A series of phenanthrothiophenes are designed and synthesized from polyarylthiophenes through regioselective Scholl reactions in one step using iron chloride as catalyst. The molecular structures of these heteroarenes displayed multiple twisted fjords, which perturb the shapes of the polycyclic frameworks to pack in slipped to near‐perfect face‐to‐face styles in parallel or antiparallel packings. Field‐effect transistor devices using single crystals of 6,12‐difluorodiphenanthro[9, 10‐b:9′, 10′]thiophene gave a hole mobility of 0.22 cm² V⁻¹ s⁻¹.

中文翻译：

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访问二苯并噻吩以外的π扩展杂环：菲咯噻吩的合成与性质

使用氯化铁作为催化剂，通过区域选择性的Scholl反应，由聚芳基噻吩设计并合成了一系列的噻吩噻吩。这些杂芳烃的分子结构显示出多个扭曲的峡湾，扰乱了多环骨架的形状，以平行或反平行堆积的方式滑移至接近完美的面对面样式。使用6,12-二氟联菲[9，10-b：9'，10']噻吩单晶的场效应晶体管器件的空穴迁移率为0.22 cm ² V ^-1 s ^-1。