Dibenzo[f,h]furazano[3,4‑b]quinoxalines: Synthesis by Intramolecular Cyclization through Direct Transition Metal-Free C–H Functionalization and Electrochemical, Photophysical, and Charge Mobility Characterization

Herein, we describe the synthesis of unsymmetrically substituted dibenzo­[f,h]­furazano­[3,4-b]­quinoxalines by intramolecular cyclization through direct transition metal-free C–H functionalization. The electrochemical and photophysical properties for several polycycles have been measured. In thin f...

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Bibliographic Details
Published in:ACS omega 2020-04, Vol.5 (14), p.8200-8210
Main Authors: Kvashnin, Yuriy A, Verbitskiy, Egor V, Eltsov, Oleg S, Slepukhin, Pavel A, Tameev, Alexey R, Nekrasova, Natalia V, Rusinov, Gennady L, Nunzi, Jean-Michel, Chupakhin, Oleg N, Charushin, Valery N
Format: Article
Language:English
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Summary:Herein, we describe the synthesis of unsymmetrically substituted dibenzo­[f,h]­furazano­[3,4-b]­quinoxalines by intramolecular cyclization through direct transition metal-free C–H functionalization. The electrochemical and photophysical properties for several polycycles have been measured. In thin films of the dibenzo­[f,h]­furazano­[3,4-b]­quinoxalines, hole mobility is in the order of 10–4 cm2 V–1 s–1. The results show that the HOMO and LUMO energy levels are appropriate for using the compounds as hole-transport materials in thin-film devices, in particular, organic and perovskite solar cells.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.0c00479