What absorbs at 3367 cm⁻¹ in an FTIR spectrum?
A band near 3367 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 2 | 1.0 |
| N h | 3 | 3 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Hydroxyl (O-H) confidence 1.0
“Text: 'bands at 3629 and 3367 ... stretching vibrations of O-H and N-H bonds'”
Kluczka 等 - 2018 - Boron Removal by Adsorption on Cobalt(II) Doped Ch DOI: 10.1007/s10924-017-1099-x -
N h confidence 0.9
“N-H characteristic peak”
Zhu 等 - 2022 - Synthesis of Covalent Organic Frameworks (COFs)-Na DOI: 10.3390/polym14153158 -
Hydroxyl (O-H) confidence 0.9
“Strong absorption due to hydroxy groups in biomass components.”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345 -
N h confidence 0.8
“N-H stretching vibrations of aliphatic primary amines.”
Markovic 等 - 2023 - Structural, optical, and bioimaging characterizati DOI: 10.3762/bjnano.14.17
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