Infrared and Raman Spectra
Infrared and Raman Spectra
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DOI：
10.1007/978-3-030-18252-6_3
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发表时间：
2019-01-01
期刊：
影响因子：
--
通讯作者：
Williams, Dudley
中科院分区：
文献类型：
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作者：
Fleming, Ian;Williams, Dudley
有机化合物的红外光谱与振动能级之间的跃迁有关。可以在红外光谱中或间接地在拉曼光谱中检测和测量分子振动。从有机化学家的观点来看，最有用的振动发生在3.5 - 16 μ m（1 μ m = 10 − 6 m）的较窄范围内。光谱中吸收带的位置可以用微米（μ m）表示，但标准做法使用波数形式的频率标度，波数是波长cm-1的倒数。对于有机化学家来说，红外线的有用范围是在高频端的4000 cm − 1和低频端的600 cm − 1之间。
The infrared spectra of organic compounds are associated with transitions between vibrational energy levels. Molecular vibrations may be detected and measured either in an infrared spectrum or indirectly in a Raman spectrum. The most useful vibrations, from the point of view of the organic chemist, occur in the narrower range of 3.5–16 μm (1 μm = 10−6m). The position of an absorption band in the spectrum may be expressed in microns (μm), but standard practice uses a frequency scale in the form of wavenumbers, which are the reciprocals of the wavelength, cm−1. The useful range of the infrared for an organic chemist is between 4000 cm−1at the high-frequency end and 600 cm−1at the low-frequency end.