Table 3 Band distribution of different functional groups in FTIR spectra.
From: Study on detonation characteristics of pulverized coal and evolution law of detonation residue
No | Pos./cm−1 | FG | No | Pos./cm−1 | FG |
|---|---|---|---|---|---|
1 | 740–750 | Penta-substituted benzene | 12 | 1685–1708 | –COOH stretch vibration |
2 | 760–790 | Tetra-substituted benzene | 13 | 2835–2850 | –CH2 symmetric stretch vibration |
3 | 800–835 | Tri-substituted benzene | 14 | 2858–2876 | –CH3 symmetric stretch vibration |
4 | 875–900 | Di-substituted benzene | 15 | 2895 | –CH stretch vibration |
5 | 1022–1040 | C–O–C stretch vibration | 16 | 2920 | –CH2 asymmetric stretch vibration |
6 | 1086–1098 | Ether C–O vibration | 17 | 2955 | –CH3 asymmetric stretch vibration |
7 | 1150–1274 | Phenol hydroxyl C–O stretch vibration | 18 | 3155–3240 | Aromatic ring –OH |
8 | 1365–1395 | –CH3 symmetric bend vibration | 19 | 3260–3320 | OH–O |
9 | 1432–1446 | –CH2 anti-symmetric bend vibration | 20 | 3420 | OH–OH |
10 | 1586–1619 | Aromatic hydrocarbons C=C stretch vibration | 21 | 3530 | OH–π |
11 | 1632–1657 | Conjugate C=O | 22 | 3590–3640 | Liminal state –OH |
