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Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules
Li Haiyang; Bai Jiling
KeywordPopulation Rate Equation Multiphoton Ionization Mass Spectrum Fragmentation Furan
Source PublicationACTA PHYSICO-CHIMICA SINICA
1995
DOI10.3866/PKU.WHXB19950203
Volume11Issue:2Pages:107-112
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
AbstractOn the basis of population rate equation of multiphoton ionization and fragmentation processes, the controllability of fragmentation process in MPI experiments of polyatomic molecules is analyzed in this paper. Curves of ionization efficiency and mean energy < E > of ions versus laser intensity were calculated for different ionization schemes. From the calculation results, we find that only 1+1 ionization scheme, soft ionization and hard fragmentation can be controlled by changing the intensity of ionization laser. For 3+1 ionization scheme, due to additional absorption photons after ionization, the ions have already obtained internal energy about 20 similar to 30eV/per ion even at single ion detection limit. This amount of energy far exceeds the dissociation threshold of the parent ion, so the parent ions formed by ionization can completely dissociate to daughters in the same laser pules. Our analyses can explain why parent ions didn't appear in MPI mass spectra of furan molecule at 450 nm.
Language英语
WOS IDWOS:000207590100003
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139435
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol Dynam, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li Haiyang,Bai Jiling. Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules[J]. ACTA PHYSICO-CHIMICA SINICA,1995,11(2):107-112.
APA Li Haiyang,&Bai Jiling.(1995).Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules.ACTA PHYSICO-CHIMICA SINICA,11(2),107-112.
MLA Li Haiyang,et al."Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules".ACTA PHYSICO-CHIMICA SINICA 11.2(1995):107-112.
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