What absorbs at 2925 cm⁻¹ in an FTIR spectrum?
A band near 2925 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
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| Alkyl C-H | 33 | 31 | 1,0 |
| Methyl | 4 | 4 | 0,95 |
| Hydroxyl (O-H) | 2 | 2 | 0,9 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 0,9 |
| C c single bond | 1 | 1 | 0,7 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
-
Alkyl C-H spolehlivost 1,0
“Explicit assignment in text.”
Mansour 等 - 2017 - Elucidation of penetration enhancement mechanism o DOI: 10.1016/j.saa.2017.05.026 -
Alkyl C-H spolehlivost 1,0
“explicit assignment”
Russo 等 - 2014 - Infrared spectroscopy of some carbon-based materia DOI: 10.1016/j.carbon.2014.03.014 -
Aromatic ring spolehlivost 1,0
“Explicit assignment in text: '2925 (aromatic C-H group stretching and presence of -CH groups)'”
Vamanu 等 - 2018 - In Vitro Human Microbiota Response to Exposure to DOI: 10.3390/nu10050607 -
Alkyl C-H spolehlivost 1,0
“Explicit assignment in text”
Babu 等 - 2022 - Antibacterial, Antioxidant, Larvicidal and Antican DOI: 10.3390/Shikun -
spolehlivost 1,0
“Explicit assignment: 'assigned to ... vasCH2'”
Ducic 等 - 2023 - Monitoring oocyte-based human pluripotency acquisi DOI: 10.1016/j.saa.2023.122713 -
Alkyl C-H spolehlivost 1,0
“Explicit assignment in text: 'band observed at 2925 ... correspond to C-H stretching (aliphatic C-H groups)'”
Prdun 等 - 2021 - Characterization of Bee Pollen Physico-Chemical P DOI: 10.3390/foods10092103 -
Alkyl C-H spolehlivost 1,0
“Text: 'attributed to C-H (alkane) stretching bonds'.”
Wypij 等 - 2022 - Novel Antibacterial, Cytotoxic and Catalytic Activ DOI: 10.4014/jmb.2205.05006 -
Methyl spolehlivost 0,95
“Explicit: 'characteristic peak at 2925 was attributed to -CH3'”
Ding 等 - 2020 - Synthesis and Characterization of Linear Polyisopr DOI: 10.3390/polym12010110
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