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| Time-Resolved FTIR Study on the Reaction of CHCl2 with NO2 |
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Kun-hui Liu, Chun-fan Yang, Huan Wang, Wei-qiang Wu, Hong-mei Su *
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State Key Laboratory of Molecular Reaction Dynamics, Beijing National Laboratory for Molecular Sci-
ences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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| Abstract: |
| The environmentally important free radical reaction of chlorinated methyl CHCl2 with NO2
was investigated by step-scan time-resolved FTIR (TR-FTIR) emission spectroscopy. Vibrationally excited products of CHClO, NO, CO, and HCl are observed in the high-resolution IR emission spectra and three possible reaction channels are therefore elucidated. In particular,the product CO is newly detected and the product HCl is identified explicitly as a yield from the CHCl2+NO2 reaction, taking advantage of the sensitive detection of HCl and CO with TR-FTIR. These results are of particular interests to understand the related realistic chemical processes including atmospheric photochemistry, biofuel combustion, waste destruction,and smoking fire. |
| Key words: TR-FTIR, Dichloromethyl, NO2, Reaction product channel |
| FundProject: |
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| Time-Resolved FTIR Study on the Reaction of CHCl2 with NO2 |
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刘坤辉, 杨春帆, 王欢, 吴为强, 苏红梅 *
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中国科学院化学研究所分子反应动力学国家重点实验室，北京100190
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| 摘要: |
| 采用时间分辨傅立叶变换红外发射光谱(TR-FTIR)研究了环境化学中重要的氯代甲基CHCl2和NO2分子的反应. 通
过0.5 cm-1高分辨的TR-FTIR发射光谱观察到四种振动激发态产物CHClO、NO、CO和HCl，进而推测出CHCl2+NO2反应三个相应的产物通道. 其中，CO是CHCl2+NO2反应中首次观测到的产物，而HCl则是明确肯定存在的初级反应产物. |
| 关键词: 时间分辨红外发射光谱，CHCl2，NO2，产物通道 |
| DOI：10.1088/1674-0068/22/02/134-138 |
| 分类号: |