Analysis of the 0-0, 1-0, and 2-0 Bands of the [18.09]4 (5Δ4) -X4 (5Δ4) and [18.46]3 (5Δ3) – X3 (5Δ3) transitions of ruthenium monoxide (RuO)

IF 1.4 4区物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Journal of Molecular Spectroscopy Pub Date : 2023-02-01 DOI:10.1016/j.jms.2023.111742

G.M. Chenard , A.G. Adam , H. Zarringhalam , D.W. Tokaryk , C. Linton

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Abstract

Laser Induced Fluorescence (LIF) has been used to study the spectroscopy of ruthenium monoxide (RuO) in the UNB laser-ablation molecular-jet apparatus. High-resolution spectra of the 0–0, 1–0 and 2–0 bands of the [18.09]4 – X4 and [18.46]3 – X3 transitions have been obtained with a linewidth (FWHM) of ∼100 MHz. Rotational structure of six individual isotopologues ⁹⁶RuO, ⁹⁹RuO, ¹⁰⁰RuO, ¹⁰¹RuO, ¹⁰²RuO and ¹⁰⁴RuO was well resolved and used to examine the rotational and vibrational isotope effects. In addition, hyperfine structure due to the nuclear spin (I = 5/2) of ⁹⁹Ru and ¹⁰¹Ru has been resolved and used as an aid in establishing the electron configurations of the electronic states. The relative hyperfine widths in the Ω = 4 and 3 states are shown to be consistent with their assignment as components of ⁵Δ states.

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氧化钌(RuO) [18.09]4 (5Δ4) - x4 (5Δ4)和[18.46]3 (5Δ3) - X3 (5Δ3)跃迁的0-0、1-0和2-0波段分析

利用激光诱导荧光(LIF)在UNB激光烧蚀分子喷射装置中研究了一氧化钌(RuO)的光谱。获得了[18.09]4 - X4和[18.46]3 - X3跃迁的0-0、1-0和2-0波段的高分辨率光谱，线宽(FWHM)为~ 100 MHz。对96RuO、99RuO、100RuO、101RuO、102RuO和104RuO的旋转结构进行了解析，分析了其旋转和振动同位素效应。此外，99Ru和101Ru的核自旋(I = 5/2)引起的超精细结构也得到了解析，并作为建立电子态电子组态的辅助手段。Ω = 4和3状态下的相对超细宽度与它们作为5Δ状态分量的分配是一致的。

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来源期刊

Journal of Molecular Spectroscopy 物理-光谱学

CiteScore

2.70

自引率

21.40%

发文量

审稿时长

29 days

期刊介绍： The Journal of Molecular Spectroscopy presents experimental and theoretical articles on all subjects relevant to molecular spectroscopy and its modern applications. An international medium for the publication of some of the most significant research in the field, the Journal of Molecular Spectroscopy is an invaluable resource for astrophysicists, chemists, physicists, engineers, and others involved in molecular spectroscopy research and practice.

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