What absorbs at 1737 cm⁻¹ in an FTIR spectrum?
A band near 1737 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 |
|---|---|---|---|
| Carbonyl (C=O) | 12 | 10 | 1,0 |
| Carboxyl (COOH) | 3 | 3 | 0,9 |
| Ester | 2 | 2 | 0,9 |
| Lipid | 2 | 1 | 0,9 |
| Acetyl | 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
-
Carbonyl (C=O) confiance 1,0
“Explicit assignment in text.”
Caliskan 等 - 2022 - Investigation of the Side Chain Effect on Gas and DOI: 10.3390/polym14010119 -
Carbonyl (C=O) confiance 0,95
“Text: 'extra peak at 1737 cm-1 attributed to carbonyl group'”
de Menezes 等 - 2009 - Extrusion and characterization of functionalized c DOI: 10.1016/j.polymer.2009.07.038 -
Carboxyl (COOH) confiance 0,9
“Attributed to carboxylic (C=O) groups on chitosan spectrum.”
Ashrafi 等 - 2019 - Mentha piperita essential oils loaded in a chitosa DOI: 10.1016/j.carbpol.2019.02.018 -
confiance 0,9
“Similar assignment for PBA.”
Brewer 等 - 2004 - Infrared detection of a phenylboronic acid termina DOI: 10.1021/la035037m -
Carboxyl (COOH) confiance 0,9
“Text: 'band at 1737 that is assigned to C=O stretching of COOH group'”
Miletic 等 - 2020 - Oxidized humic acids from the soil of heat power p DOI: 10.2298/JSC190726099M -
Acetyl confiance 0,9
“Peak assigned to acetylation.”
Song 等 - 2020 - Acetylated Polysaccharides From Pleurotus geestera DOI: 10.3390/ijms21082810 -
Carbonyl (C=O) confiance 0,9
“Explicit assignment in text.”
Chen 等 - 2020 - Synthesis of a Novel Bio-Oil-Based Hyperbranched E DOI: 10.1021/acsomega.0c00119 -
Carbonyl (C=O) confiance 0,9
“Explicit assignment in text: 'carbonyl group vibrations at 790 and 1737'”
El-Naggar 等 - 2023 - Impact of ZnSMn on the Structure, Optical, and El DOI: 10.3390/polym15092091
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