| 3200 - 3000 | Aromatic C-H | [37] [41] |
| 3200 - 2400 | H-bonding of organic acids | [41] [47] |
| 3200 - 3000 | Aromatic carbons (Arom-H) | [36] |
| 3130 - 3030, 900 - 670 | Aromatic (C=C?H) | [48] |
| 3100 - 3070 | Carboxylic acid (COOH) | [30] |
| 3100 - 3000 | Aromatic (C-H) | [42] |
| 3100 - 2900 | Unsaturated aliphatic (C=C-H) | [17] [19] [20] |
| 3100 - 3000 | Alkene (C-H) | [38] |
| 3100 - 3000 | Aromatic (C=C-H) | [17] [19] [20] |
| 3100 - 3000 | Unsaturated aliphatic (C=C?H) | [48] |
| 3100 - 3000 | Unsaturated and aromatic (C-H) | [12] |
| 3100 | H-bonding of organic acid | [46] |
| 3100 - 2900 | Alkane groups | [33] |
| 3090 - 3075, 3050 - 3000, 990 - 815 | Aliphatic Hydrocarbons (C-H) | [12] |
| 3050 | Aromatic (C-H) | [24] [49] |
| 3040, 2920, 2860 | Aromatic (C-H) | [28] |
| 3006 | =CH stretch | [50] |
| >3000, 860 - 710 | Nitro-polyaromatic hydrocarbons (PAH) aromatic (C-H) | [12] |
| >3000, 860 - 710 | Aromatic polycarboxylic acids aromatic (C-H) | [12] |
| 3000 - 2880 | Aliphatic (C-H) | [49] |
| 3000 - 2850, 1480 - 1370 | Aliphatic carbon (C-H) | [38] |
| 3000 - 2850, 1410 | Aliphatic carbons (-CH2) | [39] |
| 3000 - 2850 | Aliphatic (C?H) | [5] [12] |
| 3000 - 2800, 1452 - 5 | Aliphatic carbons (C-H) | [17] [29] [36] [37] |
| 3000 - 2800, 1450 | Saturated aliphatic (C-C-H) | [19] [20] |
| 3000 - 2800 | Aliphatic (C-H) | [1] [24] [30] [41] [42] [46] |
| 2980 - 2835 | Alkane absorption (C-H) | [51] |
| 2980 | Alkene (C-H) | [24] |
| 2970 - 2930 | Aliphatic (C-H) | [7] |
| 2970 - 2845, 1485 - 1445, 1395 - 1385, 750 - 720 | Saturated aliphatic (C-C-H) | [48] |
| 2970 - 2830 | CH stretching in-CH2, and-CH3 groups | [8] |
| 2962, 2872, 1460, 1375 ± 10 | Aliphatic hydrocarbons CH3 | [12] |