Tailoring C-6-Substituted Coumarin Scaffolds for Novel Photophysical Properties and Stimuli-Responsive Chromism
| العنوان: | Tailoring C-6-Substituted Coumarin Scaffolds for Novel Photophysical Properties and Stimuli-Responsive Chromism |
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| المؤلفون: | Deng-Gao Chen, Chao-Tsen Chen, Pi-Tai Chou, Yi-Cheng Lan, Ravinder Singh, Chun-Hsiang Wang, Yi-Hung Liu |
| المصدر: | The Journal of Physical Chemistry B. 125:11557-11565 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, Stimuli responsive, Cyclohexane, Solvatochromism, Photochemistry, Coumarin, Surfaces, Coatings and Films, Dipole, chemistry.chemical_compound, Chromism, chemistry, Coumarins, Intramolecular force, Solvents, Materials Chemistry, Physical and Theoretical Chemistry |
| الوصف: | A judicious strategy was utilized to envision the substantial regio-positional effects of substituents on the photophysical properties of the 2H-chromen-2-one-3-benzothiazole scaffold-based push-pull framework, named 6-X-CUMs. Among them, 6-NEt2-CUM reveals prominent excited-state intramolecular charge transfer with a large change of dipole moment (Δμ ∼ 18.23 D), hence displaying remarkable emission solvatochromism from the green (536 nm in cyclohexane) to far-red region (714 nm in dimethyl sulfoxide) and a high-temperature sensitivity (-0.23 nm °C-1). These, together with unique basicity and acido-/vaporchromism upon acidification elucidated by NMR and photospectroscopic studies, show stark contrast to the conventional 7-NEt2-CUM. The new series of these tailored 6-X-CUMs represents a new dimension in tailoring the photophysical properties for the development of a promising class of multistimuli-responsive materials. |
| تدمد: | 1520-5207 1520-6106 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b263a46bfebf1aecc2f57bf50d4a7b57 https://doi.org/10.1021/acs.jpcb.1c08133 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....b263a46bfebf1aecc2f57bf50d4a7b57 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205207 15206106 |
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