What absorbs at 2918 cm⁻¹ in an FTIR spectrum?
A band near 2918 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 | 20 | 19 | 1,0 |
| Methyl | 2 | 2 | 0,9 |
| Lipid | 2 | 2 | 0,7 |
| Hydroxyl (O-H) | 2 | 1 | 0,7 |
| C-O single bond | 1 | 1 | 0,8 |
| Carbohydrate | 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
-
Alkyl C-H confiance 1,0
“Explicit assignment in text”
Hadia 等 - 2022 - Conversion of Sewage Water into H-2 Gas Fuel Using DOI: 10.3390/polym14112148 -
Alkyl C-H confiance 1,0
“Explicit assignment: antisymmetric stretching 2917.66 S CH2”
El-Rafie 等 - 2023 - Enhancement of cytotoxic and antioxidant activitie DOI: 10.1007/s00449-022-02833-6 -
Alkyl C-H confiance 1,0
“Text: 'methylene CH ... peaks at 2850 and 2918'”
Lopez-Rodriguez 等 - 2023 - Dyeing with Hydrotalcite Hybrid Nanoclays and Disp DOI: 10.3390/ijms24010808 -
Alkyl C-H confiance 1,0
“Corresponded to C-H stretches of -CH and -CH2 units.”
Luo 等 - 2019 - A Mechanism for the Adsorption of 2-(Hexadecanoyla DOI: 10.3390/min9010015 -
Alkyl C-H confiance 1,0
“explicit assignment in text”
Nath 等 - 2021 - A novel double-side welding approach for friction DOI: 10.1007/s00170-021-06602-9 -
Alkyl C-H confiance 1,0
“Explicit assignment in text: 'attributed to C-H stretching vibrations'”
Tang 等 - 2021 - Preparation of Cellulose Nanoparticles from Foliag DOI: 10.3390/ma14164557 -
Alkyl C-H confiance 0,95
“Explicitly assigned as asymmetric mode CH.”
Urbanek 等 - 2020 - PATTERNING OF SELF-ASSEMBLED MONOLAYERS (SAMS) DOI: 10.37904/nanocon.2019.8592 -
Alkyl C-H confiance 0,9
“Explicit assignment in text.”
Kristiawan 等 - 2022 - Glass Powder Additive on Recycled Polypropylene Fi DOI: 10.3390/polym14010005
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