Two-photon spectroscopy of autoionizing states of Xe2 near threshold

The two-photon ionization spectrum of Xe² in the region of the first ionization threshold is presented. Vibronic bands corresponding to at least four different autoionizing electronic states of Xe² are observed for the first time and are tentatively assigned. The observed appearance potential is sig...

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Bibliographic Details
Published in:Chemical physics letters 1990-01, Vol.165 (2-3), p.131-136
Main Authors: PRATT, S. T, DEHMER, P. M, DEHMER, J. L
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
Exact sciences and technology
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Molecular properties and interactions with photons
Photon interactions with molecules
Physics
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Summary:The two-photon ionization spectrum of Xe² in the region of the first ionization threshold is presented. Vibronic bands corresponding to at least four different autoionizing electronic states of Xe² are observed for the first time and are tentatively assigned. The observed appearance potential is significantly higher (by 415 cm-1) than the earlier single-photon ionization result (Ng, Trevor, Mahan and Lee, - J. Chem. Phys. 65 (1976) 4327).
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(90)85417-b