1,720 | 1,725 | Unconjugated C = O in hemicellulose |
1,635 | 1,637 | Conjugated C = O in lignin |
1,591 | 1,591 | C = O stretching vibration in syringyl lingin |
1,508 | 1,508 | C = O stretching vibration in guaiacyl lingin |
1,452 | 1,450 | C-H bending vibration in lignin and aromatic carbon skeleton |
1,422 | 1,422 | C-H deformation and aromatic ring skeletal vibrations in lignin and carbohydrates |
1,365 | 1,370 | C-H deformation in cellulose and hemicellulose |
1,314 | 1,313 | C-H vibration in celluloseC-O vibration in syringyl lignin |
1,260 | 1,260 | C = O stretching vibration in guaiacyl lingin |
1,240 | 1,241 | C-O stretching in hemicellulose and syringyl lignin |
1,176 | 1,180 | C-O-C asymmetric bridge stretching in cellulose and hemicellulose |
1,104 | 1,104 | C-O-C asymmetric bridge stretching in cellulose and hemicellulose |