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T. Beiderhase, Karlheinz Hoyermann, Walter Hack

Elementary Reaction of CF₂(X^~) with O₃: Primary Products

The reaction of CF₂(X^~) with O₃ has been investigated in a discharge flow reactor at room temperature and low pressure (p = 2.5 mbar). CF₂(X^~) was produced by a microwave discharge of a mixture of CF₂Br₂/He. The reactants and products were detected by mass spectrometers (MS), which were connected to the flow systems via a continuous molecular beam sampling system.
The following primary products were observed (CF₂O₃ (m/z = 98); CF₂O (m/z = 47, 66); O₂ (m/z = 32)). The reaction mechanism:
CF₂ (X^~) + O₃ ↔ CF₂O^#₃ → CF₂O₃
→ CF₂O+O₂ (1)
explains the observed primary products. The molecule with the empirical formula CF₂O₃ has been observed directly by MS; the structure is discussed.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 214, 01/2000
Pages: 095

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