Observation and Analysis of theA1[formula]State of6Li2fromv= 0 to the Dissociation Limit
β Scribed by C. Linton; F. Martin; I. Russier; A.J. Ross; P. Crozet; S. Churassy; R. Bacis
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 324 KB
- Volume
- 175
- Category
- Article
- ISSN
- 0022-2852
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β¦ Synopsis
Interacting rovibrational levels of the F 1 S / g and E 1 S / g states of 6 Li 2 have been excited via the optical-optical doubleresonance process, (F,
The resulting fluorescence in the region 7000-11 000 cm 01 , which has been examined at high resolution with a Fourier transform spectrometer, was found to consist of transitions to very high levels of the A 1 S / u state. These are only observed when there is an interaction between the F state level and an E state level above the shelf in the potential curve, and occur when either level is excited. Levels up to Β£ Γ 84, Γ2.5 cm 01 below the dissociation limit, have been assigned and the data extend well into the long-range region, up to R Γ 51 A Λ. An analysis of the data in this region has yielded the following long-range parameters for the A 1 S / state: D 0 Γ 9214.68(5) cm 01 , D e Γ 9352.27(5) cm 01 , C 3 Γ 3.580(10) 1 10 5 cm 01 rA Λ3, C 6 Γ 1.0(2) 1 10 7 cm 01 rA Λ6. Based on the results of the analysis of the A 1 S / u state data, a value of D e (X 1 S / g ) Γ 8517.03(05) cm 01 has been calculated for the dissociation energy of the ground state of 6 Li 2 .
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