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学科主题: 物理化学
题名: Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel
作者: Chen, Zhichao1, 2;  Eppink, Andre T. J. B.2;  Jiang, Bo1;  Groenenboom, Gerrit C.3;  Yang, Xueming1;  Parker, David H.2
通讯作者: 杨学明 ;  DavidH.Park
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2011
DOI: 10.1039/c0cp01794a
卷: 13, 期:6, 页:2350-2355
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1102
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
摘要: Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The OH + CH3 product channel for the photodissociation of CH3OH at 157 nm was investigated using the velocity map imaging technique with the detection of CH3 radical products via (2 + 1) resonance-enhanced multiphoton ionization (REMPI). Images were measured for the CH3 formed in the ground and excited states (nu(2) = 0, 1, 2, and 3) of the umbrella vibrational mode and correlated OH vibrational state distributions were also determined. We find that the vibrational distribution of the OH fragment in the OH + CH3 channel is clearly inverted. Anisotropic distributions for the CH3 (nu(2) = 0, 1, 2, and 3) products were also determined, which is indicative of a fast dissociation process for the C-O bond cleavage. A slower CH3 product channel was also observed, that is assigned to a two-step photodissociation process, in which the first step is the production of a CH3O(X E-2) radical via the cleavage of the O-H bond in CH3OH, followed by probe laser photodissociation of the nascent CH3O radicals yielding CH3(X (2)A(1), nu = 0) products.
关键词[WOS]: PHOTOFRAGMENT-TRANSLATIONAL SPECTROSCOPY ;  METHANOL ;  DYNAMICS ;  ENERGY ;  ETHANOL ;  PHOTOCHEMISTRY ;  DISTRIBUTIONS ;  DISSOCIATION ;  FLUORESCENCE ;  SPECTRUM
语种: 英语
WOS记录号: WOS:000286628200053
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115200
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, Peoples R China
2.Univ Nijmegen, Dept Mol & Laser Phys, NL-6525 ED Nijmegen, Netherlands
3.Univ Nijmegen, Inst Theoret Chem, NL-6525 ED Nijmegen, Netherlands

Recommended Citation:
Chen, Zhichao,Eppink, Andre T. J. B.,Jiang, Bo,et al. Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(6):2350-2355.
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