Side-chain engineering of 4-aryl-1,8-naphthalimides: Fine-tuning for mechnochromic and vapochromic response in dual-state emission mode

Four 4-aryl-1,8-naphthalimides (NAPTPA1∼4) were designed and synthesized for tuning emissive properties via adjusting the flexibility of the side chains. This strategy can easily turn their emission bands covering a wide gamut (450∼800 nm) with middle to strong fluorescence quantum yields (FQYs). NA...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2025-02, Vol.459, p.116002, Article 116002
Main Authors: Lv, Xinyu, Luo, Xin, Bao, Ying, Qu, Yi, Zhang, Xiao, Liu, Feiying, Sun, Jiaojiao
Format: Article
Language:English
Subjects:
4-Arylnaphthalimide
Aggregation induced emission enhancement
Mechanochromic luminogen
Stimuli-responsive
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Summary:Four 4-aryl-1,8-naphthalimides (NAPTPA1∼4) were designed and synthesized for tuning emissive properties via adjusting the flexibility of the side chains. This strategy can easily turn their emission bands covering a wide gamut (450∼800 nm) with middle to strong fluorescence quantum yields (FQYs). NAPTPA1 exhibits the highest FQYs (92.2% in self-assembly state and 59.2% in amorphous state) and the largest emission movement (50 nm) in both self-assembly and amorphous states. Thus, NAPTPA1 can be used as stimuli-responsive materials for monitoring VOCs. [Display omitted] •Four naphthalimide-based molecular actuators with tuning flexible chains were synthesized.•All derivatives exhibit higher quantum yield (23.9 %∼92.2 %) than their precursor (
ISSN:1010-6030
DOI:10.1016/j.jphotochem.2024.116002