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题名: Multiphoton ionization/dissociation dynamics of formyl fluoride by velocity mapping ion imaging
作者: Wang, Fengyan1;  Zhang, Yongwei1;  Wang, Hua1;  Liu, Jie1;  Jiang, Bo1;  Wang, Xiuyan1;  Yang, Xueming1
通讯作者: 杨学明
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2009
DOI: 10.1039/b903688a
卷: 11, 期:39, 页:8733-8740
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
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The dissociation dynamics of HFCO(+) ion has been studied using the velocity map ion imaging technique. The HFCO(+) ion is prepared by one-photon resonant three-photon ionization in the region of 43100-43860 cm(-1) excitation energy. The HFCO(+) ions, produced by multiphoton ionization, have sufficient internal energy to dissociate into the F and HCO(+) fragments without further absorption of another photon. Images of HCO(+) have been recorded at various excitation energies. It is noticed that the angular distributions of HCO(+) change dramatically from parallel distribution to perpendicular distribution and then back to parallel distribution in a very narrow excitation energy region of 43 473-43 500 cm(-1). Analysis of anisotropy parameters of beta(n) (n = 2, 4 and 6) reveals that the electronic states in the three-photon excitation of HFCO are mainly: HFCO(X'A') -> HFCO(A(1)A '') -> HFCO(A') - HFCO(+)(A(2)A '';B(2)A'). The purely perpendicular resonant transitions are likely responsible for the perpendicular angular distribution of the HCO(+) ion fragment.
关键词[WOS]: MOLECULAR-OXYGEN ;  GAS-PHASE ;  PHOTOELECTRON ;  SPECTRUM ;  STATE ;  HFCO ;  EXISTENCE ;  NM ;  CO
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000270319600010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101867
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

Recommended Citation:
Wang, Fengyan,Zhang, Yongwei,Wang, Hua,et al. Multiphoton ionization/dissociation dynamics of formyl fluoride by velocity mapping ion imaging[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2009,11(39):8733-8740.
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