Binaphthanol-based organic fluorophores with color tunability and their optical properties
| Autor: | Wei Liu, Kun-Peng Wang, Li-Hua Gan, Zhi-Qiang Hu, Wenxuan Zhang, Shaojin Chen, Zhaohai Ge |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Intermolecular force Solvatochromism Stacking 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences Moiety Molecule General Materials Science 0210 nano-technology Luminescence Single crystal |
| Zdroj: | CrystEngComm. 21:2809-2817 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c9ce00170k |
| Popis: | Luminescent organic materials with tunable emission color have attracted much attention for their potential application in multiple fields. Herein, we designed and synthesized a series of dimethylamine substituted binaphthanol based organic fluorophores. Decorating with substituents at the alkene moiety on the binaphthanol core backbone led to organic solid emitters with color tunability from the blue to red regions. These fluorophores exhibited solvatochromic properties and two compounds (DB-4 and DB-5) showed aggregation-induced emission properties. The binaphthanol core structure induced a twisted molecular conformation and special intermolecular packing mode in a single crystal structure, which was beneficial for the inhibition of the strong intermolecular π–π stacking interaction and induced the AIE feature as well as the fluorescence emission in the solid state. The absorption and emission changes of these molecules under acidic and basic conditions revealed that they had acidochromic properties and could be used as security ink. This work provided a new strategy for the synthesis of organic solid emitters with tunable emissions based on the simple binaphthanol core backbone. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|