Bay-annulated indigo derivatives based on a core of spiro[fluorene-9,9′-xanthene]: Synthesis, photophysical, and electrochemical properties

Two positional isomers based on a spiro[fluorene-9,9′-xanthene] (SFX) core were synthesized by selectively appending bay-annulated indigo (BAI) units to the fluorene moiety or the xanthene moiety of SFX, respectively. Investigation of photophysical and electrochemical properties revealed that the tw...

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Bibliographic Details
Published in:Dyes and pigments 2019-01, Vol.160, p.25-27
Main Authors: Ren, Bao-Yi, Xu, Qin, Kolaczkowski, Matthew, Sun, Chang-Liang, Ou, Chang-Jin, Sun, Ya-Guang, Xie, Ling-Hai, Huang, Wei
Format: Article
Language:English
Subjects:
Bay-annulated indigo
Electrochemical properties
Optical properties
spiro[fluorene-9,9′-xanthene]
Synthesis
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Summary:Two positional isomers based on a spiro[fluorene-9,9′-xanthene] (SFX) core were synthesized by selectively appending bay-annulated indigo (BAI) units to the fluorene moiety or the xanthene moiety of SFX, respectively. Investigation of photophysical and electrochemical properties revealed that the two compounds were endowed with broad absorption, low LUMO level, and weak aggregation characteristics. The rational combination of planar BAI units with a three-dimensional SFX core makes them attractive n-type candidates for eco-friendly and sustainable organoelectronic devices. [Display omitted]
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2018.07.042