What absorbs at 3536 cm⁻¹ in an FTIR spectrum?
A band near 3536 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 |
|---|---|---|---|
| Water (H2O) | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
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confidence 1.0
“The DFT model also calculates modes at containing two intense modes in this region at 1471 and N-H O-H cm-1 cm-1 cm-1 3536 and 3759 due to and stretching 11B 10B 1391 for and at 1513 and 1430 for boric motions,respectively.AsobservedinFigur”
Brewer 等 - 2004 - Infrared detection of a phenylboronic acid termina DOI: 10.1021/la035037m -
Hydroxyl (O-H) confidence 1.0
“LLM confirmed rule peak-group candidate”
Chiral Tartaric Acid Improves Fracture Toughness of Bioactive Brushite–Collagen Bone Cements DOI: 10.1021/acsabm.0c00555
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