What absorbs at 2870 cm⁻¹ in an FTIR spectrum?
A band near 2870 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
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 7 | 7 | 0,9 |
| Methyl | 4 | 3 | 0,9 |
| Carbonate | 1 | 1 | 0,9 |
| Methoxy (OCH3) | 1 | 1 | 0,9 |
La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.
Literatura detrás de estas asignaciones
-
Methoxy (OCH3) confianza 0,9
“Explicit: 'characteristic ether and methoxy peaks at 1120 and 2870'”
Cacao 等 - 2013 - High-Resolution, High-Throughput, Positive-Tone Pa DOI: 10.1371/journal.pone.0056835 -
Alkyl C-H confianza 0,9
“FTIR (ATR) ν 2950 and 2870 (aliphatic C-H stretch).”
Amer 等 - 2019 - Elaboration of new modified electrodes (MEs) by el DOI: 10.1016/j.eurpolymj.2018.10.016 -
Methyl confianza 0,9
“Assigned to symmetric CH3 stretch.”
Denbigh 等 - 2017 - Probing the action of a novel anti-leukaemic drug DOI: 10.1038/s41598-017-02069-5 -
confianza 0,9
“Text: '2870, 2960 (Methyl C-H asym./sym. stretch)'”
Drais 和 Hussein - 2022 - Lipid-Polymer Hybrid Nanocarriers for Oral Deliver DOI: 10.34172/apb.2022.081 -
Alkyl C-H confianza 0,9
“Explicit assignment in text.”
Islam 等 - 2019 - In Vitro Enzymatic Digestibility of Glutaraldehyde DOI: 10.3390/molecules24071271 -
confianza 0,9
“Explicit assignment”
Kamari 和 Yusoff - 2019 - N-octyl chitosan derivatives as amphiphilic carrie DOI: 10.1515/chem-2019-0043 -
Methyl confianza 0,9
“Explicit assignment: 'stretch 2870 CH3'.”
Malla-Pradhan 等 - 2022 - Occurrence and Distribution of Microplastics from DOI: 10.1007/s11270-022-05896-z -
confianza 0,9
“O-CH2 signature”
Mattelaer 等 - 2020 - Atomic Layer Deposition of Localized Boronand Hy DOI: 10.1021/acs.chemmater.9b04967
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