Fine and magnetic hyperfine structure in the A2Π and X 2Σ+ states of yttrium monoxide

W. J. Childs; O. Poulsen; Timothy Steimle

doi:10.1063/1.454186

Fine and magnetic hyperfine structure in the A²Π and X ²Σ⁺ states of yttrium monoxide

W. J. Childs, O. Poulsen, Timothy Steimle

Molecular Sciences, School of (SMS)

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Abstract

A molecular beam optical and rf-optical double resonance spectroscopic study of numerous vibrational components in the A²Π_3/2- X²Σ⁺ subband of gas phase YO has been performed. The fine and magnetic hyperfine parameters for v=0-4 of the X²Σ ⁺ state have been determined. The observed strong vibrational dependence of the spin-rotation parameter γ(X²Σ ⁺) is proposed to arise from a perturbation from two as yet unobserved low-lying ²Π states coming from a three open-shell configuration. The magnetic hyperfine parameters for the X²Σ ⁺ state can be interpreted in terms of a single unpaired electron model. An estimate for the A²Π excited state dipolar parameter has been established.

Original language	English (US)
Pages (from-to)	598-606
Number of pages	9
Journal	The Journal of chemical physics
Volume	88
Issue number	2
DOIs	https://doi.org/10.1063/1.454186
State	Published - Jan 1 1988

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Fine and magnetic hyperfine structure in the A2Π and X 2Σ+ states of yttrium monoxide",

abstract = "A molecular beam optical and rf-optical double resonance spectroscopic study of numerous vibrational components in the A2Π3/2- X2Σ+ subband of gas phase YO has been performed. The fine and magnetic hyperfine parameters for v=0-4 of the X2Σ + state have been determined. The observed strong vibrational dependence of the spin-rotation parameter γ(X2Σ +) is proposed to arise from a perturbation from two as yet unobserved low-lying 2Π states coming from a three open-shell configuration. The magnetic hyperfine parameters for the X2Σ + state can be interpreted in terms of a single unpaired electron model. An estimate for the A2Π excited state dipolar parameter has been established.",

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T1 - Fine and magnetic hyperfine structure in the A2Π and X 2Σ+ states of yttrium monoxide

AU - Childs, W. J.

AU - Poulsen, O.

AU - Steimle, Timothy

PY - 1988/1/1

Y1 - 1988/1/1

N2 - A molecular beam optical and rf-optical double resonance spectroscopic study of numerous vibrational components in the A2Π3/2- X2Σ+ subband of gas phase YO has been performed. The fine and magnetic hyperfine parameters for v=0-4 of the X2Σ + state have been determined. The observed strong vibrational dependence of the spin-rotation parameter γ(X2Σ +) is proposed to arise from a perturbation from two as yet unobserved low-lying 2Π states coming from a three open-shell configuration. The magnetic hyperfine parameters for the X2Σ + state can be interpreted in terms of a single unpaired electron model. An estimate for the A2Π excited state dipolar parameter has been established.

AB - A molecular beam optical and rf-optical double resonance spectroscopic study of numerous vibrational components in the A2Π3/2- X2Σ+ subband of gas phase YO has been performed. The fine and magnetic hyperfine parameters for v=0-4 of the X2Σ + state have been determined. The observed strong vibrational dependence of the spin-rotation parameter γ(X2Σ +) is proposed to arise from a perturbation from two as yet unobserved low-lying 2Π states coming from a three open-shell configuration. The magnetic hyperfine parameters for the X2Σ + state can be interpreted in terms of a single unpaired electron model. An estimate for the A2Π excited state dipolar parameter has been established.

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Fine and magnetic hyperfine structure in the A²Π and X ²Σ⁺ states of yttrium monoxide

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