Radical Intermediates in the Photoinduced Formation of Benzene Cation-Radicals over H-ZSM-5 Zeolites

Article abstract of DOI:10.1021/j100082a027

Radical particles are shown to appear under irradiation (h_v >= 2.8 eV) of H-ZSM-5 zeolites with adsorbed benzene.The particles appeared to be benzene cation-radical precursors over the zeolite.Heating resulted in irreversible destruction of the particles and emergence of a benzene cation-radical spectrum.The obtained radicals have no detectable hyperfine splittings on the protons, their spectrum remaining almost the same when deuterobenzene was used.The possible structure of the particles is discussed.