What absorbs at 2855 cm⁻¹ in an FTIR spectrum?
A band near 2855 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 | 21 | 19 | 1,0 |
| Methyl | 3 | 3 | 0,9 |
| Silicon carbon | 1 | 1 | 0,95 |
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
“stretching vibration of C-H”
Zhao 等 - 2015 - Evaluation of Oil Yield of Oil Shale by Infrared S DOI: 10.1007/s40242-015-4364-3 -
Alkyl C-H confiance 1,0
“Assigned to stretching vibration of -CH in cellulose, hemicellulose and lignin.”
Chen 等 - 2020 - The Degradation and Repolymerization Analysis on S DOI: 10.3390/polym12102337 -
Alkyl C-H confiance 1,0
“Explicit assignment in text”
Mady 和 Allam - 2012 - The influence of low power microwave on the proper DOI: 10.1016/j.ejmp.2011.02.003 -
confiance 0,95
“Explicit assignment: 'C-H stretching in -CH3 and -CH2 at 2855'”
Dzurendova 等 - 2021 - Assessment of Biotechnologically Important Filamen DOI: 10.3390/ijms -
Alkyl C-H confiance 0,95
“Explicit assignment in text.”
Lando 等 - 2017 - UV-Surface Treatment of Fungal Resistant Polyether DOI: 10.3390/ijms18071536 -
Silicon carbon confiance 0,95
“Explicit assignment: Absorption band at 2855 cm-1 was assigned to the -Si-CH groups.”
You 等 - 2019 - An Effective, Economical and Ultra-Fast Method for DOI: 10.3390/polym11060963 -
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
“Explicitly stated 'their symmetrical stretching occurs at 2855' referring to methyl and methylene groups.”
Hirzin 等 - 2015 - Optimizing the usability of unwanted latex yield b DOI: 10.1016/j.indcrop.2015.05.078
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