Rate constant of the reaction of NO3 with CH2I2 measured with use of cavity ring-down spectroscopy

被引:13
|
作者
Nakano, Yukio [1 ]
Ukeguchi, Hiromi [1 ]
Ishiwata, Takashi [1 ]
机构
[1] Hiroshima City Univ, Fac Informat Sci, Hiroshima 7313194, Japan
关键词
D O I
10.1016/j.cplett.2006.09.002
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
We have applied cavity ring-down spectroscopy to a kinetic study of the reaction of NO3 with CH2I2 in 25-100 Torr of N-2 diluent at 298 K. The rate constant of reaction of NO3 + CH2I2 is determined to be (4.0 +/- 1.2) x 10(-13) cm(3) molecule(-1) s(-1) in 100 Torr of N-2 diluent at 298 K. The rate constant increases with increasing pressure of buffer gas below 100 Torr. The reaction of CH2I2 with NO3 has the potential importance at nighttime in the atmosphere. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:235 / 239
页数:5
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