What absorbs at 3338 cm⁻¹ in an FTIR spectrum?
A band near 3338 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) | 4 | 4 | 0,9 |
| Carbohydrate | 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
-
Carbohydrate confiance 0,9
“Text states 'wide absorptive peak at 3338 which also demonstrates that cellulose-I and cellulose-II are present'.”
Bian 等 - 2021 - Crystalline Structure Analysis of All-cellulose Na DOI: 10.1007/s10570-017-1259-0 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment in text.”
Rizvi 等 - 2022 - Synthesis and Characterization of Carboxymethyl Ch DOI: 10.3390/gels8010055 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: 'OH functional groups in the absorption area of 3338'”
Tristantini 和 Yunan - 2018 - Advanced characterization of microbeads replacemen DOI: 10.1051/e3sconf/20186704045 -
Hydroxyl (O-H) confiance 0,9
“broad peak corresponding to -OH stretching”
Wang 等 - 2023 - Preparation of metal-organic framework combined wi DOI: 10.1039/d3ra01777j -
Hydroxyl (O-H) confiance 0,8
“Explicit assignment: peak intensity at 3338 cm-1 mentioned in same context.”
Rahman 等 - 2015 - Synthesis of Cotton from Tossa Jute Fiber and Comp DOI: 10.1155/2015/470928 -
confiance 0,8
“Explicit assignment in text: 'peaks were present at 3337.90' and context mentions H stretching.”
Sarfraz 等 - 2015 - Fabrication and Evaluation of Rosuvastatin Calcium DOI: 10.4314/tjpr.v14i11.2 -
confiance 0,8
“Text: '3338cm-1 = HBI' and context mentions β-glycosidic bonds.”
Singh 等 - 2021 - Biological Characterization and Instrumental Analy DOI: 10.3390/su13010245
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