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CH Stretching Excitation in the Early Barrier F + CHD3 Reaction Inhibits CH Bond Cleavage
Zhang, Weiqing1,2; Kawamata, Hiroshi1; Liu, Kopin1; Liu GP(刘国平)
刊名SCIENCE
2009-07-17
DOI10.1126/science.1175018
325期:5938页:303-306
收录类别SCI
文章类型Article
部门归属11
项目归属1102
产权排名2;1
WOS标题词Science & Technology
类目[WOS]Multidisciplinary Sciences
研究领域[WOS]Science & Technology - Other Topics
关键词[WOS]PRODUCT ENERGY-DISTRIBUTION ; REACTION DYNAMICS ; MODE ; SURFACE ; ATOMS ; PAIRS
英文摘要Most studies of the impact of vibrational excitation on molecular reactivity have focused on reactions with a late barrier (that is, a transition state resembling the products). For an early barrier reaction, conventional wisdom predicts that a reactant's vibration should not couple efficiently to the reaction coordinate and thus should have little impact on the outcome. We report here an in-depth experimental study of the reactivity effects exerted by reactant C-H stretching excitation in a prototypical early-barrier reaction, F + CHD3. Rather counterintuitively, we find that the vibration hinders the overall reaction rate, inhibits scission of the excited bond itself (favoring the DF + CHD2 product channel), and influences the coproduct vibrational distribution despite being conserved in the CHD2 product. The results highlight substantial gaps in our predictive framework for state-selective polyatomic reactivity.
语种英语
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WOS记录号WOS:000268036600041
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被引频次:157[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/321008/101773
专题中国科学院大连化学物理研究所
通讯作者Liu GP(刘国平)
作者单位1.Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
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Zhang, Weiqing,Kawamata, Hiroshi,Liu, Kopin,et al. CH Stretching Excitation in the Early Barrier F + CHD3 Reaction Inhibits CH Bond Cleavage[J]. SCIENCE,2009,325(5938):303-306.
APA Zhang, Weiqing,Kawamata, Hiroshi,Liu, Kopin,&刘国平.(2009).CH Stretching Excitation in the Early Barrier F + CHD3 Reaction Inhibits CH Bond Cleavage.SCIENCE,325(5938),303-306.
MLA Zhang, Weiqing,et al."CH Stretching Excitation in the Early Barrier F + CHD3 Reaction Inhibits CH Bond Cleavage".SCIENCE 325.5938(2009):303-306.
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