Aggregation-induced emission in fluorophores containing a hydrazone structure and a central sulfone: restricted molecular rotation
| Autor: | Zhongqing Cheng, Liqun Xie, Wen Yang, Jing Li, Mengying Li, Youyong Li, Chunchun Li, Weiqun Zhou |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Chemistry Hydrogen bond General Chemical Engineering Intermolecular force Stacking Hydrazone 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences Intramolecular force Fluorescence microscope Molecule 0210 nano-technology |
| Zdroj: | RSC Advances. 6:35833-35841 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c6ra02209j |
| Popis: | Four D–π–A–π–D structured 4,4′-di(E)-2-(4-4-alkoxyaniline)hydrazinyldiphenyl sulfones were synthesized and their structures were characterized using NMR, IR, and element analysis. These compounds displayed weak fluorescence emission in THF while their fluorescence was enhanced in a THF/water mixture solvent. Fluorescence microscope imaging showed the formation of the aggregate state. The mechanism of aggregation-induced emission (AIE) was supported by molecular dynamics calculations. The intermolecular hydrogen bonds between adjacent molecules inhibited the intramolecular rotations, preventing π–π stacking and causing AIE enhancement. Living cell imaging experiments opened up a new method for cell fluorescence staining. |
| Databáze: | OpenAIRE |
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