Perturbation between the G1Πg and 21Δg states of 7Li2

Jianyuan Shang, Jianbing Qi, Li Li, A. Marjatta Lyyra

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Abstract

We have observed the rotational levels in the ν = 2, 3, 5, 6, 7, and 8 vibrational manifolds of the 21Δg state of 7Li2 via the A1Σu+ intermediate levels by δΛ = 2 transitions. This violation of the δΛ = 0, ±1 selection role is due to the interaction with the G1Πg state. Band-by-band deperturbations of the G1Πg to approximately 21ΔgΠ, νΔ) = (11, 2), (12, 3), (15, 5), (16, 6), (18, 7), and (19, 8) bands have been performed. Deperturbed molecular constants and rotational-electronic interaction parameters are reported here.

Original languageEnglish (US)
Pages (from-to)255-263
Number of pages9
JournalJournal of molecular spectroscopy
Volume203
Issue number2
DOIs
Publication statusPublished - Oct 2000

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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