小檗科淫羊霍
小檗科 淫羊霍
红外光谱仪
理工 Translation Copyright 2000 John wiley and Sons, Inc
gz 理工 学 100 90 80 70 860 C 50 40 CH3(CH2)6CH3 CH3 (C-H bending) 30 -CH2- 20 CH -CH2- (C-H bending 10 (C-H stretching)(C-H stretching) 0 4000360032002800240020001800160014012001000800650 Wavenumber(cm-1) Figure 2.11 The IR spectrum of octane. (Notice that, in IR spectra, the peaks are usually measured in transmittance. Thus, the peak at 2900 cm"' has 10% transmittance, that is, an absorbance, A, of 0.90). Copyright 2000 John Wiley and Sons, Inc
实例 波数/cm-1 400036320028002400200018001600140120100080660040 设附 正丁烷的红外光谱 253,03,54,0 者§01214i620 波长/m 2850-2960cm1c-H伸缩振动 1450-1470cm1cH2的剪式振动; 1370-1380cm1CH2的平面摇摆振动 720-750cm1是存在四个或四个以上cH2的吸收, 若小于四个CH2时吸收峰在734-743cm
2850-2960cm-1 C- H 伸缩振动; 1450-1470cm-1 CH2 的剪式振动; 1370-1380cm-1 CH2 的平面摇摆振动; 720-750cm-1 是存在四个或四个以上CH2 的吸收, 若小于四个CH2 时,吸收峰在734-743cm-1 . 正丁烷的红外光谱 实例