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High-resolution photofragment translational spectroscopy for the UV photodissociation of C2H5I
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
2007-08-01
DOI10.1007/s11426-007-0071-3
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
关键词[WOS]248 NM ; ALKYL IODIDES ; DYNAMICS ; CF3I ; ETHYL ; DISSOCIATION ; FLUORESCENCE ; SPECTROMETER ; IONIZATION ; PHOTOLYSIS
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.
语种英语
WOS记录号WOS:000248663600004
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140395
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
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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.
APA Bi WeiBin,Xu XiLing,Huang JianGou,Xiao DaoQing,&Zhu QiHe.(2007).High-resolution photofragment translational spectroscopy for the UV photodissociation of C2H5I.SCIENCE IN CHINA SERIES B-CHEMISTRY,50(4),476-482.
MLA Bi WeiBin,et al."High-resolution photofragment translational spectroscopy for the UV photodissociation of C2H5I".SCIENCE IN CHINA SERIES B-CHEMISTRY 50.4(2007):476-482.
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