Hexyl-substituted oligothiophenes with a central tetrafluorophenylene unit: crystal engineering of planar structures for p-type organic semiconductors

Rigidification has been achieved in thiophene - tetrafluorophenylene architectures through strong S center dot center dot center dot F and H center dot center dot center dot F intramolecular interactions; the resulting materials are promising candidates for p-type organic field effect transistors.