Abstract

Partially fluorinated hydrocarbons, ethers and alcohols are discussed as substitutes of HCFC in the context of air pollution, thus motivating kinetic studies of the involved radicals for the incorporation of these elementary reactions in the reaction networks of air chemistry. The present study reports on the formation of radicals by the reactions of atomic fluorine with partially halogenated methanes, alcohols and ethers and their reactions with atomic oxygen, molecular oxygen and nitrous oxide. Moreover, the unimolecular reactions of 1-ethinyl-1-methylcyclopropane induced by thermal and chemical activation have been investigated in the gas phase.The experiments were performed using the conventional discharge flow reactor and the laser flash photolysis technique combined with molecular beam sampling and the analytic tools as mass spectrometry with electron impact and laser induced multiphoton ionization (EI-MS, REMPI-TOF-MS), gaschromatography (GC-MS) and infrared spectroscopy (FT-IR).

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