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题名: Resolved (v(1), v(2)=1) Combination Vibrational States of CF3 Fragments in the Photofragment Translational Spectra of CF3I
作者: Lin, Dan1, 3;  Hu, Lili2;  Liu, Sheng1, 3;  Qi, Wenke1, 3;  Cheng, Min1, 4;  Du, Yikui1;  Zhu, Qihe1
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2016-12-15
DOI: 10.1021/acs.jpca.6b06988
卷: 120, 期:49, 页:9682-9689
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 photodissociation of CF3I CF3(v(1),v(2)) + I*/I has been investigated at 248, 266, and 277 nm with our high resolution mini-TOF photofragment translational spectrometer. Based on the theoretical calculations of Clary and of Bowman et al., now in this manuscript, we assign 701 cm(-1) to the CF symmetric stretch (breathing) v(1) mode, and 1086 cm(-1) to the umbrella v(2) mode of the CF3 fragment. In the obtained TOF spectra of I+ from the I* channel, situated in the 701 cm(-1) gaps between the original series of (v(1), 0) vibrational peaks, a new series of weaker (v(1), 1) vibrational peaks are partially resolved. These observed new peaks with 1086 cm(-1) v(2) mode excitation have never been reported in previous literature. In the TOF spectra of I+ from the I channel, the new series of (v(1), 1) peaks are also partially resolved. However, these spectra of I channel are less satisfactory, because for higher 4,1 and higher ET, the higher resolution of PTS is required. The potential energy at the curve crossing point and the excitation of CF3 (v(1), 2) and (v(1), 3)-vibrational states have been also analyzed.
关键词[WOS]: MAGNETIC CIRCULAR-DICHROISM ;  248 NM ;  RECOIL ANISOTROPY ;  ALKYL IODIDES ;  A-BAND ;  REFLECTION PRINCIPLE ;  TRIATOMIC-MOLECULES ;  ENERGY DEPENDENCE ;  PHOTODISSOCIATION ;  SPECTROSCOPY
语种: 英语
WOS记录号: WOS:000390072600002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150510
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, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Inst Chem, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Chem, State Key Lab Mol React, Zhongguancun North First St 2, Beijing 100190, Peoples R China

Recommended Citation:
Lin, Dan,Hu, Lili,Liu, Sheng,et al. Resolved (v(1), v(2)=1) Combination Vibrational States of CF3 Fragments in the Photofragment Translational Spectra of CF3I[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2016,120(49):9682-9689.
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