What absorbs at 1955 cm⁻¹ in an FTIR spectrum?
A band near 1955 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 |
|---|---|---|---|
| C-O single bond | 2 | 1 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
C c single bond confidence 1.0
“CH=CH, C=O, S=O (gliben- ---------- 2683 cm-1 The absorption peaks observed at 2412 and 793 are associated clamide) with C-C, CH, C-O, and OH bending vibrations, while the absorption NH asym stretching and OH 3458, 3295 ---------- cm-1 band”
Delgadillo-Armendariz 等 - 2014 - INTERACTIONS OF CHITOSANGENIPIN HYDROGELS DURING DOI: 10.5935/0100-4042.20140243 -
confidence 1.0
“The fact that the slopes did not signifimonomeric sites and the band centered at 1955 could be due to the Cu2+ cantly change after the addition of the fourth points where the slope presence species with more than one copper atom such as dim”
Yousefzadeh 等 - 2023 - Stepwise conversion of methane to methanol over Cu DOI: 10.3929/ethz-b-000588282
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