A mild and effective method to prepare 2,7-dibromo-4,5-diazafluoren-9-one (3) has been described involving tandem oxidation and rearrangement reactions. Diazafluorenone-based donor–acceptor (p–n) molecules via stille coupling reactions exhibit solvent-dependent fluorescence and excellent self-assembly behaviors at the solid–liquid interface according to the characterization of scanning tunneling microscopy (STM).

中文翻译：

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基于二氮杂芴酮的p - n（给体-受体）有机半导体的简便合成和自组装

已经描述了涉及串联氧化和重排反应的制备2,7-二溴-4,5-二氮杂芴-9-一（3）的温和有效的方法。根据扫描隧穿显微镜（STM）的表征，基于二氮杂芴酮的供体-受体（p - n）分子通过静止耦合反应显示出溶剂依赖性荧光，并在固液界面上表现出出色的自组装行为。