Substituent-induced modulation of proaromaticity in benzo-fused fluorenophenalene exhibiting low-lying LUMO

Key Points

• The study aims to explore how different substituents influence the proaromatic properties of benzo-fused fluorenophenalene.
• Synthesis of various benzo-fused fluorenophenalenes with different aryl substituents.
• Characterization of the electronic properties of the compounds produced.
• Analysis of the low-lying LUMO levels to assess proaromaticity.
• Synthesis successfully yielded multiple benzo-fused fluorenophenalenes with varied substituents.
• The presence of different aryl groups significantly altered the proaromatic characteristics.
• A notable correlation was found between substituent electronic character and the LUMO energy levels.