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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 0.9 |
| Carbohydrate | 1 | 1 | 0.9 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Carbohydrate 置信度 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) 置信度 0.9
“Explicit assignment in text.”
Rizvi 等 - 2022 - Synthesis and Characterization of Carboxymethyl Ch DOI: 10.3390/gels8010055 -
Hydroxyl (O-H) 置信度 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) 置信度 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) 置信度 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 -
置信度 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 -
置信度 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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