The v 3 and v 4 interacting bands of HNO3 line positions and line intensities
The v 3 and v 4 interacting bands of HNO3 line positions and line intensities
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HNO3 线位置和线强度的 v 3 和 v 4 相互作用带
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
A. Valentin
中科院分区：
文献类型：
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作者：
A. Perrin;O. Lado;A. Valentin
在 1230–1370 cm-1 光谱区域记录的 HNO3 极高分辨率傅里叶变换光谱已被广泛分析，从而得出该分子 v 3 和 v 4 谱带的精确谱线位置和强度。然后，使用明确考虑这两个能带之间的费米和科里奥利共振的哈密顿量，可以令人满意地再现大部分 v 3 和 v 4 相互作用的旋转能级。此外还讨论了由于未观察到的振动旋转水平引起的共振。测量了属于 v 3 和 v 4 带的 218 个单独跃迁的强度，从而可以精确确定相应跃迁矩算子的展开所涉及的常数。最后计算出 HNO3 v 3 和 v 4 谱带的完整合成谱。
Very high resolution Fourier transform spectra of HNO3 recorded in the 1230–1370 cm-1 spectral region have been extensively analysed leading to precise line positions and intensities for the v 3 and v 4 bands of this molecule. Then, using a hamiltonian which takes explicitly into account the Fermi and Coriolis resonances between these two bands, it has been possible to reproduce satisfactorily the majority of the v 3 and v 4 interacting rotational levels. Moreover resonances due to unobserved vibrorotational levels are discussed. Intensities of 218 individual transitions belonging to the v 3 and v 4 bands were measured allowing a precise determination of the constants involved in the expansion of the corresponding transition moment operators. Finally a complete synthetic spectrum of the v 3 and v 4 bands of HNO3 has been computed.