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Absolute rate constants for the reactions of O(3P) atoms and OH radicals with SiH4 over the temperature range of 297–438°K

✍ Scribed by R. Atkinson; J. N. Pitts Jr.

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
444 KB
Volume
10
Category
Article
ISSN
0538-8066

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✦ Synopsis

Absolute rate constants for the reaction of SiH4 with O(3P) atoms and OH radicals have been determined over the temperature range 297"438'K using flash photolysis-NO:! chemiluminescence and flash photolysis-resonance fluorescence techniques, respectively. The Arrhenius expressions obtained are

where the error limits in the Arrhenius activation energies are the estimated overall error limits.

Rate data for the reactions of SiH4, CHI, and H2S with O(3P), H, and F atoms and with OH, CH3, and CF3 radicals are compared, showing that H2S and SiH4, which have similar bond energies, have reasonably similar reactivities toward these atoms and radicals.

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