abstract
An approach for the synthesis of pyrene-fused acenes that allows the introduction of electron-withdrawing,Cyano groups in key positions that simultaneously (i) induce twists in the aromatic framework and (ii) stabilize the LUMO level is reported. This combination of steric and electronic features provide a twisted, stable, and n-type tetrabenzoheptacene as confirmed by a combination of theoretical calculations and optical, electrochemical, thermal, and elearical characterization.
keywords
PYRENE-FUSED AZAACENES; FIELD-EFFECT TRANSISTORS; THIN-FILM TRANSISTORS; ORGANIC SEMICONDUCTORS; FLUORESCENCE; ELECTRON; ACENES; TETRAAZAHEPTACENE; MOLECULES; EFFICIENT
subject category
Chemistry
authors
Martinez-Abadia, M; Antonicelli, G; Zuccatti, E; Atxabal, A; Melle-Franco, M; Hueso, LE; Mateo-Alonso, A
our authors
Manuel Melle-Franco
Principal Researcheracknowledgements
We are grateful to the Basque Science Foundation for Science (Ikerbasque), POLYMAT, the University of the Basque Country (SGIker), Deutsche Forschungsgemeinschaft (MA 5215/4-1), Gobierno de Espana (Ministerio de Economia y Competitividad, CTQ2015-71936-REDT, CTQ2016-77970-R, and MAT2015-65159-R), Gobierno Vasco (BERC program and PC2015-1-01(06-37)), Diputacion Foral de Guipuzkoa (OF215/2016(ES)), CICECO - Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (FCT ref. UID/CTM/50011/2013), ON2 (NORTE-07-0162-FEDER-000086), and the European Union (ERA-Chemistry, Career Integration Grant No. 618247 and FEDER).