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题名: Fragmentation of dimethyl ether in femtosecond intense field
作者: Zhu, Jingyi;  Guo, Wei;  Wang, Yanqiu;  Wang, Li
通讯作者: 王利
关键词: fragmentation ;  dimethyl ether ;  femtosecond intense field
刊名: CHEMICAL PHYSICS
发表日期: 2006-08-01
DOI: 10.1016/j.chemphys.2006.03.020
卷: 326, 期:2-3, 页:571-576
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1101
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 fragmentation of dimethyl ether (DME) in intense femtosecond laser field has been studied at 810, 405 and 270 nm with intensities up to 2.48 x 10(15), 3.86 x 10(15) and 1.62 x 10(14) W/cm(2), respectively. At 405 nm, DME is possibly firstly ionized by multiphoton absorption, and then parent ion DME+ dissociates into fragments via filed-induced dissociation. For 8 10 and 270 nm laser fields, DME firstly dissociates into CH3O and CH3 fragments and then these neutral fragments are ionized by field tunneling. Another possible way for DME to dissociate at 810 and 270 nm is that DME is ionized by intense field ejection of inner valance electron and then the excited DME+ dissociates into fragment ions. Ultrafast rearrangement of DME or DME+ in intense field may be responsible to the unpredictable fragment ions, CHO+/C2H5+ and H-2(+) (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: LASER-PULSES ;  UNIMOLECULAR DECOMPOSITION ;  DISSOCIATIVE IONIZATION ;  AROMATIC-HYDROCARBONS ;  AB-INITIO ;  PHOTOIONIZATION ;  MOLECULES ;  FLUORESCENCE ;  DYNAMICS ;  ALCOHOLS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000239380700038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98317
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.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China

Recommended Citation:
Zhu, Jingyi,Guo, Wei,Wang, Yanqiu,et al. Fragmentation of dimethyl ether in femtosecond intense field[J]. CHEMICAL PHYSICS,2006,326(2-3):571-576.
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