What absorbs at 1787 cm⁻¹ in an FTIR spectrum?
A band near 1787 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 2 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Ester | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
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
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Chlorine confiance 1,0
“For all the matrices (CS:CL-CNC7:3-50%-AgNPs), new bands have appeared (1642 cm-1 and 1787 cm-1) showing a better interaction in the order of CL-WE-AgNPs rate: 5%, 10%, 40%, 50%, to 20%.”
Part B: Improvement of the Optical Properties of Cellulose Nanocrystals Reinforced Thermoplastic Starch Bio-Composite Films by Ex Situ Incorporation of Green Silver Nanoparticles from Chaetomorpha linum DOI: 10.3390/polym15092148 -
Carbonyl (C=O) confiance 1,0
“In the cm-1 case of f-MWNT 9, an ester carbonyl band at 1787 emerged due to an ester group on its”
Zhang 和 Yan - 2010 - Analytical strategies for characterizing the surfa DOI: 10.1007/s00216-009-2996-1.
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