What absorbs at 1270 cm⁻¹ in an FTIR spectrum?
A band near 1270 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 |
|---|---|---|---|
| C-O single bond | 3 | 3 | 1,0 |
| Silicon carbon | 2 | 2 | 0,9 |
| Lignin | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Fluorine (C-F) | 1 | 1 | 1,0 |
| Phenolic | 1 | 1 | 0,9 |
| Alkyl C-H | 1 | 1 | 0,9 |
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
-
C-O single bond confiance 1,0
“Explicit assignment: 'peak at 1270 cm-1' for C-OH.”
Gao 等 - 2017 - In situ ATR-FTIR investigation and theoretical cal DOI: 10.1039/c7ra04587e -
Fluorine (C-F) confiance 1,0
“Explicit assignment in text.”
Sosulin 等 - 2017 - Communication A hydrogen-bonded difluorocarbene c DOI: 10.1063/1.4999772 -
Carboxyl (COOH) confiance 1,0
“Explicit assignment in text.”
Zamri 等 - 2016 - The effectiveness of oil palm trunk waste derived DOI: 10.1063/1.4965073 -
Lignin confiance 1,0
“Text: 'guaiacyl at 1270'”
Zhang 和 Zhou - 2022 - Industrial lignins the potential for efficient re DOI: 10.21203/rs.3.rs-453856/v1 -
Silicon carbon confiance 0,9
“Si-CH stretching”
Chabane 等 - 2009 - Characterization of SiOF thin films deposited by P DOI: 10.4028/www.scientific.net/MSF.609.59 -
Silicon carbon confiance 0,9
“Explicit assignment in text snippet: '1270cm-1 modes of structural groups like Si-CH'”
Das 等 - 2004 - Vibrational spectroscopy characterization of low-d DOI: 10.1016/j.mssp.2004.09.121 -
confiance 0,9
“Text: 'bands in the 1270 cm-1 as coupled NO2 symmetric/C-N stretches'”
Perry 等 - 2010 - Adsorption analysis of nitrophenol isomers on silv DOI: 10.1016/j.jcis.2009.10.053 -
Alkyl C-H confiance 0,9
“Explicit assignment in text”
Ceyhan 等 - 2008 - Analysis of degradation failure of poly L-lactic a DOI: 10.3944/AOTT.2008.284
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