期刊
DYES AND PIGMENTS
卷 184, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2020.108851
关键词
beta-Diketones; Binaphthalene; Excited-state intramolecular proton transfer (ESIPT); Chiral recognition
资金
- National Natural Science Foundation of China [21871192, 81771114]
- Sichuan Science and Technology Program [2018JY0559]
The designed simple, smart, and chiral binaphthalene-substituted 4-ene-beta-diketones exhibit high emissive properties and unique chemical reactions, making them suitable for sensing, recognition, and staining cytoplasm in living cells. They provide a new platform for the design of multi-stimuli-responsive, smart, and chiral materials.
A unique series of simple, smart, and chiral binaphthalene-substituted 4-ene-beta-diketones molecules has been designed and prepared. Their optical properties, charge contribution, and transition process highly depend on their chemical structures. These pi-conjugated materials are highly emissive in both solution and solid (emission quantum yield up to 68%), owing to the inhibition of enol-keto tautomerization and the effect of steric hindrance from binaphthalene. Through ethylenic bond hydrolysis, they can be used for not only cation/anion sensing but also chiral amino acids recognition. Moreover, at low concentrations, they have little cytotoxicity to living cells and can stain cytoplasm. Therefore, they afford a new platform in the design of multi-stimuli-responsive, smart, and chiral materials.
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