期刊
MOLECULAR SYSTEMS DESIGN & ENGINEERING
卷 -, 期 -, 页码 -出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3me00093a
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Hydrazone photoswitching functionalities integrated with three different fluorophore units (perylene (PY-PH), tetraphenylethylene (TPE-PH) and triphenylamine (TPA-PH)) were synthesized and demonstrated fluorophore unit dependent fluorescence photoswitching and mechanofluorochromism. The structural impact on the fluorescence photoswitching and mechanofluorochromism was explored, which could be useful for developing new photofluorochromic/mechanofluorochromic smart materials for multifunctional applications.
Hydrazone photoswitching functionalities integrated with three different fluorophore units (perylene (PY-PH), tetraphenylethylene (TPE-PH) and triphenylamine (TPA-PH)) were synthesized and demonstrated fluorophore unit dependent fluorescence photoswitching and mechanofluorochromism. TPE-PH and TPA-PH exhibited reversible off-on and dual-state fluorescence photoswitching, respectively, due to conformational changes upon light irradiation. In contrast, PY-PH showed irreversible photoswitching. Further, TPA-PH displayed fluorescence switching between two fluorescence states whereas TPE-PH showed off-on switching upon crushing and heating. PY-PH did not show clear mechanofluorochromism. Thus, the present work explored the structural impact on the fluorescence photoswitching and mechanofluorochromism that might be useful for developing new photofluorochromic/mechanofluorochromic smart materials for multifunctional applications.
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