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二乙胺分子的多光子电离:"梯转换"过程
引用本文:魏杰,方黎,章莲蒂,郭文跃,张树东,姜芸芸,蔡继业. 二乙胺分子的多光子电离:"梯转换"过程[J]. 物理化学学报, 1998, 14(3): 270-274. DOI: 10.3866/PKU.WHXB19980316
作者姓名:魏杰  方黎  章莲蒂  郭文跃  张树东  姜芸芸  蔡继业
作者单位:Laser Spectroscopy Laboratory,Anhui Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences,Heifei 230031
摘    要:

关 键 词:二乙胺  多光子电离  飞行时间质谱  
收稿时间:1997-06-16
修稿时间:1997-10-20

Multiphoton lonization of Diethylamine:"Ladder Switching"Model
Wei Jie,Fang Li,Zhang Lian-Di,Guo Wen-Yue,Zhang Shu-Dong,Jiang Yun-Yun,Cai Ji-Ye. Multiphoton lonization of Diethylamine:"Ladder Switching"Model[J]. Acta Physico-Chimica Sinica, 1998, 14(3): 270-274. DOI: 10.3866/PKU.WHXB19980316
Authors:Wei Jie  Fang Li  Zhang Lian-Di  Guo Wen-Yue  Zhang Shu-Dong  Jiang Yun-Yun  Cai Ji-Ye
Affiliation:Laser Spectroscopy Laboratory,Anhui Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences,Heifei 230031
Abstract:The multiphoton ionization (MPI) of diethylamine is first reported in this paper. A time-of-flight mass spectrometer was used in the experiment under collision-free condition. MPI mass spectra were measured in the region of 464 ~486 nm using a dye laser and at double frequency of a Nd:YAG laser. Molecular ion was created through resonance enhanced multiphoton ionization (REMPI) via Rydberg states. Fragment, ion distribution was formed through “ladder switching” process. The experimental demonstration of the process is reported for the first time by the discussion of dependence of ion relative, abundance on laser wavelength and energy. The competition between further up-pumping and fragmentation of Parent ion also exists, and higher laser intensity favors the former.
Keywords:Diethylamine  Multiphoton ionization  Time-of-fight mass spectra
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