What absorbs at 1354 cm⁻¹ in an FTIR spectrum?
A band near 1354 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 4 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Ring structure confidence 1.0
“1381 (0.19) 1362 1378 (0.09) HC g CC asymmetric ring stretch 1354 1345 (0.38)”
Hydrogen Bonding in Human Manganese Superoxide Dismutase Containing 3-Fluorotyrosine DOI: 10.1529/biophysj.105.060616 -
S eq o confidence 1.0
“cm-1 cm-1, C in the ICP nanocomposites, and two bands at 1354 and 1163 which correspond to S=O the stretching in AB 25, are completely absent after adsorption.”
Polyaspartate-Ionene/Na+-Montmorillonite Nanocomposites as Novel Adsorbent for Anionic Dye; Effect of Ionene Structure DOI: 10.3390/polym12122843 -
Alkyl C-H confidence 1.0
“Characteristics peaks were at 1390 (C-H bending), 1354 cm-1”
Swelling Behavior of Polyacrylamide–Cellulose Nanocrystal Hydrogels: Swelling Kinetics, Temperature, and pH Effects DOI: 10.3390/ma12132080 -
Alkyl C-H confidence 1.0
“The cm-1 peak at 1605 can be attributed to the aromatic skeletal and C=O stretch vibrations cm-1 characteristic of lignin, and the peak at 1354 can be assigned to -CH bending [35,38].”
Removal of Methylene Blue from Aqueous Solutions Using a New Natural Lignocellulosic Adsorbent—Raspberry (Rubus idaeus) Leaves Powder DOI: 10.3390/polym14101966
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