Fuqing Yu, Qiuming Yan, Kangli Liang
May 1, 2021
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Influential Citations
5
Citations
Journal
Journal of Luminescence
Abstract
Abstract By incorporating cis-3,5-dimethylpiperidine here we synthesized two simple asymmetrical squaraine dyes (SQ1-2), both exhibiting solution emission and crystalline-induced emission (CIE) behavior with the quantum yield (ΦPL) up to 0.36 at 541 nm and 0.48 at 579 nm in the solid state, respectively. The efficient emission in crystalline state was resulted from twisty 3,5-dimethylpiperidine which resisted intermolecular π-π stacking, while their marked intramolecular charge transfer (ICT) effect resulted into moderate emission and solvatofluorochromism behaviors.