What absorbs at 3448 cm⁻¹ in an FTIR spectrum?
A band near 3448 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 8 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Hydroxyl (O-H) | 16 | 15 | 1,0 |
| N h | 5 | 5 | 1,0 |
| Water (H2O) | 2 | 2 | 0,8 |
| Amine primary | 1 | 1 | 0,9 |
| Carboxyl (COOH) | 1 | 1 | 0,8 |
Le classement reflète les preuves bibliographiques accumulées, et non une règle faisant autorité. Confirmez toujours dans le contexte de votre échantillon.
Bibliographie derrière ces attributions
-
N h confiance 1,0
“Explicit assignment in text: 'The absorption peaks at 3447.60 cm-1 (N-H stretching band)'”
Liu 等 - 2018 - Synthesis and characterization of comb-shaped copo DOI: 10.1039/c7ra13255g -
Hydroxyl (O-H) confiance 1,0
“Explicit assignment in text”
Meng 等 - 2021 - Effects of load types and critical molar ratios on DOI: 10.1515/rams-2021-0019 -
Hydroxyl (O-H) confiance 0,9
“Explicit: 'wave number peaks of 3448 ... Hydroxy (OH)'”
Rahim 等 - 2021 - Physicochemical properties of phosphate butyrate a DOI: 10.1088/1755-1315/681/1/012043 -
Hydroxyl (O-H) confiance 0,9
“Explicitly assigned to O-H vibrational mode for pure MC.”
Ahmed 和 Abdullah - 2019 - Preparation and Composition Optimization of PEOMC DOI: 10.3390/polym11050853 -
Hydroxyl (O-H) confiance 0,9
“O-H stretching vibrations overlapped with N-H stretching”
Biswas 等 - 2017 - Facile Preparation of Biocomposite from Prawn Shel DOI: 10.1155/2017/6472131 -
N h confiance 0,9
“Ascribed to N-H and O-H stretching vibrations.”
Han 等 - 2020 - Effects of processing conditions on the properties DOI: 10.1016/j.rser.2017.10.002. -
Hydroxyl (O-H) confiance 0,9
“attributed to O-H and N-H group on DOX”
Liu 等 - 2014 - NIR initiated and pH sensitive single-wall carbon DOI: 10.1039/C3TB21362E. -
Hydroxyl (O-H) confiance 0,9
“Text states ~3448 (O-H stretch).”
Shariare 等 - 2021 - Preparation and Optimization of PEGylated Nano Gra DOI: 10.3390/molecules26051457
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