ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The results of an optical–optical double resonance study of the 1 1Πg state of 7Li2 are presented. This completes the observation and characterization of all singlet states of Li2 correlating with the Li(2s)+Li(2p) dissociation limit. Data spanning the first 31 vibrational levels were used to obtain Dunham molecular constants and a Rydberg–Klein–Rees (RKR) potential corresponding to 96% of the estimated potential well. The 1 1Πg state, which lies at Te=21 998.25 cm−1, can be characterized by a limited set of Dunham coefficients with ωe=93.354 cm−1, ωexe =−1.874 cm−1, Be=0.291 89 cm−1, and a dissociation energy De=1422.5±0.3 cm−1. The results are compared with the predictions of recent theoretical treatments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.458402
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