What absorbs at 3337 cm⁻¹ in an FTIR spectrum?
A band near 3337 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 7 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Hydroxyl (O-H) | 8 | 6 | 1,0 |
| Protein | 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
-
Hydroxyl (O-H) confiance 1,0
“Explicitly stated: 'peak at 3337 ... assigned to the hydroxyl functional groups (O-H)'”
Muvhiiwa 等 - 2019 - Study of biochar from pyrolysis and gasification o DOI: 10.1016/j.jece.2019.103391 -
Hydroxyl (O-H) confiance 0,9
“Attributed to -OH stretching.”
Kumar 等 - 2022 - In-situ Production and Collection of Bacterial Cel DOI: 10.1080/15440478.2020.1870638 -
Protein confiance 0,9
“Text states strong peaks indicate proteins were capping and stabilization molecules.”
Lateef 等 - 2016 - Biogenic synthesis of silver nanoparticles using a DOI: 10.1016/j.jtusci.2015.10.010 -
Hydroxyl (O-H) confiance 0,9
“O-H stretching”
Azubuike 等 - 2020 - Evaluation of super-disintegrant potential of acid DOI: 10.4314/tjpr.v19i3.1 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: 'O-H in the absorption area of 3337'”
Tristantini 和 Yunan - 2018 - Advanced characterization of microbeads replacemen DOI: 10.1051/e3sconf/20186704045 -
Hydroxyl (O-H) confiance 0,7
“Auto-peaks at 3337 cm-1.”
Bao 等 - 2017 - Real-time tracking the Li+-ion transition behavior DOI: 10.1038/srep45921 -
Hydroxyl (O-H) confiance 0,7
“Molecular stretch OH.”
Fardiyah 等 - 2018 - Fluorescence Analysis of Andrographis paniculata L DOI: 10.1063/1.5082422
Avez-vous un spectre avec cette bande ?
Téléchargez votre spectre FTIR et obtenez un rapport d＇interprétation complet — attributions de pics avec citations bibliographiques, correspondances de bibliothèque et une chaîne de preuves avec évaluation de la confiance — en quelques secondes.
Interpréter mon spectre