What absorbs at 2361 cm⁻¹ in an FTIR spectrum?
A band near 2361 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 5 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Carbohydrate | 1 | 1 | 0.7 |
| Ester | 1 | 1 | 0.7 |
| Nitrile | 1 | 1 | 0.5 |
| Hydrogen bond | 1 | 0 | 0.9 |
| Hydroxyl (O-H) | 1 | 0 | 0.6 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
confidence 0.9
“Explicit assignment: 'O=C=O stretching bonds stretch at 2361'”
Kiran 等 - 2023 - Effect of protein-based nanoencapsulation on viabi DOI: 10.1080/10942912.2023.2228514 -
confidence 0.9
“sharp peaks characteristics of epoxy resin”
Prabhakaran 等 - 2022 - Biodegradation behaviour of green composite sandwi DOI: 10.1177/09673911221103602 -
confidence 0.8
“New signal attributed to electrostatic interactions.”
Ashrafi 等 - 2019 - Mentha piperita essential oils loaded in a chitosa DOI: 10.1016/j.carbpol.2019.02.018 -
Ester confidence 0.7
“absorption peaks of esters and polysaccharides appeared at 2361”
Tang 等 - 2023 - Structural equation model was used to evaluate the DOI: 10.1098/rsos.221570 -
Nitrile confidence 0.5
“Text: 'could be due to the nitrile'”
Fegousse 等 - 2019 - Pineapple Bark Performance in Dyes Adsorption Opt DOI: 10.1155/2019/3017163
Have a spectrum with this band?
Upload your FTIR spectrum and get a full interpretation report — peak assignments with literature citations, library matches, and a confidence-rated evidence chain — in seconds.
Interpret my spectrum