Selective solid state photooxidant.

J Am Chem Soc

Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.

Published: December 2003

Irradiation of biphenyl encapsulated in the cavities of a NaZSM-5 zeolite framework has been reported to result in the formation of an extremely long-lived radical cation. Here, we show that such zeolite encapsulated 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 semiconductor photooxidizers, such as titanium dioxide, the NaZSM-5 zeolite-based solid photooxidants exhibit enhanced selectivity based on oxidation potential, molecular size and shape, and Lewis base character.

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http://dx.doi.org/10.1021/ja0368406DOI Listing

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