Hyper‐Raman spectroscopy of alcohols excited at 532 nm: Methanol, ethanol, 1‐propanol, and 2‐propanol,Journal of Raman Spectroscopy

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Hyper‐Raman spectroscopy of alcohols excited at 532 nm: Methanol, ethanol, 1‐propanol, and 2‐propanol
Journal of Raman Spectroscopy ( IF 2.4 ) Pub Date : 2021-01-13 , DOI: 10.1002/jrs.6066
Masanari Okuno ₁

Affiliation

Hyper‐Raman (HR) measurements of four simple alcohols have been demonstrated. High‐quality HR spectra with high signal to noise ratios allow us to discuss spectral features in detail. Measured HR spectra are compared with IR and Raman spectra. High similarities between HR and IR spectra are found both in the fingerprint and the CH stretching regions. Meanwhile, HR and IR spectra show differences in spectral features including relative intensities of the OH stretch to the CH stretches. Besides, the frequencies of the hydrogen‐bonded OH stretching mode in HR spectra locate around 3,360 cm⁻¹, higher than those observed in IR spectra. These differences reflect the difference in the selection rules of spectroscopic methods.

中文翻译：

532 nm激发的醇的高拉曼光谱：甲醇，乙醇，1-丙醇和2-丙醇

已经证明了四种简单酒精的高拉曼（HR）测量。具有高信噪比的高质量HR光谱使我们能够详细讨论光谱特征。将测得的HR光谱与IR和拉曼光谱进行比较。在指纹和CH拉伸区域均发现HR和IR光谱之间的高度相似性。同时，HR和IR光谱显示出光谱特征的差异，包括OH拉伸与CH拉伸的相对强度。此外，HR光谱中氢键式OH拉伸模式的频率位于3360 cm ^-1附近，高于IR光谱中观察到的频率。这些差异反映了光谱方法选择规则的差异。

更新日期：2021-01-13

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