What absorbs at 2887 cm⁻¹ in an FTIR spectrum?
A band near 2887 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 6 cited sources
Moguće dodjele funkcionalnih skupina
| Funkcionalna skupina | Potporni dokazi | Citirani izvori | Najveća pouzdanost |
|---|---|---|---|
| Alkyl C-H | 5 | 4 | 1,0 |
| Methyl | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
Rangiranje odražava akumulirane literaturne dokaze, a ne jedno autoritativno pravilo. Uvijek provjerite u kontekstu vašeg uzorka.
Literatura iza ovih dodjela
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Alkyl C-H pouzdanost 1,0
“cm´1, for the OH group of pure PHB appears between 3200 and 4000 but the broad band of the OH The stretching peaks at 1452, 1379, 1223, and 2887 cm-1 correspond to the methyl group.”
Influence of Electrospinning Parameters on Fiber Diameter and Mechanical Properties of Poly(3-Hydroxybutyrate) (PHB) and Polyanilines (PANI) Blends DOI: 10.3390/polym8030097 -
Carbohydrate pouzdanost 1,0
“4000 3500 3000 2500 2000 1500 1000 stronger hydrogen bonding could be concluded from the double (cm-1) Wave Number 2919cm-1 2887cm-1 999cm-1 992cm-1 peaks at to and to in nanocomposites samples when compared with pure starch (Ding, Ainswort”
Glycerol/starch/Na+-montmorillonite nanocomposites: A XRD, FTIR, DSC and 1H NMR study DOI: 10.1016/j.carbpol.2010.10.018 -
Alkyl C-H pouzdanost 1,0
“Instead, the large cm-1 vibration band located at 2887 and corresponding to the C-H stretching from the aliphatic chain showed a decrease in intensity during laser irradiation.”
Spectroscopic Characterization of Emulsions Generated with a New Laser-Assisted Device DOI: 10.3390/molecules25071729 -
Hydroxyl (O-H) pouzdanost 1,0
“The H-O-H stretching vibrations of a collection of water molecules engaged in crystallization are restretching vibrations of a collection of water molecules engaged in crystallization are stretching vibrations of a collection of water molec”
Synthesis and Characterization of New Composite Materials Based on Magnesium Phosphate Cement for Fluoride Retention DOI: 10.3390/ma16020718 -
Alkyl C-H pouzdanost 0,8
“Intense spectra in group 2887-2925 attributed to CH2/CH3.”
Potato Starch Utilization in Ecological Loose-Fill Packaging Materials—Sustainability and Characterization DOI: 10.3390/ma13061390 -
Alkyl C-H pouzdanost 0,7
“Context: C-H stretching at three frequencies.”
Alghamdi 等 - 2021 - Effects of various media on micellization, adsorpt DOI: 10.1098/rsos.211527
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