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Experimental Study of C2Cl3+NO2 Reaction
Tian-cheng Xiang,Kun-hui Liu,Hong-mei Su*
Author NameAffiliationE-mail
Tian-cheng Xiang State Key Laboratory of Molecular Reaction Dynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Kun-hui Liu State Key Laboratory of Molecular Reaction Dynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Hong-mei Su* State Key Laboratory of Molecular Reaction Dynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China hongmei@iccas.ac.cn 
Abstract:
The free radical reaction of C2Cl3 with NO2 was investigated by step-scan time-resolved FTIR (TR-FTIR) emission spectroscopy. Due to the vibrationally excited products of Cl2CO, NO, and CO, strong IR emission bands were observed with high resolution TR-FTIR spectra. Four reaction channels forming C2Cl3O+NO, CCl3CO+NO, CO+NO+CCl3, and ClCNO+Cl2CO were elucidated, respectively. Spectralˉtting showed that the product CO was highly vibrationally excited with the nascent average vibrational energy of 60.2 kJ/mol. Possible reaction mechanism via intermediates C2Cl3NO2 and C2Cl3ONO was proposed.
Key words:  TR-FTIR, C2Cl3, Vibrational population, Reaction mechanism
FundProject:中国科学院百人计划;国家自然科学基金
C2Cl3+NO2反应的实验研究
向天成,刘坤辉,苏红梅*
摘要:
利用时间分辨傅立叶变换红外发射光谱(TR-FTIR)研究了C2Cl3自由基和NO2分子的反应.并且通过高分辨的TR-FTIR光谱可观察到三种振动激发态产物,它们分别是Cl2CO、NO和CO.从而确定了四个主要的反应通道,分别为:C2Cl3O+NO、ClCNO+Cl2CO、CO+NO+CCl3和CCl3CO+NO.光谱拟合显示产物CO是高振动激发的,其初生态的平均振动能为60.2 kJ/mol.并推测其可能的反应机理是通过中间体C2Cl3NO2和C2Cl3ONO进行的.
关键词:  时间分辨傅立叶变换红外发射光谱,C2Cl3,振动布居,反应机理
DOI:10.1088/1674-0068/20/04/407-411
分类号: