| 1 |
1708–1738 |
Stretching of C=O unconjugated to aromatic rings (oxidized
side chains, non-conjugated carbonyl) |
| 2 |
1655 |
Stretching of C=O conjugated to aromatic rings (conjugated
carbonyl) |
| 3 |
1590–1609 |
Aromatic ring vibrations and C=O stretching |
| 4 |
1500–1515 |
Aromatic ring vibrations |
| 5 |
1455/1425 |
C–H deformation and aromatic ring vibration |
| 6 |
1420–1424 |
Aromatic ring vibrations |
| 7 |
1375 |
C–H stretching in cellulose and hemicellulose |
| 8 |
1330–1325 |
Syringyl nuclei (C–O stretching) |
| 9 |
1270-1268/1244 |
Guaiacyl nuclei (C–O stretching) |
| 10 |
1221 |
C–C, C–O, C=O stretching in G ring |
| 11 |
1160 |
Deformation vibrations of C–H bonds on benzene
rings |
| 12 |
1120 |
Carbon ring stretching of cellulose |
| 13 |
1115 |
Vibrations of ester linkage |
| 14 |
1086 |
C–O stretch of secondary alcohols and aliphatic
ethers |
| 15 |
1048 |
C–O stretch in cellulose and hemicellulose |
| 16 |
1060/1040/1030 |
C–O stretch (primary alcohols) |
