期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2022, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.202101315
关键词
Arenes; Aromaticity; Organic semiconductors; Polycycles; pi-Stacking
资金
- Research Matching Grant from the University Grants Committee (Hong Kong)
The study revealed that different regioisomeric polycyclic conjugated scaffolds exhibit varied local aromaticity and photophysical properties. Tuning the pi-stacking can lead to a p-type organic semiconductor suitable for solution-processed thin film transistors.
This study explored new polycyclic conjugated scaffolds combining pyrene and cyclobutadienoid rings. Regioisomeric bis(naphthocyclobuta)pyrenes were synthesized and characterized by single-crystal X-ray crystallography. It was found that the regioisomeric polycyclic conjugated scaffolds exhibit different local aromaticity and photophysical properties as a result of the different fusion patterns of pyrene and cyclobutadienoid. Tuning the pi-stacking of bisnaphtho[2 ',3 ':3,4]cyclobuta[1,2-e:1 ',2 '-l]pyrene by changing the length of the alkyl substituents led to a p-type organic semiconductor for solution-processed thin film transistors.
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