New High-Resolution Analysis of the 3ν3 and 2ν1 + ν3 Bands of Nitrogen Dioxide (NO2) by Fourier Transform Spectroscopy
New High-Resolution Analysis of the 3ν3 and 2ν1 + ν3 Bands of Nitrogen Dioxide (NO2) by Fourier Transform Spectroscopy
复制标题
利用傅里叶变换光谱法对二氧化氮 (NO2) 的 3ν3 和 2ν1 + ν3 谱带进行新的高分辨率分析
DOI：
10.1006/jmsp.2000.8064
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发表时间：
2000
影响因子：
1.4
通讯作者：
C. Rinsland
中科院分区：
文献类型：
--
作者：
T. Stephen;A. Goldman;A. Perrin;J. Flaud;F. Keller;C. Rinsland
利用丹佛大学在2 μm波段记录的新的高分辨率傅里叶变换光谱，对二氧化氮的2ν 1 + ν 3和3ν 3谱带进行了新的和更扩展的分析，它们分别位于4179.9374和4754.2039 cm −1。利用一个理论模型，考虑了（201）振动“亮”态和（220）“暗”态的自旋-旋转能级之间的科里奥利相互作用，令人满意地再现了自旋-旋转能级。（003）亮态与（022）暗态之间的相互作用也进行了类似的处理。每个NO2振动态内的自旋-旋转共振也被考虑在内。得到了14 N16 O2相互作用态的两个二对子{（220），（201）}和{（022），（003）}的振动能、转动常数、自旋-转动常数和耦合常数.由2ν 1 + ν 3和3ν 3带的实验谱线强度，确定了它们的振动跃迁矩常数。得到了14 N16 O2的{2ν 1 + 2ν 2，2ν 1 + ν 3 }和{2ν 2 + 2ν 3，3ν 3 }相互作用带的谱线位置和谱线强度的综合列表。此外，假设谐波近似，并使用本文和以前的研究（A。Perrin，J.- M. Flaud，A.戈德曼角，澳-地Camy-Peyret，W. J. Laffeine，Ph. Arcas，and C. P. Rinsland，J. Quant.光谱Radiat. Transfer 60，839-850（1998）），我们生成了6.3 μm处的{（022），（003）}-{（040），（021），（002）}热带和3.5 μ m处的{（220），（201）}-{（100），（020），（001）}热带的合成光谱，这与观察到的光谱很好地一致。
Abstract Using new high-resolution Fourier transform spectra recorded at the University of Denver in the 2-μm region, a new and more extended analysis of the 2ν 1 + ν 3 and 3ν 3 bands of nitrogen dioxide, located at 4179.9374 and 4754.2039 cm −1 , respectively, has been performed. The spin–rotation energy levels were satisfactorily reproduced using a theoretical model that takes into account both the Coriolis interactions between the spin–rotation energy levels of the (201) vibrational “bright” state with those of the (220) “dark” state. The interactions between the (003) bright state with the (022) dark state were similarly treated. The spin–rotation resonances within each of the NO 2 vibrational states were also taken into account. The precise vibrational energies and the rotational, spin–rotational, and coupling constants were obtained for the two dyads {(220), (201)} and {(022), (003)} of the 14 N 16 O 2 interacting states. From the experimental line intensities of the 2ν 1 + ν 3 and 3ν 3 bands, a determination of their vibrational transition moment constants was performed. A comprehensive list of line positions and line intensities of the {2ν 1 + 2ν 2 , 2ν 1 + ν 3 } and the {2ν 2 + 2ν 3 , 3ν 3 } interacting bands of 14 N 16 O 2 was generated. In addition, assuming the harmonic approximation and using the Hamiltonian constants derived in this work and in previous studies (A. Perrin, J.-M. Flaud, A. Goldman, C. Camy-Peyret, W. J. Lafferty, Ph. Arcas, and C. P. Rinsland, J. Quant. Spectrosc. Radiat. Transfer 60, 839–850 (1998)), we have generated synthetic spectra for the {(022), (003)}–{(040), (021), (002)} hot bands at 6.3 μm and for the {(220), (201)}–{(100), (020), (001)} hot bands at 3.5 μm, which are in good agreement with the observed spectra.