Premium
Field‐assisted dissociative ionization of CH 2 I 2 induced by femtosecond laser field
Author(s) -
Wang YanQiu,
Zhu JingYi,
Wang Li,
Cong ShuLin
Publication year - 2005
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.20874
Subject(s) - ionization , fragmentation (computing) , atomic physics , laser , femtosecond , chemistry , field (mathematics) , mass spectrometry , field desorption , physics , optics , ion , mathematics , organic chemistry , chromatography , computer science , pure mathematics , operating system
The field‐assisted dissociative ionization of CH 2 I + 2irradiated by a 60‐fs 800‐nm laser with different laser intensities (1–4 × 10 14 W/cm 2 ) is studied both experimentally and theoretically. The different fragmentation patterns are observed in the experiment with a time‐of‐flight mass spectrometer. In the theoretical aspect, the Gaussian 03 program is applied to calculate the potential energies of CH 2 I + 2as functions of the CI and CH bond distances and ICI bond angle under external field with different intensities. The calculations explain our experimental observations well. © 2005 Wiley Periodicals, Inc. Int J Quantum Chem, 2006