D. A. Pomogailo, I. D. Sorokin, O. I. Gromov, V. I. Pergushov, M. Ya. Melnikov, “Photochemical transformations of exo-2,3-norbornene oxide radical cations in the CF3CCl3 matrix at 77K”, Mendeleev Commun., 31:2 (2021), 154

Communications

Photochemical transformations of exo-2,3-norbornene oxide radical cations in the CF₃CCl₃ matrix at 77K

D. A. Pomogailo^ab, I. D. Sorokin^a, O. I. Gromov^a, V. I. Pergushov^a, M. Ya. Melnikov^a

^a Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
^b Russian Institute for Scientific and Technical Information, Russian Academy of Sciences, Moscow, Russian Federation

Аннотация: The structure and nature of the underlying photochemical transformations of radical cations formed upon irradiation of exo-2,3-norbornene oxide solutions in a CF₃CCl₃ matrix at 77K have been established using electron paramagnetic resonance and UV-visible absorption spectroscopy as well as quantum chemical calculations. For photochemical reactions proceeding in this system, a mechanism has been proposed, which consists in the transformation of the initially formed ring-open radical cation into a ring-closed C-centered radical cation, followed by photoelimination of H₂.

Ключевые слова: exo-2,3-norbornene oxide, radical cations, matrix stabilization, freon matrices, photochemistry, EPR spectroscopy, electronic absorption spectroscopy, quantum chemical calculations.

Язык публикации: английский

DOI: 10.1016/j.mencom.2021.03.003