Analysis of the newly observed [15.05]0+ – X3Σ–(0+) transition of WS observed using intracavity laser spectroscopy with Fourier-transform detection

Analysis of the newly observed [15.05]0+ – X3Σ–(0+) transition of WS observed using intracavity laser spectroscopy with Fourier-transform detection
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使用腔内激光光谱和傅里叶变换检测对新观察到的 WS 的 [15.05]0 → X3β–(0 ) 跃迁进行分析

DOI:
10.1016/j.jms.2021.111430
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发表时间:
2021
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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利用内腔激光光谱傅里叶变换探测技术(ILS-FTS),在多普勒极限分辨率下记录了硫化钨的一个新的电子跃迁(WS)中的几个谱带。在钨内衬铜空心阴极的等离子体放电中,在含有约70%的Ar和30%的H2的气体混合物的存在下,与痕量的CS2在总压力为1 μ s的情况下产生WS分子。观察到WS [15.05]0+-X3 <$-(0+)跃迁的(0,0),(1,0),(2,0),(1,1),(2,1)和(3,1)带。在拟合中使用(0,0)、(1,0)和(2,0)带的四个主要同位素体(182 W32 S、183 W32 S、184 W32 S和186 W32 S)的线位置。使用PGOPHER分析WS带,其中先前确定了X3 π-(0+)基态的常数[Harmset等人,J. Mol. Spectrosc.374,111,378(2020)]固定在配合物中。在(0,0)带中观察到扰动,其似乎是由尚未观察到的电子状态引起的。新确定的激发态的分子参数。
Several bands in a new electronic transition of tungsten sulfide, WS, have been recorded at Doppler-limited resolution using intracavity laser spectroscopy with Fourier-transform detection (ILS-FTS). WS molecules were produced in the plasma discharge of a W-lined Cu hollow cathode in the presence of a gas mixture containing approximately 70% Ar and 30% H2, with a trace amount of CS2at a total pressure of 1 torr. The (0,0), (1,0), (2,0), (1,1), (2,1), and (3,1) bands of the [15.05]0+–X3Σ–(0+) transition of WS were observed. Line positions for the four major isotopologues (182W32S,183W32S,184W32S, and186W32S) of the (0,0), (1,0), and (2,0) bands were used in the fit. The WS bands were analyzed using PGOPHER, with previously determined constants for theX3Σ–(0+) ground state [Harmset al.,J. Mol. Spectrosc.374, 111,378 (2020)] held fixed in the fit. A perturbation was observed in the (0,0) band which appears to be caused by an electronic state that has not been observed. Molecular parameters for the newly identified excited state are presented.
使用腔内激光光谱和傅里叶变换检测观察和分析 WS 的新 [14.26]0+ – X 3Σ–0+ 跃迁
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发表时间: 2020
影响因子: 1.4
作者:
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