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Acta Physica Sinica (Overseas Edition), 1997, Vol. 6(10): 725-730    DOI: 10.1088/1004-423X/6/10/002
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

(2+2)RESONANCE-ENHANCED MULTIPHOTON IONIZATION-FRAGMENTATION STUDY OF DIMETHYLAMINE

WEI JIE (魏杰), FANG LI (方黎), ZHANG BING (张冰), GUO WEN-YUE (郭文跃), ZHANG LIAN-DI (章莲蒂), ZHANG SHU-DONG (张树东), CAI JI-YE (蔡继业)
Laser Spectroscopy Laboratory,Anhui Institute of Optics and Fine Mechanics,Academia Sinica,Heifei 230031, China
Abstract  The multiphoton ionization spectra of dimethylamine are given in the 445-470 nm region. A time of flight mass spectrometer was used,and experiment was done under collision free condition. It is found that (2+2) resonance enhanced multiphoton ionization through (nN,3s) Rydberg state produces parent ions which endure pseudo-$\alpha$ and C—N bond cleavages. The former forms CH3N+H=CH2 ions,and the latter gives CH2=N+H2 ions .
Received:  23 April 1997      Accepted manuscript online: 
PACS:  33.80.Rv (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))  
  33.15.Fm (Bond strengths, dissociation energies)  
  33.15.Ta (Mass spectra)  
Fund: Project supported by the National Natural Science Foundation of China.

Cite this article: 

WEI JIE (魏杰), FANG LI (方黎), ZHANG BING (张冰), GUO WEN-YUE (郭文跃), ZHANG LIAN-DI (章莲蒂), ZHANG SHU-DONG (张树东), CAI JI-YE (蔡继业) (2+2)RESONANCE-ENHANCED MULTIPHOTON IONIZATION-FRAGMENTATION STUDY OF DIMETHYLAMINE 1997 Acta Physica Sinica (Overseas Edition) 6 725

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