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Gas-phase atom—radical kinetics of N and O atom reactions with CF and CF 2 radicals

✍ Scribed by Cheng-ping Tsai; David L. McFadden

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
371 KB
Volume
173
Category
Article
ISSN
0009-2614

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✦ Synopsis

Rate constants for the reactions of N and 0 with CF and CF2 radicals have been measured in a gas-flow system with photoionization mass spectrometry detection. CF( % 211,,2,,,2) and CF,(% 'A, ) radicals were produced in a radiofrequency discbarge of CFBr3 and CF2Br?, respectively. Atomic reactants were produced from the corresponding elemental gases in a microwave discharge. The pressure was I .7 Ton: The rate constants for fluorocarbon radical decay under pseudo-first-order conditions at 293 Kinunitsofcmgmolecule-'s-'are (3.4f0.5)XlO-"forCF+N; (7.2fl.O)XlO-'*forCF,+N, (1.2f0.2)XlO-"forCF+O; and (2.0k0.4) x lo-" for CFZ+O.

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