Fused-aromatic materials have long been attracted and investigated due to the extend conjugation and their graphitic structures for electronic and optical applications. In contrast with pentacene and phenanthrene derivatives, extend benzo[k]tetraphene derivatives have been barely explored. The synthesis of benzo[k]tetraphene-derived well-defined ladder-type p-phenylene oligomers were achieved under thermodynamic control by employing reversible ring-closing olefin metathesis. This unique approach featured mild conditions and excellent efficiency, affording series of fused-aromatic oligomers. Excellent solubility of the synthesized fused-aromatic oligomers by introducing solubilizing groups at the end of the aromatic rings allowed for rigorous solution-based analysis and feasible processing of thin films using solution-casting techniques. Moreover, optical and electronic properties of the fully conjugated fused aromatic systems were analyzed.

Synthesis of well-defined ladder-type oligomeric p-phenylene derivatives via Ring-Closing olefin Metathesis (RCM)

253rd National Meeting (2017)

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