What absorbs at 2929 cm⁻¹ in an FTIR spectrum?
A band near 2929 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
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Alkyl C-H | 18 | 18 | 1,0 |
| Methyl | 2 | 2 | 0,9 |
| Lipid | 1 | 1 | 0,9 |
| Thiol | 1 | 1 | 0,9 |
| Hydroxyl (O-H) | 1 | 0 | 0,8 |
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
-
Alkyl C-H confiance 1,0
“Text: 'sharp band at 2929 cm-1 was attributed to C-H bond'”
Liu 等 - 2012 - Modifications of structure and physicochemical pro DOI: 10.1016/j.lwt.2011.10.012 -
Alkyl C-H confiance 1,0
“Explicit assignment: 'band around 2929 was attributed to the C-H stretching'”
Rozman 等 - 2021 - Optimisation of Stingless Bee Honey Nanoemulsions DOI: 10.3390/foods10092133 -
Alkyl C-H confiance 0,9
“Explicit assignment: '2929cm-1 ... a prominent C-H stretching absorption'”
Cheng 等 - 2011 - The Research on the Longitudinal Tensile Strength DOI: 10.4028/www.scientific.net/AMR.183-185.2014 -
Alkyl C-H confiance 0,9
“Text states 'alkane absorption' and 'double peaks in absorbance at 2929 and 2855'.”
Guzman-Morales 等 - 2014 - Estimated contributions of primary and secondary o DOI: 10.1016/j.atmosenv.2013.08.047 -
Alkyl C-H confiance 0,9
“Explicit assignment in text.”
Olukanni 等 - 2019 - Influence of redox mediators and media on methyl r DOI: 10.1007/s42452-019-0668-0 -
Alkyl C-H confiance 0,9
“Explicit assignment in text.”
Yu 等 - 2004 - Imaging molecular chemistry of pioneer corn DOI: 10.1021/jf049291b -
confiance 0,9
“Explicit assignment.”
Afqir 等 - 2018 - Structural, electric and dielectric properties of DOI: 10.2298/PAC1801072A -
Alkyl C-H confiance 0,9
“Band at 2929 cm-1 attributed to symmetrical and asymmetrical stretching of C-H.”
Lopes 等 - 2017 - Preparation and characterization of alginate and g DOI: 10.1590/0001-3765201720170071
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