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Deprotonation of hydrocarbon radical cations in zeolites

✍ Scribed by D.W. Werst; E.A. Piocos; E.E. Tartakovsky; A.D. Trifunac

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 697 KB
Volume: 229
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01082-x

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✦ Synopsis

Neutral radicals are observed at 77 K following radiolysis of cycloheptatriene and cyclohexane adsorbed on ZSM-5 zeolites. The mechanism of radical formation is assigned to proton transfer from the sorbate radical cations to the zeolite lattice. In the case of cycloheptatriene, the ratio C,H;/C,H,+' increases with the zeolite Al content. Cycloheptatriene adsorbs to at least two types of sites; the more basic sites increase in number as the Al content increases, are lower in energy and are populated first. * Work performed under the auspices of the Office of Basic Energy Sciences, Division of Chemical Science, US-DOE under contract number W-31-109-ENG-38.

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