What absorbs at 2150 cm⁻¹ in an FTIR spectrum?
A band near 2150 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 |
|---|---|---|---|
| Carbonate | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Bronsted acid site | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Alkene (C=C) | 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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Alkene (C=C) confiance 1,0
“tracts showed an olefinic peak at 2150 which by Bar and co-workers they synthesized silver Jatropa curcas disappeared in spectrum of shoot and seed extract nanoparticles using seed extract of”
Siraj 等 - 2020 - Biosynthesized silver nanoparticles from shoot and DOI: 10.2306/scienceasia1513-1874.2020.097 -
Water (H2O) confiance 1,0
“within the restricted sampling area illuminated by the IR radiation Upon water sorption, the PVOH spectrum begins to exhibit a duetothefixedaperturesize.Thissuggeststhatthedominantprobroad, symmetric, and relatively weak band centered near”
Time series Fourier transform infrared spectroscopy for characterization of water vapor sorption in hydrophilic and hydrophobic polymeric films DOI: 10.1016/j.saa.2020.119371 -
Bronsted acid site confiance 1,0
“The CO adsorption NMR spectroscopy is a reliable method for the quantification centers.11,47 15Nexperiments shown on the previous section do not give any of Lewis and Brønsted acid The adsorption of indication for these Brønsted acid sites,”
Comparative study of the strongest solid Lewis acids known: ACF and HS-AlF3 DOI: 10.1039/c8dt03279c -
Carbonate confiance 1,0
“The spectra cm-1, recorded on the bluish-green areas exhibited the Raman lines of Prussian blue, observed at 276, 532, 2094, 2150 cm-1 together with lines at 988 and 1050 due to sulphate and carbonate stretching modes of barite, and lead wh”
Hidden colours in stuccowork damaged by fire: A multi-analytical investigation for revealing the original decorative pattern DOI: 10.1016/j.culher.2015.11.002
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