N-Substitution of acridone with electron-donating groups: crystal packing, intramolecular charge transfer and tuneable aggregation induced emission

摘要: Acridone derivatives with electron-rich triphenylamine functionalized at the amino position were synthesized and their properties experimentally computationally investigated. The single crystal structure analysis revealed that π–π interaction of acridone formation hydrogen bonds carbonyl atoms pending phenyl ring crucial in determination molecular packing crystalline state. An intramolecular charge transfer (ICT) process was observed between even reduced conjugation by nitrogen atom acridone. Tuneable aggregation induced emissions blue green fluorescence found due to different state particle size, which varied according water content THF. Furthermore, size spacer appended amine also important adjusting property emission or caused quenching solid