Solution-Processable Dicycloheptatrienerubicenes With Two Trialkylsilylethynyl Groups.

Authors

Liyuan Qin, Qi Liang, Jie Lu, Yanwei Fan, Yizhen Zhang, Yan-Ying Huang, Guangchao Han, Jie Liu, Lang Jiang, Yuanping Yi, Guanxin Zhang, Lizhen Huang, Xi-Sha Zhang, Deqing Zhang

Published in

Chemistry (Weinheim an der Bergstrasse, Germany). Pages e71702. Sep 22, 2026. Epub Sep 22, 2026.

Abstract

Introduction of trialkylsilylethynyl groups to polycyclic aromatic hydrocarbon (PAH) is one effective strategy to improve the solubility and tune the packing modes. Based on our previously reported non-benzenoid PAH, dicycloheptatrienerubicene (DHR), we developed a bromination/borylation/oxidation/ alkynylation sequence to successfully introduce two trialkylsilylethynyl groups to the 2, 2'-positions of it. The resulting DHR derivatives, DHR-TES and DHR-TIPS with triethylsilylethynyl and triisopropylethynyl groups, respectively, can be solution-processable, and their packing modes were tuned to be herringbone and 1D column, respectively. DHR-TES shows higher mobility than DHR-TIPS, reaching 0.012 and 0.094 cm²V^{- 1}s^{- 1}, respectively, for solution-processable thin films and microcrystals of DHR-TES.

PMID:
42773572
Bibliographic data and abstract were imported from PubMed on 23 Sep 2026.

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