Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 142, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4916045
Keywords
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Funding
- 973 Program [2013CB922403]
- National Natural Science Foundation of China [61178019, 11474009, 11434002, 11121091]
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Dissociative ionization dynamics were studied experimentally for CO2 driven by intense laser pulses. Three-dimensional momentum vectors of correlated atomic ions were obtained for each three-body fragmentation event using triple ion coincidence measurement. Newton diagram demonstrated that three-body fragmentation of CO2n+ (n = 3-6) can occur through Coulomb explosion process and sequential fragmentation process depending on the fragmentation channels. The experimental data from these two processes were disentangled by using correlation diagram of correlated ions. Based on the accurate Coulomb explosion data, we reconstructed the bond angle distributions of CO2n+ at the moment of fragmentation, which are close to that of neutral CO2 before laser irradiation. (c) 2015 AIP Publishing LLC.
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