氧分子的三个电子激发的Herzberg态(A3∑+u,c1∑-u,A'3△u)在地球上层大气低温条件下的光化学动力学行为的实验研究为上层大气模型的建立提供重要的理论基础。本文介绍利用流动余辉技术和激光技术测量A3∑+u和c1∑-u态与大气分子碰撞反应速率常数的实验和结果,分析和讨论A3∑+u和c1∑-u态的高振动能级和低振动能级碰撞失活速率常数的巨大差别,并结合前人分析的结果提出自己的看法。最后,展望了实验研究上层大气中Herzberg态动力学行为的前景。
The experimental study of the kinetic behavior of the three electronic-excited Herzberg states of O2(A3Σu+,c1Σu- and A'3△u) in the earth's upper atmosphere provides important basis for the modeling of the upper atmosphere. In this paper, we introduce the experiments, in which using the flowing afterglow and laser techniques, they measured the rate constants of the collisional reactions of O2(A3Σu+, c1Σu-) with atmospheric molecules. The great difference in the quenching rate constants between the high and low vibrational levels of O2(A3Σu+, c1Σu-) is also discussed. We also present our views on this problem. In the end, we introduce the prospects of the experimental study of the kinetic behavior of the Herzberg states of O2.
参考文献
[1] | Slanger T G. Metastable oxygen emission band [J]. Science., 1978, 202:751 |
[2] | Young R A, Sharpless R L. Chemiluminescent reactions involving atomic oxygen and nitrogen [J]. J. Chem. Phys.,1963, 39:1071 |
[3] | Mcneal R J, Durana S C. Absolute chemiluminescent reaction rates for emission of the O2 herzberg bands in oxygen and oxygen-inert-gas afterglow [J]. J. Chem. Phys., 1969, 51:2955 |
[4] | Kenner R D, Ogryzlo E A. Deactivation of O2(A3∑+u) by O2, O and Ar [J]. Int. J. Chem. Kinet., 1980, 12:501 |
[5] | Kenner R D, Ogryzlo E A. Quenching of O2(c1 ∑u-)v = 0 by O(3P), O2(α1 △g) and other gases [J]. Can. J. Chem.,1983, 61:921 |
[6] | Slanger T G, Huestis D L. O2(c1 ∑-u → X3∑-g) emission in the terrestrial nightglow [J]. J. Geophys. Res., 1981,86:3551 |
[7] | Slanger T G, Bischel W K, Dyer M J. Photoexcitation of O2 at 249.3 nm [J]. Chem. Phys. Letters., 1984, 108:472 |
[8] | Wildt J et al. Laser excitation of the A3∑u+,c1∑u-, and A'3 △u states of molecular oxygen [J]. Chem. Phys.,1991,156:497 |
[9] | Copeland R A et al. Collisional removal of O2(c1∑u-;v = 9) by O2, N2 and He [J]. J. Chem. Phys., 1996, 105:10349 |
[10] | Karen Knutsen et al. Laser double-resonance study of the collisional removal of O2(A3∑u+, v = 6, 7, and 9) with O2, N2, CO2, Ar and He [J]. J. Chem. Phys., 1994, 101:7415 |
[11] | Hwang E S, Copeland R A. Temperature dependence of the collisional removal of O2(A3∑u+, v = 9) with O2 and N2 [J]. Geophys. Res. Letters., 1997, 24:643 |
[12] | Piper L G et al. The excitation of IF(B3П0+) by N2(A3∑u+) [J]. J. Chem. Phys., 1985, 82:2321 |
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