Design, synthesis, crystal structures, and photophysical properties of tetraphenylethene-based quinoline derivatives

Xiaolin Zhu, Danfeng Wang, Hai Huang, Xueqiong Zhang, Shifan Wang, Rui Liu*, Hongjun Zhu

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    The incorporation of aggregation-induced emission (AIE) luminogens provides a molecule with enhanced fluorescent emission in the solid state. A representative AIEgen compound is tetraphenylethene (TPE). A series of new conjugates of quinolone derivatives with TPE units (1a - 1f) was synthesized and characterized. The influence on the photophysics of 1a - 1e with a variety of functional groups was investigated systematically by spectroscopic methods and simulated by density-functional theory calculations. A centrosymmetric compound donor-acceptor-donor-type compound 1f with two TPE moieties proved to be the most promising multifunctional material, it exhibited tri-colored (489–569 nm) fluorescence characteristics in tetrahydrofuran-H2O solution with a different water fraction and intense tri-colored solvatochromic (blue, green, and yellow) behaviors. These compounds could be applied as promising acid-base gas probe based on their evident color switch. Compounds 1a - 1f showed the advantage of being a potential piezochromic material.

    Original languageEnglish
    Article number107657
    Pages (from-to)1-9
    Number of pages9
    JournalDyes and Pigments
    Volume171
    DOIs
    Publication statusPublished - Dec 2019

    Keywords

    • AIE
    • Luminogens
    • Piezochromic material
    • Quinolone
    • Tetraphenylethene

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