Xie G, Hauschild M, Hoffmann H, Ahrens L, Rominger F, Borkowski M, Marszalek T, Freudenberg J, Kivala M, Bunz UHF. 5,7,12,14-Tetrafunctionalized 6,13-Diazapentacenes.
Chemistry 2020;
26:799-803. [PMID:
31609025 PMCID:
PMC7004126 DOI:
10.1002/chem.201904516]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Indexed: 11/09/2022]
Abstract
The synthesis, property evaluation, and single crystal X-ray structures of four 5,7,12,14-tetrafunctionalized diazapentacenes are presented. The synthesis of these compounds either starts from tetrabromo-N,N-dihydrodiazapentacene or from a diazapentacene tetraketone. Pd-catalyzed coupling or addition of a lithium acetylide gave the precursors that furnish, after further redox reactions, the diazapentacenes as stable crystalline materials. The performance of the tetraphenyl-substituted compound as n-channel semiconductor was evaluated in organic field effect transistors.
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