6533b83afe1ef96bd12a7095

RESEARCH PRODUCT

Layered Thiadiazoloquinoxaline-Containing Long Pyrene-Fused N-Heteroacenes

Cunbin AnMartin BaumgartenWojciech PisulaWojciech PisulaKe ZhangDieter SchollmeyerDieter SchollmeyerBenlin Hu

subject

Materials science010405 organic chemistryTransistorGeneral MedicineGeneral ChemistryElectronCrystal structure010402 general chemistry01 natural sciencesElectron transport chainAffinitiesCatalysis0104 chemical scienceslaw.inventionCrystallographychemistry.chemical_compoundchemistrylawPyreneCyclic voltammetryHigh electron

description

Three thiadiazoloquinoxaline-containing long pyrene-fused N-heteroacenes with 8, 13, and 18 rings were designed and synthesized. They show high electron affinities (EAs) of approximately 4.1 eV, which were derived from the onset of the reduction peaks in cyclic voltammetry. Crystal structure analysis revealed in-plane extension through close contacts between thiadiazole units as well as layered packing, enabling in-plane and interlayer electron transport. Organic field-effect transistor devices provided electron mobilities, which suggest a potential way to enhance the charge transport in long N-heteroacenes.

https://doi.org/10.1002/anie.201803230