What absorbs at 2986 cm⁻¹ in an FTIR spectrum?
A band near 2986 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 5 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| N 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
“cm-1 2986 peak is due to the n(C-H) groups.”
Bakan 等 - 2019 - Synthesis, characterization, toxicity and in vivo DOI: 10.1007/s10965-019-1901-7 -
N h confiance 1,0
“groups at 2986 The -NH peak (1586-1611 cm-1) is observed in the L-glutamic acid 2”
Bakan 等 - 2020 - Synthesis, characterization and toxicity assessmen DOI: 10.1002/bip.21333 -
Alkyl C-H confiance 1,0
“cm-1, The FT-IR spectrum of pure AMPS revealed peaks at 2986 representing the C-H cm-1 cm-1 stretching of -CH 2, while two bands at around 1666 and 1612 were due to cm-1 C=O stretching and C=C stretching, respectively [33].”
Synthesis and Characterization of Carboxymethyl Chitosan Nanosponges with Cyclodextrin Blends for Drug Solubility Improvement DOI: 10.3390/gels8010055 -
Hydroxyl (O-H) confiance 1,0
“The positive sign for the cm-1 cm-1 3277.06 (O-H stretching) and 2985.81, 2941.44 coefficient of a (polymer) indicated that the entrapment (C-H stretching).”
Sakhare 等 - 2021 - Studies on Formulation and Evaluation of Eudragit DOI: 10.5530/ijper.55.1s.40 -
Alkyl C-H confiance 1,0
“The spectral peak at 2985.66 revealed C-H stretching of-CH 2.”
Development of β-cyclodextrin/polyvinypyrrolidone-co-poly (2-acrylamide-2-methylpropane sulphonic acid) hybrid nanogels as nano-drug delivery carriers to enhance the solubility of Rosuvastatin: An in vitro and in vivo evaluation DOI: 10.1371/journal.pone.0263026
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