What absorbs at 832 cm⁻¹ in an FTIR spectrum?
A band near 832 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 |
| Nitrile | 1 | 1 | 1.0 |
| C-S single bond | 1 | 0 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Nitrile confidence 1.0
“49 C≡N stretch (831.5 and stretch (2278 The C-H stretching fundamental mode of 50”
Blue-Shifted Hydrogen Bonding in the Gas Phase CH/D3CN●●●HCCl3 Complexes DOI: 10.1021/acs.jpca.8b12200 -
Alkyl C-H confidence 1.0
“23 The values of the number of binding sites (n) and the assocm(cid:1)1 licensed C]O indicates stretching and absorption peaks at 832 uorescence on ciation constant K can be calculated from the a C-H correspond to bending.”
Multi-spectroscopic monitoring of molecular interactions between an amino acid-functionalized ionic liquid and potential anti-Alzheimer's drugs DOI: 10.1039/d0ra06323a -
Hydroxyl (O-H) confidence 1.0
“The O-H 1075 groups produce a moderately strong band which appears 832 more marked in the gum than in cellulose: it is characterized 𝛿 735/725 725 735/725 rockCH2”
Invernizzi 等 - 2018 - Mid and Near-Infrared Reflection Spectral Database DOI: 10.1155/2018/7823248 -
Alkyl C-H confidence 1.0
“C-H bending vibration was associated with peaks at 832, cm-1.”
Mansour 等 - 2022 - Green Synthesis of Zinc Oxide Nanoparticles Using DOI: 10.3390/ma15155169
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