Fast and efficient one-pot ultrasound-mediated synthesis of solid state (full color tunable) fluorescent indolizine derivatives
DYES AND PIGMENTS(2023)
摘要
We report herein an efficient, fast, and sustainable method for the preparation of fluorescent indolizine derivatives under ultrasound (US) irradiation using a one-pot and multicomponent methodology. In solution, the indolizine derivatives present absorption in the UV region and fluorescence emission in the violet-to-blue region with a relatively large Stokes shift. Aggregation-induced enhanced emission (AIEE) was observed in some derivatives by fluorescence studies in water/acetone systems. Regarding this particular property, the substituents showed to play a fundamental role. In the solid state, the derivatives present full-color tunable fluorescence also tailored by the substituents. Theoretical calculations using time-dependent density functional theory were performed to investigate the photophysics of these indolizine derivatives and were able to reproduce with accuracy their more prominent electronic features.
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关键词
One -pot, Multicomponent, AIEE, Indolizines, Solid state emission, Ultrasound
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