Y. Ie, Masashi Nitani, Motomi Ishikawa
May 2, 2007
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0
Influential Citations
56
Citations
Journal
Organic letters
Abstract
The synthesis of difluoromethylene-bridged bithiophene and its oligothiophenes are reported. The spectroscopic and electrochemical measurement as well as X-ray analyses unambiguously revealed that the difluoromethylene bridge largely contributes to keeping planarity between the thiophene rings and lowering the LUMO level. The perfluorohexyl-substituted quaterthiophene derivatives showed n-type semiconducting behavior with field-effect electron mobilities up to 0.018 cm2 V-1 s-1.