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Layered Thiadiazoloquinoxaline‐Containing Long Pyrene‐Fused N‐Heteroacenes
Author(s) -
Hu BenLin,
Zhang Ke,
An Cunbin,
Schollmeyer Dieter,
Pisula Wojciech,
Baumgarten Martin
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201803230
Subject(s) - pyrene , cyclic voltammetry , electron transport chain , chemistry , crystallography , organic semiconductor , electron , materials science , stereochemistry , electrochemistry , electrode , organic chemistry , physics , biochemistry , quantum mechanics
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.