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Absolute rate of recombination of CF3 radicals

✍ Scribed by N. Selamoglu; M.J. Rossi; D.M. Golden

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 490 KB
Volume: 124
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)85015-1

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✦ Synopsis

The homogeneous rate of recombination of CFs radicals at 300 K was studied in a very-low-pressure photolysis flow reactor. The radicals were generated from CFsI by either CO, laser (1076 cm-') or excimer laser (248 nm) photolysis. The precursor and product concentrations were followed by mass spectrometry. The recombination rate constant, k,, was measured as (3.0f0.4)x10-'2 cm3 s-'. A hindered Gorin transition-state model predicts that k,/kF is only 0.74 at the effective pressures employed. The model was used to fit these experiments at 300 K, as well as earlier experiments at -1000 K.

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