FTIR峰解读
What absorbs at 3321 cm⁻¹ in an FTIR spectrum?
A band near 3321 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 4 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 |
|---|---|---|---|
| N h | 2 | 2 | 0.95 |
| Hydroxyl (O-H) | 2 | 2 | 0.9 |
| Amine primary | 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
-
N h 置信度 0.95
“Explicit assignment: 'N-H cm-1 stretching peak at 3321'.”
Nurubhasha 等 - 2019 - Extraction and characterization of collagen from t DOI: 10.1007/s10068-019-00601-z -
Hydroxyl (O-H) 置信度 0.9
“attributed to O-H”
Elias 等 - 2019 - Nanocellulose-silica polyethersulfone hybrid compo DOI: 10.1063/1.5125521 -
Hydroxyl (O-H) 置信度 0.9
“Broad absorption band assigned to -OH.”
Hanif 和 Zaman - 2017 - Thiolation of arabinoxylan and its application in DOI: 10.1186/s40199-017-0172-2 -
N h 置信度 0.9
“N-H stretching band of -NH2 group appeared at 3321.18 cm-1.”
Batool 等 - 2019 - USE OF GLUTARIC ACID TO IMPROVE THE SOLUBILITY AND DOI: 10.32383/appdr/94246
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