Role of Tetrakis(triphenylphosphine)palladium(0) in the Degradation and Optical Properties of Fluorene-Based Compounds
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- 作者：Linlin Liu ; Bing Yang ; Houyu Zhang ; Shi Tang ; Zengqi Xie ; Huiping Wang ; Zhiming Wang ; Ping Lu ; Yuguang Ma
- 刊名：Journal of Physical Chemistry C
- 出版年：2008
- 出版时间：July 10, 2008
- 年：2008
- 卷：112
- 期：27
- 页码：10273 - 10278
- 全文大小：1089K
- 年卷期：v.112,no.27(July 10, 2008)
- ISSN：1932-7455
文摘
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.