Layered Thiadiazoloquinoxaline‐Containing Long Pyrene‐Fused N‐Heteroacenes. (27th August 2018)

• Record Type: Journal Article
• Authors: Hu, Ben‐Lin; Zhang, Ke; An, Cunbin; Schollmeyer, Dieter; Pisula, Wojciech; Baumgarten, Martin
• Is Part Of: Angewandte Chemie. Volume 130:Number 38(2018)
• Page Start: 12555
• Page End: 12559
• Publication Date: 2018-08-27
• Subjects: Elektronentransport -- N-Heterocyclen -- Polycyclen -- Thiadiazolochinoxaline -- Zweidimensionale Packung; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201803230
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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.