Selective Solid State Photooxidant

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• 作者：Tracy L. Morkin ; Nicholas J. Turro ; Mark H. Kleinman ; Cheyenne S. Brindle ; Wolfgang H. Kramer ; and Ian R. Gould
• 刊名：Journal of the American Chemical Society
• 出版年：2003
• 出版时间：December 3, 2003
• 年：2003
• 卷：125
• 期：48
• 页码：14917 - 14924
• 全文大小：114K
• 年卷期：v.125,no.48(December 3, 2003)
• ISSN：1520-5126

文摘

Irradiation of biphenyl encapsulated in the cavities of a NaZSM-5 zeolite framework has beenreported to result in the formation of an extremely long-lived radical cation. Here, we show that such zeoliteencapsulated radical cations can act as irreversible one-electron oxidants for simple alkenes and dienes,in a solid-state analogue to solution-phase cosensitization. Compared to the well-known semiconductorphotooxidizers, such as titanium dioxide, the NaZSM-5 zeolite-based solid photooxidants exhibit enhancedselectivity based on oxidation potential, molecular size and shape, and Lewis base character.