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Vibrational State-Selective Resonant Two-Photon Photoelectron Spectroscopy of AuS- via a Spin-Forbidden Excited State
Liu, HT; Huang, DL; Liu, Y; Cheung, LF; Dau, PD; Ning, CG; Wang, LS
2015
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume6Issue:4Pages:637—642
Subtype期刊文献
AbstractVibrational state-selective resonant two-photon photoelectron spectra have been obtained via a triplet intermediate state ((3)Sigma(-)) of AuS- near its detachment threshold using high-resolution photoelectron imaging of cryogenically cooled AuS- anions. Four vibrational levels of the (3)Sigma(-) excited state are observed to be below the detachment threshold. Resonant two-photon absorptions through these levels yield vibrational state-selective photoelectron spectra to the (3)Sigma(-) final state of neutral AuS with broad and drastically different Franck-Condon distributions, reflecting the symmetries of the vibrational wave functions of the (3)Sigma(-) intermediate state. The (3)Sigma(-) excited state is spin-forbidden from the (1)Sigma(-) ground state of AuS- and is accessed due to strong relativistic effects. The nature of the (3)Sigma(-) excited state is confirmed by angular distributions of the photoelectron images and quantum calculations.
KeywordElectronic-structure Photodetachment Spectroscopy Multiphoton Ionization Autodetachment Resolution Anions Distributions Transition Dynamics Spectrum
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24623
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Liu, HT,Huang, DL,Liu, Y,et al. Vibrational State-Selective Resonant Two-Photon Photoelectron Spectroscopy of AuS- via a Spin-Forbidden Excited State[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(4):637—642.
APA Liu, HT.,Huang, DL.,Liu, Y.,Cheung, LF.,Dau, PD.,...&Wang, LS.(2015).Vibrational State-Selective Resonant Two-Photon Photoelectron Spectroscopy of AuS- via a Spin-Forbidden Excited State.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(4),637—642.
MLA Liu, HT,et al."Vibrational State-Selective Resonant Two-Photon Photoelectron Spectroscopy of AuS- via a Spin-Forbidden Excited State".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.4(2015):637—642.
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