Isomerization of olefin radical cations in ZSM-5 zeolites

Journal Article · Thu Oct 06 00:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100091a047· OSTI ID:6922855

Werst, D W; Tartakovsky, E E; Piocos, E A; Trifunac, A D ^[1]

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1. Argonne National Lab., IL (United States)

Variable-temperature EPR was used to investigate reactions of olefin radical cations generated radiolytically in nonacidic and acidic ZSM-5 zeolites. The olefin radical cations undergo isomerization reactions even at 4 K. Radical cation reactions are presumably driven by the exothermicity of charge transfer, which is not efficiently quenched by the vibrational modes of the zeolite lattice. The observation of H-addition type radicals indicates Bronsted acid-catalyzed rearrangements prior to irradiation on the more acidic zeolites. 72 refs., 7 figs., 2 tabs.

• OSTI ID: 6922855
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:40; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
400600 -- Radiation Chemistry
ALKENES
CATALYSIS
CATIONS
CHARGE TRANSPORT
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
COMPILED DATA
DATA
DECOMPOSITION
ELECTRON SPIN RESONANCE
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
ISOMERIZATION
MAGNETIC RESONANCE
MATERIALS
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
RADIATION EFFECTS
RADICALS
RADIOLYSIS
RESONANCE
SILICATE MINERALS
ZEOLITES