Diindole-Annulated Naphthalene Diimides: Synthesis and Optical and Electronic Properties of Syn- and Anti-Isomers
摘要:
Here we report a selective method for the core-extension of naphthalene diimide (NDI) with two annulated indole rings leading to carbazolo[2,3-b]carbazole diimides (CbDIs) with exclusive syn-connectivity based on a regioselective nucleophilic substitution reaction of Br-4-NDI with arylamines, followed by palladium-catalyzed intramolecular C-C coupling. The oxygen analogues of anti-CbDIs, namely anti-benzofurobenzofuran diimides (anti-BfDIs), were obtained from 2,6-Br-2-NDI and 2-bromophenol. The syn- and anti-isomers of CbDIs were unambiguously characterized by single-crystal X-ray analysis. The optical properties of the present core-enlarged NDIs were studied, revealing clear differences in the absorption characteristics of the syn- and anti-isomers of CbDI, on one hand, and CbDI vs BfDI derivatives, on the other hand. Cyclic voltammetry studies showed that the redox properties are dependent on the substituents at the CbDI-core and oxygen atom containing BfDIs are more prone to reduction than the respective nitrogen analogues CbDIs. Vacuum-processed organic field effect transistors reveal CbDI and BfDI derivatives with n-channel, p-channel, as well as ambient transport characteristics with mobility values up to 0.2 cm(2)/(V s).
CARBAZOLOCARBAZOL-BIS(DICARBOXIMIDES) AND THEIR USE AS SEMICONDUCTORS
申请人:BASF SE
公开号:EP2742112B1
公开(公告)日:2016-05-18
US9583719B2
申请人:——
公开号:US9583719B2
公开(公告)日:2017-02-28
[EN] CARBAZOLOCARBAZOL-BIS(DICARBOXIMIDES) AND THEIR USE AS SEMICONDUCTORS<br/>[FR] CARBAZOLOCARBAZOL-BIS(DICARBOXIMIDES) ET LEUR UTILISATION EN TANT QUE SEMI-CONDUCTEURS
申请人:BASF SE
公开号:WO2013024409A1
公开(公告)日:2013-02-21
The present invention relates to carbazolocarbazol-bis(dicarboximides), a method for their preparation and their use as semiconductors, in particular as semiconductors in organic electronics and organic photovoltaics.