Millimeter-wave spectroscopy of vibrationally excited ground state alkaline-earth hydroxide radicals (X 2Σ+)
Millimeter-wave spectroscopy of vibrationally excited ground state alkaline-earth hydroxide radicals (X 2Σ+)
复制标题
振动激发基态碱土氢氧化物自由基 (X 2Σ+) 的毫米波光谱
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
L. Ziurys
中科院分区：
文献类型：
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作者：
D. Fletcher;M. Anderson;W. Barclay;L. Ziurys
使用毫米波吸收光谱法记录了碱土金属氢氧化物基态电子态（X 2 π +）的振动激发态（0 1 0）、（0 2 0）、（0 3 0）和（1 0 0）的纯转动光谱。研究了自由基MgOH、CaOH、SrOH和BaOH。CaOH、SrOH和BaOH的数据用线性2 π +模型进行分析，但增加了两项以解释v2=1 2Π和v2=2 2Δ振动能级与2Π和2Δ电子态的污染。然而，MgOH的数据与该线性模型拟合不佳，这是该物质为准线性的额外证据。
Pure rotational spectra of the alkaline‐earth monohydroxides have been recorded for vibrationally excited states (0 1 0), (0 2 0), (0 3 0), and (1 0 0) of the ground electronic state (X 2Σ+) using millimeter‐wave absorption spectroscopy. The radicals MgOH, CaOH, SrOH, and BaOH were studied. The data for CaOH, SrOH, and BaOH were analyzed with a linear 2Σ+ model, but with the addition of two terms to account for contamination of the v2=1 2Π and v2=2 2Δ vibronic levels with 2Π and 2Δ electronic states. The data for MgOH, however, did not fit well to this linear model and is additional evidence that this species is quasilinear.