What absorbs at 1367 cm⁻¹ in an FTIR spectrum?
A band near 1367 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 | 0.9 |
| Methyl | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 0 | 0.6 |
| Lignin | 1 | 0 | 0.6 |
| Carbohydrate | 1 | 0 | 0.6 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Methyl confidence 1.0
“symmetric stretch”
Meade 等 - 2007 - Growth substrate induced functional changes elucid DOI: 10.1007/s00216-006-0876-5 -
Alkyl C-H confidence 0.9
“Explicit assignment: CH bend.”
Mahajan 等 - 2017 - Green synthesis of highly stable carbon nanodots a DOI: 10.1049/iet-nbt.2016.0025 -
confidence 0.8
“Text: 'peaks at 1340 ... and 1367'”
Sumathirathne 和 Karunanayake - 2017 - Synthesis of novel porous tannin-phenol-formaldehy DOI: 10.4038/jnsfsr.v45i3.8186 -
Alkyl C-H confidence 0.8
“Assigned to C-H deformation of cellulose and hemicellulose.”
Xiaoping 等 - 2023 - DOI: 10.4067/s0718-221x2023000100413
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