaped organic fluorescent compounds with a 1,3,4-oxadiazole moiety

A series of symmetric, silicon-linked organic fluorescent compounds with two electron-deficient 1,3,4-oxadiazole units were synthesized and characterized. The compounds possessed a V-shaped structure with a silicon atom, which weakened π–π stacking, promoting aggregation-induced emission. The compou...

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Bibliographic Details
Published in:Journal of chemical research 2019-01, Vol.43 (1-2), p.3-7
Main Authors: Hou, Rui-Bin, Su, Ji-Ying, Zhang, Ling-Ling, Li, Dong-Feng, Xia, Yan
Format: Article
Language:English
Subjects:
Authorship
Chemical compounds
Electron transport
Fluorescence
Ions
Oxadiazoles
Photoelectric effect
Photoelectricity
Silicon compounds
Thermal stability
Thin films
Voltammetry
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Summary:A series of symmetric, silicon-linked organic fluorescent compounds with two electron-deficient 1,3,4-oxadiazole units were synthesized and characterized. The compounds possessed a V-shaped structure with a silicon atom, which weakened π–π stacking, promoting aggregation-induced emission. The compounds were fluorescent in both solution and solid-state thin films. The efficient fluorescent behavior of the materials was confirmed through optical and electrochemical measurements. The compounds displayed excellent thermal stability, with decomposition temperatures exceeding 400 °C. Amorphous films of the compounds possessed high morphological stability. These results indicate that the compounds may be promising emissive and electron-transporting materials.
ISSN:1747-5198
2047-6507
DOI:10.1177/1747519819831881