What absorbs at 1376 cm⁻¹ in an FTIR spectrum?
A band near 1376 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 |
|---|---|---|---|
| Methyl | 4 | 4 | 0,9 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 0,6 |
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
“Assigned to CH2 in text.”
Lee 等 - 2023 - Effect of Repeated Contact to Food Simulants on th DOI: 10.3390/polym15010009 -
confiance 0,9
“Explicit assignment: 'band located at 1376 refers to the symmetrical folding of the C-H bond of the methyl groups'”
Gonzaga 等 - 2020 - Chitosan and Agaricus brasiliensis Polysaccharides DOI: 10.21577/0103-5053.20190264 -
Methyl confiance 0,9
“Explicit assignment: 'absorption band of CH3 bend observed at peak with wavelength of 1375.77'.”
Mazlan 等 - 2023 - Evaluation of microplastics isolated from sea cucu DOI: 10.1016/j.heliyon.2023.e16822 -
confiance 0,9
“CH3 symmetric bending assigned to 1376 cm-1 (range 1390-1350).”
Pipintakos 等 - 2020 - Experimental investigation of the oxidative ageing DOI: 10.1016/j.conbuildmat.2020.119702 -
confiance 0,9
“symmetrical strain CH3”
Pires 等 - 2019 - Investigation of degradation of polypropylene in s DOI: 10.1007/s13726-019-00766-8 -
Methyl confiance 0,9
“Explicit assignment: '1376cm-1- CH3'”
Tian 等 - 2019 - Comparison and Analysis of the Performances and Me DOI: 10.1155/2019/5232534 -
Methyl confiance 0,8
“Symmetric deformation of methyl groups.”
Boughrara 等 - 2022 - A facile route to improve compatibilization of low DOI: 10.1016/j.polymdegradstab.2022.110111 -
confiance 0,8
“Listed as expected peak for chondroitin sulphate.”
Mader 等 - 2016 - Investigation of intervertebral disc degeneration DOI: 10.1039/c5fd00160a
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