What absorbs at 2050 cm⁻¹ in an FTIR spectrum?
A band near 2050 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 | 4 | 3 | 0,9 |
| Adsorbed carbon monoxide | 2 | 1 | 0,9 |
| Phosphate (PO4) | 1 | 1 | 0,9 |
| Silicon hydride | 1 | 1 | 0,5 |
| Thiocyanate | 1 | 0 | 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 0,9
“Explicit assignment: 'FTIR band at 2050 cm-1 assigned to CO'”
Belhadj 等 - 2017 - Mechanisms of Simultaneous Hydrogen Production and DOI: 10.1021/acscatal.7b01312 -
Phosphate (PO4) confiance 0,9
“Bands between 1850 and 2050 cm-1 correspond to overtones of ν(P=O) vibrations.”
Blanco 等 - 2020 - Acidic Properties of Alkaline-Earth Phosphates Det DOI: 10.1021/acs.jpcc.9b10472 -
Adsorbed carbon monoxide confiance 0,9
“Band between 2050 and cm-1 assigned to linearly adsorbed CO.”
Buso-Rogero 等 - 2014 - Formic acid electrooxidation on thallium-decorated DOI: 10.1039/c4cp00304g -
confiance 0,9
“Explicit assignment in text.”
Sarabia 等 - 2018 - Underpotential deposition of Nickel on platinum si DOI: 10.1016/j.jelechem.2017.11.033 -
C-O single bond confiance 0,9
“Explicit assignment: absorption band at around 2050 cm-1 assignable to CO species.”
Yoshida 等 - 2015 - Influence of Crystallite Size of TiO2 Supports on DOI: 10.1007/s10562-014-1404-4 -
confiance 0,9
“Bands at 1750 and 2050 assignable to CO species.”
Yoshida 等 - 2012 - In situ FTIR study on the formation and adsorption DOI: 10.1039/c2cp23590k -
C-O single bond confiance 0,8
“Positive band at ca. 2050 associated with linearly adsorbed CO.”
Ferre-Vilaplana 等 - 2016 - Cleavage of the C-C Bond in the Ethanol Oxidation DOI: 10.1021/acs.jpcc.6b03117. -
Silicon hydride confiance 0,5
“Part of broad peak between 2050-2010 cm-1.”
Guruvenket 等 - 2011 - Atmospheric Pressure Plasma CVD of Amorphous Hydro DOI: 10.1002/ppap.201100035
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