FTIR PEAK INTERPRETATION
What absorbs at 3546 cm⁻¹ in an FTIR spectrum?
A band near 3546 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 2 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 2 | 1.0 |
| Phosphorus | 1 | 0 | 1.0 |
| Phosphate (PO4) | 1 | 0 | 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
“LLM confirmed rule peak-group candidate”
Kosendiak 等 - 2019 - Complexes of Glycolic Acid with Nitrogen Isolated DOI: 10.3390/molecules24183245 -
Hydroxyl (O-H) confidence 1.0
“L3 L4 Lornoxicam Chitosan O-H Stretching 3546 3376 3378 3401”
Yadav 和 Urade - 2019 - Formulation and Evaluation of Chitosan Based Trans DOI: 10.5530/ijper.53.1.12
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