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题名: Imaging the O(D-1)+CD4 -> OD+CD3 Reaction Dynamics: The Threshold of Abstraction Pathway
作者: Shuai, Quan1;  Pan, Huilin1;  Yang, Jiayue1;  Zhang, Dong1;  Jiang, Bo1;  Dai, Dongxu1;  Yang, Xueming1
刊名: JOURNAL OF PHYSICAL CHEMISTRY LETTERS
发表日期: 2012-05-17
DOI: 10.1021/jz300453f
卷: 3, 期:10, 页:1310-1314
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: The O(D-1) + CD4 -> OD + CD3 reaction was investigated using the crossed molecular beam technique with sliced velocity map imaging at four different collision energies: 1.6, 2.8, 4.6, and 6.8 kcal/mol. The vibrational ground state product CD3 was detected using a (2 + 1) resonance-enhanced multiphoton ionization (REMPI). Remarkably different features were found in the forward and backward scatterings, and gradually changed with the collision energy. These features were attributed to two distinctive reaction mechanisms-insertion and abstraction-that occur on the ground and excited state surfaces, respectively. Contributions from the two mechanisms were extracted from the experiment results, and a positive correlation was found between the abstraction proportion and the collision energy. The threshold for the abstraction pathway was determined and compared with results from calculations.
关键词[WOS]: LASER-INDUCED FLUORESCENCE ;  CROSSED MOLECULAR-BEAM ;  (2)PI)+CH3(X (2)A(2)'') REACTION ;  POTENTIAL-ENERGY SURFACE ;  PRODUCT PAIR CORRELATION ;  COLLISION ENERGY ;  AB-INITIO ;  O((1)D)+CH4 REACTION ;  STATE-CORRELATION ;  F+CD4 REACTION
语种: 英语
WOS记录号: WOS:000304073800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142851
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, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Shuai, Quan,Pan, Huilin,Yang, Jiayue,et al. Imaging the O(D-1)+CD4 -> OD+CD3 Reaction Dynamics: The Threshold of Abstraction Pathway[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2012,3(10):1310-1314.
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