Rotational and deperturbation analysis of the (0,0) and (1,0) vibrational bands of the [15.30]1 – X 3Σ–(0+) transition of WS

Rotational and deperturbation analysis of the (0,0) and (1,0) vibrational bands of the [15.30]1 – X 3Σ–(0+) transition of WS
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WS 的 [15.30]1 – X 3Σ –(0 ) 跃迁的 (0,0) 和 (1,0) 振动带的旋转和去扰动分析

DOI:
10.1016/j.jms.2022.111702
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发表时间:
2022
影响因子:
1.4
通讯作者:
O'Brien, Leah C.
O'Brien, Leah C.
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Bales, Kristin N.;Harms, Jack C.;O'Brien, James J.;O'Brien, Leah C.

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使用与傅里叶变换光谱仪集成进行检测的腔内激光光谱仪 (ILS-FTS) 以高分辨率记录硫化钨 (WS) 的 [15.30]1 –X3Σ–(0+) 跃迁的 (0,0) 和 (1,0) 谱带。使用约 70% Ar 和 30% H2 以及微量 CS2 的气体混合物,在钨衬里铜空心阴极的等离子体放电中产生目标 WS 分子。反应室中的总压力约为1托。在所有四种丰度同位素体:182W32S、183W32S、184W32S和186W32S的每个光谱中观察到异质质量和J依赖性扰动的证据。这些扰动归因于与 WS 的 [14.26]0+ 态的 v = 2 和 v = 3 振动能级的相互作用。使用 PGOPHER 进行旋转分析和去扰动分析以确定两种状态的参数。使用将参数限制为预期质量关系的邓纳姆式模型来描述扰动状态。
The (0,0) and (1,0) bands of the [15.30]1 –X3Σ–(0+) transition of tungsten sulfide (WS) were recorded at high resolution using intracavity laser spectroscopy integrated with a Fourier-transform spectrometer for detection (ILS-FTS). The target WS molecules were produced in the plasma discharge of a tungsten-lined copper hollow cathode, using a gas mixture of approximately 70 % Ar and 30 % H2, with a trace amount of CS2. The total pressure in the reaction chamber was about 1 torr. Evidence of heterogeneous mass- and J-dependent perturbations was observed in each spectrum for all four abundant isotopologues:182W32S,183W32S,184W32S, and186W32S. The perturbations were attributed to interactions with the v = 2 and v = 3 vibrational levels of the [14.26]0+state of WS. A rotational analysis with deperturbation analysis was performed using PGOPHER to determine parameters for both states. A Dunham-like model which constrains parameters to expected mass relationships was used to describe the perturbed states.
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