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题名: The field-assisted stepwise dissociation of acetone in an intense femtosecond laser field
作者: Tang, XP;  Wang, SF;  Elshakre, ME;  Gao, LR;  Wang, YL;  Wang, HF;  Kong, FA
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2003-01-09
DOI: 10.1021/jp026331a
卷: 107, 期:1, 页:13-18
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 dissociation of acetone in an intense (10(13)-10(14) W/cm(2)) femtosecond laser field has been investigated. The stepwise nature of the dissociation has been verified by analyzing the time-of-flight mass spectroscopic patterns at different laser intensities. The stepwise nature was interpreted using a quasi-diatomic field-assisted dissociation model and the QCT calculations. Both the experimental identification and the theoretical predictions show that if the laser intensity is gradually increased, the sequence of the primary dissociation is C-C, C-O, and C-H bonds in the acetone ion. The preference of breaking the C-C and C-O bond over the H-elimination of the C-H bond is also the case in the secondary dissociation.
关键词[WOS]: VIBRATIONAL-STATE DISTRIBUTIONS ;  INDUCED MULTIPLE IONIZATION ;  N-3S RYDBERG STATE ;  COULOMB EXPLOSION ;  193 NM ;  SMALL MOLECULES ;  MULTIPHOTON IONIZATION ;  EMISSION-SPECTROSCOPY ;  POLYATOMIC-MOLECULES ;  SPATIAL ALIGNMENT
语种: 英语
WOS记录号: WOS:000180254700003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138242
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, Ctr Mol Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Tang, XP,Wang, SF,Elshakre, ME,et al. The field-assisted stepwise dissociation of acetone in an intense femtosecond laser field[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2003,107(1):13-18.
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