Theobromine and direct arylation: a sustainable and scalable solution to minimize aggregation caused quenching
| Autor: | Yun Liu, Yunping Huang, Parker J. W. Sommerville, Christine K. Luscombe, David S. Ginger, Werner Kaminsky |
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| Rok vydání: | 2019 |
| Předmět: |
Amplified spontaneous emission
Quenching (fluorescence) Photoluminescence Materials science 010405 organic chemistry Alkylation Dihedral angle 010402 general chemistry Photochemistry Laser 01 natural sciences Pollution 0104 chemical sciences law.invention law medicine Environmental Chemistry Molecule Theobromine medicine.drug |
| Zdroj: | Green Chemistry. 21:6600-6605 |
| ISSN: | 1463-9270 1463-9262 |
| DOI: | 10.1039/c9gc03391b |
| Popis: | A green and scalable method to synthesize organic luminophores with minimal aggregation caused quenching (ACQ) is reported where direct arylation is used to attach alkylated theobromine moieties onto luminophores. The resulting compounds demonstrated high photoluminescence quantum yields (PLQYs) in solution and as aggregates. The minimized ACQ can be ascribed to the large dihedral angles that theobromine moieties introduce into these molecules, preventing π–π interactions between the luminophores. Furthermore, the large dihedral angles promote the formation of hybridized local and charge-transfer states in these molecules. Finally, amplified spontaneous emission measurements were performed to explore their potential in lasers. |
| Databáze: | OpenAIRE |
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