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题名: Multichannel reaction of C2Cl3+O-2 studied by time-resolved Fourier transform infrared emission spectroscopy
作者: Tiancheng Xiang;  Kunhui Lin;  Shaolei Zhao;  Hongmei Su;  Fanao Kong;  Baoshan Wang
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2007-09-27
DOI: 10.1021/jp074058c
卷: 111, 期:38, 页:9606-9612
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The multichannel reaction of the C2Cl3 radical with O-2 has been studied thoroughly by step-scan time-resolved Fourier transform infrared emission spectroscopy. Vibrationally excited products Of Cl2CO, CO, and CO2 are observed and three major reaction channels forming respectively CICO + Cl2CO, CO + CCl3O, and CO2 + CCl3 are identified. The vibrational state distribution of the product CO is derived from the spectral fitting, and the nascent average vibrational energy of CO is determined to be 59.9 kJ/mol. A surprisal analysis is applied to evaluate the vibrational energy disposal, which reveals that the experimentally measured CO vibrational energy is much more than that predicted by statistical model. Combining previous ab initio calculation results, the nonstatistical dynamics and mechanism are characterized to be barrierless addition-elimination via short-lived reaction intermediates including the peroxy intermediate C2Cl3OO* and a crucial three-member-ring COO intermediate.
关键词[WOS]: MOLECULAR-OXYGEN ;  ENERGY-TRANSFER ;  RADICALS ;  KINETICS ;  O-2 ;  PHOTOLYSIS ;  CO2
语种: 英语
WOS记录号: WOS:000249655600056
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140498
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
2.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

Recommended Citation:
Tiancheng Xiang,Kunhui Lin,Shaolei Zhao,et al. Multichannel reaction of C2Cl3+O-2 studied by time-resolved Fourier transform infrared emission spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2007,111(38):9606-9612.
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