Rate constants for atomic hydrogen + oxygen + M at 298 K for M = helium, nitrogen, and water
Rate constants for atomic hydrogen + oxygen + M at 298 K for M = helium, nitrogen, and water
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298 K 时原子氢氧 M 的速率常数（M = 氦、氮和水）
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
F. Kaufman
中科院分区：
文献类型：
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作者：
K. Hsu;J. L. Durant;F. Kaufman
采用放电-流动法测定了室温下三体复合反应H + O/sub - 2/ + M （M = He, N/sub - 2/, H/sub - 2/O）的速率常数为4.79 ~ 30.1 Torr。得到的速率常数分别为（2.6 +/- 0.2）× 10/sup -32/、（6.1 +/- 0.9）× 10/sup -32/和（6.4 +/- 0.8）× 10/sup -31/ cm/sup 6/ s/sup -1/。虽然he和N/sub 2/的速率可以根据现有理论进行合理化，但H/sub 2/O的速率意味着碰撞效率大于1。这种情况可以通过使用全量子力学散射截面而不是常用的Lennard-Jones截面来纠正。
The rate constants of the three-body recombination reaction H + O/sub 2/ + M (M = He, N/sub 2/, H/sub 2/O) were measured from 4.79 to 30.1 Torr at room temperature by the discharge-flow technique. The respective rate constants obtained are (2.6 +/- 0.2) x 10/sup -32/, (6.1 +/- 0.9) x 10/sup -32/, and (6.4 +/- 0.8) x 10/sup -31/ cm/sup 6/ s/sup -1/. Although the rates for he and N/sub 2/ can be rationalized in terms of existing theory, that for H/sub 2/O implies a collision efficiency greater than 1. This situation can be rectified by use of the total quantum mechanical scattering cross section instead of the Lennard-Jones cross section commonly used.