Rate of reaction of hydroxyl with carbon disulfide
Rate of reaction of hydroxyl with carbon disulfide
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羟基与二硫化碳的反应速率
DOI：
10.1021/j100457a003
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
A. Ravishankara
中科院分区：
文献类型：
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作者：
P. Wine;R. C. Shah;A. Ravishankara
闪光光解-共振荧光技术已用于研究 OH + CS/sub 2/ ..-->.. 产物 (k/sub 1/) 在 251-363 K 温度范围内的反应动力学。只有当闪光经过 10 torr cm 的 CS/sub 2/ 过滤并使用 SF/sub 6/ 作为缓冲气体时，才消除涉及 CS/sub 2/ 光碎片的复杂二次反应。发现速率常数比之前的测量值慢得多。根据我们的实验，k/sub 1/（单位为 10/sup -15/ cm/sup 3/ molecular/sup -1/s/sup -1/）的上限在 251 K 时为 9.9，在 297 K 时为 1.5，在 363 K 时为 1.6。我们的结果表明，标题反应作为大气中 COS 的来源并不重要。
The flash photolysis-resonance fluorescence technique has been employed to study the kinetics of the reaction OH + CS/sub 2/ ..-->.. products (k/sub 1/) over the temperature range 251-363 K. Complicating secondary reactions involving CS/sub 2/ photofragments were eliminated only when the photoflash was filtered by 10 torr cm of CS/sub 2/ and SF/sub 6/ was used as the buffer gas. The rate constant was found to be much slower than previous measurements indicated. Based on our experiments, upper limits for k/sub 1/ (in units of 10/sup -15/ cm/sup 3/ molecule/sup -1/s/sup -1/) are 9.9 at 251 K, 1.5 at 297 K, and 1.6 at 363 K. Our results suggest that the title reaction is unimportant as a source for COS in the atmosphere.