The synthesis of a class of contorted electron-deficient polycyclic aromatic hydrocarbons (PAHs) has been achieved by a one-pot bay annulation of perylene diimide involving a mild Suzuki coupling and subsequent air-mediated, ambient-light-induced photocyclization. X-ray crystallography unambiguously confirmed the contorted PAH structure bearing four imide groups. The photophysical and electronic properties of these contorted PAHs were also analyzed, showing a high fluorescence quantum yield of 86% and moderate electron mobility of 0.017 cm² V^–1 s^–1.

中文翻译：

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通过苝二亚胺的一锅环 π- 延伸的缺电子扭曲多环芳烃

一类扭曲的缺电子多环芳烃 (PAHs) 的合成是通过苝二亚胺的单锅湾环化实现的，涉及温和的 Suzuki 偶联和随后的空气介导、环境光诱导的光环化。X 射线晶体学明确证实了带有四个酰亚胺基团的扭曲 PAH 结构。还分析了这些扭曲的 PAH 的光物理和电子特性，显示出 86% 的高荧光量子产率和 0.017 cm ² V ^–1 s ^–1的中等电子迁移率。