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题名: Product Vibrational State-to-State Correlation in the F + SiH4 -> HF(nu(HF)) + SiH3 (0 nu(2)0) Reaction: A Crossed Molecular Beam Ion-Imaging Study
作者: Zhang, Weiqing1;  Wu, Guorong1;  Pan, Huilin1;  Shuai, Quan1;  Jiang, Bo1;  Dai, Dongxu1;  Yang, Xueming1
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2009-04-23
DOI: 10.1021/jp8114429
卷: 113, 期:16, 页:4652-4657
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 dynamics of the F + SiH4 -> HF + SiH3 reaction has been studied using the crossed molecular beam technique with slice imaging at collision energies from 1.25 to 8.17 kcal/mol. The product silyl radical, SiH3(nu(2) = 0-5), was detected using the (2 + 1) resonance enhanced multiphoton ionization technique. The product velocity distributions and angular distributions of this reaction were obtained from the recorded images. Experimental results show that the silyl radical product is mainly forward scattered relative to the silane beam direction, and the majority of the available energy was partitioned into the vibration of the HF product. The state-to-state correlation between the two reaction products, SiH3 and HF, was also determined. In addition, we found that the reaction cross section goes down as the collision energy increases. From these results, we conclude that the F + SiH4 -> HF + SiH3 reaction proceeds through a direct abstraction mechanism with little or no reaction barrier.
关键词[WOS]: CROSSED MOLECULAR-BEAM ;  F+CD4 REACTION ;  ATOM REACTION ;  DYNAMICS ;  RESONANCES ;  SCATTERING ;  SECTION
语种: 英语
WOS记录号: WOS:000265383200114
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141595
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:
Zhang, Weiqing,Wu, Guorong,Pan, Huilin,et al. Product Vibrational State-to-State Correlation in the F + SiH4 -> HF(nu(HF)) + SiH3 (0 nu(2)0) Reaction: A Crossed Molecular Beam Ion-Imaging Study[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2009,113(16):4652-4657.
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