What absorbs at 2838 cm⁻¹ in an FTIR spectrum?
A band near 2838 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 4 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
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
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Alkyl C-H confiance 1,0
“s ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi cm-1 (cid:7) (cid:8)2 The small bands at 2838 and 2900 are due to C-H”
Effect of polyethylene glycol and propyltrimethoxysilane on structural and optical properties of zinc oxide nanoparticles synthesized by sol–gel process DOI: 10.1007/s40094-018-0303-2 -
Hydroxyl (O-H) confiance 1,0
“cm-1, For the spectrum of free eugenol, a characteristic band is observed around 3462 referring to the O-H cm-1 bond in 2838 the absorption peak corresponds to the stretching of the C-H bond.”
Bruckmann 等 - 2022 - Synthesis, Characterization, and Biological Activi DOI: 10.21203/rs.3.rs-1025029/v1 -
Alkyl C-H confiance 1,0
“The bands at 1, cm-1 2837.83 are attributed to asymmetric and symmetric stretching vibration of C-H respectively.”
Nadour 等 - 2017 - Effects of Methylcellulose on the Properties and M DOI: 10.1590/1980-5373-MR-2016-0544 -
Alkyl C-H confiance 1,0
“in aromatic and aliphatic structure, and the bands at 2926 SSF process concentrated the lignin in both fermentation 2838cm-1 and were due to a C-H vibration sketch in the”
Santos 等 - 2015 - Evaluating Lignin-Rich Residues from Biochemical E DOI: 10.1155/2015/314891
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