Role of Tetrakis(triphenylphosphine)palladium(0) in the Degradation and Optical Properties of Fluorene-Based Compounds
| Autor: | Ping Lu, Linlin Liu, Huiping Wang, Zhiming Wang, Houyu Zhang, Yuguang Ma, Bing Yang, Shi Tang, Zengqi Xie |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
chemistry.chemical_element Conjugated system Fluorene Tetrakis(triphenylphosphine)palladium(0) Photochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Polyfluorene General Energy Suzuki reaction chemistry Fluorenone Physical and Theoretical Chemistry Triphenylphosphine Palladium |
| Zdroj: | The Journal of Physical Chemistry C. 112:10273-10278 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp8010316 |
| Popis: | The stability of fluorene-based compounds and polymers, especially at the bridged C-9 position under photoirradiation and thermal treatment, has widely claimed attention. The emission of fluorenone formed by degradation of the 9-site is regarded as the origin of the low emission band at 2.2−2.3 eV in polyfluorene-based conjugated materials. We have the investigated role of tetrakis(triphenylphosphine)palladium(0), which is a metal catalyst of Suzuki coupling, in the degradation and optical properties of fluorene-based compounds. The results show that it can effectively catalyze the formation of fluorenone and quench the emission of polyfluorene and fluorenone. |
| Databáze: | OpenAIRE |
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