title: Selective solid state photooxidant.
abstract: 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.
authors.affiliation: Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
authors.forename: Tracy L
authors.initials: TL
authors.lastname: Morkin
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Turro
authors.forename: Mark H
authors.initials: MH
authors.lastname: Kleinman
authors.forename: Cheyenne S
authors.initials: CS
authors.lastname: Brindle
authors.forename: Kirsten
authors.initials: K
authors.lastname: Griffiths
authors.forename: Wolfgang H
authors.initials: WH
authors.lastname: Kramer
authors.forename: Ian R
authors.initials: IR
authors.lastname: Gould