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The production and subsequent relaxation of vibrationally excited OH in the reaction of atomic oxygen with HBr

✍ Scribed by John E. Spencer; G. P. Glass

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
671 KB
Volume
9
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

A fast discharge flow apparatus equipped for EPR detection of radicals has been used to investigate the reaction O + HBr β†’ OH + Br. At 295Β°K, measurements showed that more than 97% of all OH produced in this reaction was formed initially in its first vibrationally excited state. Rate constants for physical deactivation of OH(v = 1) by O(^3^P), Br(^2^P~3/2~), H~2~O, and HBr were measured as (1.45 Β± 0.25) Γ— 10^βˆ’10^, (6.4 Β± 2.4) Γ— 10^βˆ’11^, (1.35 Β± 0.50) Γ— 10^βˆ’11^, and < 10^βˆ’12^ cm^3^/molecΒ·sec, respectively.

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