Perturbation between the G1Πg and 21Δg states of 7Li2

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

doi:10.1006/jmsp.2000.8188

Perturbation between the G¹Π_g and 2¹Δ_g states of ⁷Li₂

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

Division of Science (Berks)

Research output: Contribution to journal › Article

4 Scopus citations

Abstract

We have observed the rotational levels in the ν = 2, 3, 5, 6, 7, and 8 vibrational manifolds of the 2¹Δ_g state of ⁷Li₂ via the A¹Σ_u⁺ intermediate levels by δΛ = 2 transitions. This violation of the δΛ = 0, ±1 selection role is due to the interaction with the G¹Π_g state. Band-by-band deperturbations of the G¹Π_g to approximately 2¹Δ_g (ν_Π, ν_Δ) = (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 language	English (US)
Pages (from-to)	255-263
Number of pages	9
Journal	Journal of molecular spectroscopy
Volume	203
Issue number	2
DOIs	https://doi.org/10.1006/jmsp.2000.8188
Publication status	Published - Oct 2000

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All Science Journal Classification (ASJC) codes

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

Cite this

Shang, J., Qi, J., Li, L., & Lyyra, A. M. (2000). Perturbation between the G¹Π_g and 2¹Δ_g states of ⁷Li₂. Journal of molecular spectroscopy, 203(2), 255-263. https://doi.org/10.1006/jmsp.2000.8188

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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 21Δg (νΠ, 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.",

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N2 - 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 21Δg (νΠ, 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.

AB - 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 21Δg (νΠ, 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.

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10.1006/jmsp.2000.8188