Official Journal of the Japan Wood Research Society
Wavenumber (cm−1) | Assignment | Component | Wavenumber from reference [23] (cm−1) | |
---|---|---|---|---|
1 | 7040 | Not assigned | ||
2 | 7020–6998 | 1st OT O–H str. + H2O | Amorphous regions in cell., water | 7003–6993 |
3 | 6930 | 1st OT O–H str. | Lignin | |
4 | 6795 | 1st OT O–H str. | Semi crystalline region in cell. | 6790 |
5 | 6720 | 1st OT O–H str. | Semi crystalline region in cell. | 6740–3700 |
1st OT O–H str. | Intramolecular H-bond in cell. | ≈ 6715 | ||
6 | 6595 | Not assigned | ||
7 | 6450 | 1st OT O–H str. | Crystalline regions in CI, O(3)-H(3)…O(5) intrachain H-bond, crystalline cell. | 6460 |
1st OT O–H str. | Crystalline regions in CI, O(3)-H(3)…O(5) intrachain H-bond, crystalline cell. | 6334 | ||
8 | 6290 | 1st OT O–H str. | Crystalline cell. II | 6307–6267 |
Strong O(2)-H(2)…O(6) of cell. | 6300–6295 | |||
Crystalline region in cell. | 6281 | |||
9 | 6120 | Not assigned | ||
10 | 6012–5980 | 1st OT O–H str. | Hemi. | 6003 |
1st OT Carm–H str. | Lig. | 5980, 5974, 5963, 5978 | ||
11 | 5902–5885 | 1st OT O–H str. | – | 5900 |
1st OT C–H str. | Lig. | 5890 | ||
1st OT C–H str. | Cell. | 5872 | ||
1st OT O–H str. | Hemi. | 5865 | ||
12 | 5807 − 5803 | 1st OT O–H str. | Lig./hemi./cell. | 5814, 5816 |
Hemi. | 5800 | |||
Lig. | 5795 | |||
13 | 5738 | Not assigned | ||
14 | 5475 | O–H str. + 2nd OT C–O | Cell. | 5495 |
O–H str. + 2nd OT C–O | Semi crystalline or crystalline region in cell. | 5464 | ||
15 | 5228–5215 | 2nd OT C = O str. | Hemi. | 5245, 5236 |
O–H asym. str. + O–H def. of water | Water | 5220–5150 | ||
16 | 4414–4402 | O–H str. + C–O str. | Lig. | 4411 |
O-–H str. + C–O str. | Cell. | 4405 | ||
C–H2 str. + C–H2 def. | Cell./hemi. | 4404 | ||
C–H str. + C–H def. | Hemi. | 4401 | ||
O–H str. + C–C str. And/or C–H str. +C–H def. | Cell. | 4392 | ||
17 | 4287 | C–H str. + C–H def. | Hemi. | 4296–4288 |
C–H str. + C–H def. | Cell./hemi. | 4283 4281 | ||
C–H str. + C–H2 def. | Lig. | 4280 | ||
C–H str. + C–H2 def. | Cell. | 4277 | ||
18 | 4208–4200 | 2nd OT O–H def. | Holo. | 4202 |
Not assigned | Lig. | 4195 |