Methyl-restricted rotor rotation on the stator produces high-efficiency fluorescence emission: a new strategy to achieve aggregation-induced emission
| Autor: | Tianqi Hui, Yingying Han, Xinyue Zhou, Xiao-Nan Jiang, Jie Yan, Haicheng Yang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Rotor (electric) Stator General Chemical Engineering Intermolecular force 02 engineering and technology General Chemistry Fluorene 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Suzuki reaction law Intramolecular force 0210 nano-technology Luminescence |
| Zdroj: | RSC Advances. 9:12078-12084 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c9ra01636h |
| Popis: | At present, we have realized that the aggregation-induced emission (AIE) achieves the purpose of fluorescence enhancement by restricting rotations to reduce intermolecular or intramolecular energy loss. Based on this idea, we synthesized a novel fluorene-based fluorescent compound with a restricted rotor rotation on the stator through the Suzuki coupling reaction. The luminescence effect was evaluated by comparing its fluorescence intensity with that of the control compound. Finally, theoretical calculations showed that the presence of methyl groups hindered the thermal rotation of the fluorenyl groups. Thus, the results indicated that the fluorescence of this compound was better than that of the control compound. A new synthetic pathway for high-efficiency AIE-based fluorescent luminogens has been developed. |
| Databáze: | OpenAIRE |
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