Efficient vibrational relaxation of O2(X 3Σg-, v=8) by collisions with CF4

被引：18
|
作者：
Yamasaki, K
Fujii, H
Watanabe, S
Hatano, T
Tokue, I
机构：
[1] Hiroshima Univ, Grad Sch Sci, Dept Chem, Higashihiroshima, Hiroshima 7398526, Japan
[2] Niigata Univ, Dept Chem, Niigata 9502181, Japan
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2006年 / 8卷 / 16期
关键词：
D O I：
10.1039/b516695k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A laser flash photolysis-laser-induced fluorescence (LIF) technique has been employed to study the relaxation kinetics of vibrationally excited O-2(X (3)Sigma(-)(g)). The time-resolved LIF excited B (3)Sigma(-)(u)-X (3)Sigma(-)(g) system has been recorded and analyzed by the integrated-profiles method. The rate coefficient for vibrational relaxation of O-2(X (3)Sigma(-)(g), nu = 8) by collisions with CF4, [1.4 +/- 0.3(2 sigma)] x 10(-11) cm(3) molecule(-1) s(-1), indicates that CF4 is an efficient relaxant of O-2(X (3)Sigma(-)(g)) and that the propensity rule for O-2 relaxation suggested by Mack et al.
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页码：1936 / 1941
页数：6
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