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Observation and Analysis of theA1[formula]State of6Li2fromv= 0 to the Dissociation Limit

✍ 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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✦ 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, Γ‡2.5 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 ˚. 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 ˚3, C 6 Γ… 1.0(2) 1 10 7 cm 01 rA ˚6. 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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