What absorbs at 2970 cm⁻¹ in an FTIR spectrum?
A band near 2970 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 |
|---|---|---|---|
| Alkyl C-H | 4 | 2 | 0,9 |
| Methyl | 1 | 1 | 0,9 |
| Aromatic ring | 1 | 1 | 0,9 |
| Hydroxyl (O-H) | 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
-
Aromatic ring confiance 0,9
“Peak at 2970 cm-1 assigned to aromatic rings.”
Szymanska 等 - 2016 - Preparation and characterization of reactive liqui DOI: 10.1515/polyeng-2014-0393 -
Alkyl C-H confiance 0,9
“Explicitly stated: 'C H stretching, 2970 cm-1'”
Alam 等 - 2023 - Assessment of quality of commercial hand sanitizer DOI: 10.1016/j.mex.2023.102274 -
Methyl confiance 0,9
“Explicit assignment: same sentence as above.”
Alcaraz-Zapata 等 - 2019 - DOI: 10.15446/dyna.v86n208.72019 -
Alkyl C-H confiance 0,9
“Text mentions 'band at 2970 cm-1 is associated with C-H aliphatic'.”
Giraldo 等 - 2022 - Development of a Novel Green Bio-Nanofluid from Sa DOI: 10.3390/pr10061057 -
confiance 0,9
“Explicit assignment: '2970 cm-1 (benzene ring, CH)'”
Korolkov 等 - 2021 - Preparation of Hydrophobic PET Track-Etched Membra DOI: 10.3390/membranes11080637 -
confiance 0,9
“Text: 'bands at 2970 were assigned to C sp3-H str'”
Zhang 等 - 2022 - Facile Synthesis of Microporous Ferrocenyl Polymer DOI: 10.3390/polym14091900 -
confiance 0,8
“Described as steep peak for functional groups.”
Banerjee 等 - 2014 - Thin film encapsulation of nano composites of poly DOI: 10.1039/c4ra10183a -
confiance 0,8
“Saturated C-H groups on PVC chains appeared at 2970-2800 cm-1.”
Abdel-Baset 等 - 2016 - Characterization and Optical and Dielectric Proper DOI: 10.1155/2016/1707018
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