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题名: High-resolution photofragment translational spectroscopy for the UV photodissociation of C2H5I
作者: Bi WeiBin;  Xu XiLing;  Huang JianGou;  Xiao DaoQing;  Zhu QiHe
关键词: photofragment translational spectroscopy ;  C2H5I ;  photodissociation ;  vibrational state distribution ;  energy partitioning ;  dissociation energy
刊名: SCIENCE IN CHINA SERIES B-CHEMISTRY
发表日期: 2007-08-01
DOI: 10.1007/s11426-007-0071-3
卷: 50, 期:4, 页:476-482
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The photodissociation of ethyl iodide at 279.71, 281.73, 304.02 and 304.67 nm has been studied on our new mini-photofragment translational spectrometer with a total flight path of only 5 cm. Some vibrational peaks are firstly resolved in the TOF spectra of I*(P-2(1/2)) and I(P-2(3/2)) channels. These vibrational peaks are assigned to the excitation states (v(2) = 0, 1, 2,---) of the umbrella mode (v(2), 540 cm(-1)) of the photofragment CA, and the distribution of the vibrational states is obtained. The dissociation energy has been determined to be D-0(C-I)=2.314 +/- 0.03 eV. The energy partitioning of the available energy (E-avl=E-T+E-int = E-T+E-V,E-R) calculated from our experimental data E-int /E-avl = 22.1% at 281.73 nm, 22.4% at 304.02 nm for the I* channel, and E-int /E-avl = 25.2% at 279.71 nm, 25.9% at 304.67 nm for the I channel, seem to be more reliable.
关键词[WOS]: 248 NM ;  ALKYL IODIDES ;  DYNAMICS ;  CF3I ;  ETHYL ;  DISSOCIATION ;  FLUORESCENCE ;  SPECTROMETER ;  IONIZATION ;  PHOTOLYSIS
语种: 英语
WOS记录号: WOS:000248663600004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140395
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

Recommended Citation:
Bi WeiBin,Xu XiLing,Huang JianGou,et al. High-resolution photofragment translational spectroscopy for the UV photodissociation of C2H5I[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2007,50(4):476-482.
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