What absorbs at 1438 cm⁻¹ in an FTIR spectrum?
A band near 1438 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 5 cited sources
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Methyl | 1 | 1 | 0,9 |
| Carbonate | 1 | 1 | 0,9 |
| C-O single bond | 1 | 1 | 0,9 |
| Ester | 1 | 1 | 0,8 |
| Carboxyl (COOH) | 1 | 1 | 0,8 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
-
C-O single bond förtroende 0,9
“Explicit assignment: peak at 1438 due to C-O stretching.”
Li 等 - 2020 - Investigating the effect of carbon nanotube on ear DOI: 10.1016/j.cemconcomp.2020.103513 -
Carbonate förtroende 0,9
“Text: 'low intensity band at 1438 cm-1 attributed to carbonate'”
D'Elia 等 - 2020 - Effect of Alkali Concentration on the Activation o DOI: 10.3390/app10072203 -
Methyl förtroende 0,9
“Explicit: 'methyl group present at ... 1438'”
Matwijczuk 等 - 2018 - Spectroscopic studies of the quality of WCO (Waste DOI: 10.1051/bioconf/20181002019 -
Carboxyl (COOH) förtroende 0,8
“Mentioned as 'carboxylic bands intensities (i.e. 1535cm-1 and 1438cm-1)'”
Litke 等 - 2019 - Interfacial charge transfer in Pt-loaded TiO2 P25 DOI: 10.1016/j.jphotochem.2018.10.023 -
Ester förtroende 0,8
“Peak at 1438 cm-1 associated with C-H bending of esters.”
Tarapoulouzi 等 - 2020 - Chemometric analysis combined with FTIR spectrosco DOI: 10.1002/fsn3.1603
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