FTIR峰解读
What absorbs at 4000 cm⁻¹ in an FTIR spectrum?
A band near 4000 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 | 3 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.7 |
| Water (H2O) | 1 | 1 | 0.7 |
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
-
Hydroxyl (O-H) 置信度 0.9
“Text: 'hydroxyl stretching region (2400-4000 cm-1)'”
Shamim 和 Dana - 2016 - Dependence of bonding interactions in Layered Doub DOI: 10.1016/j.molstruc.2016.06.045 -
置信度 0.9
“Snippet states 'stretching of O-H bonds' for band 4000-3500 cm-1.”
Jameel 等 - 2017 - Heavy fuel oil pyrolysis and combustion Kinetics DOI: 10.1016/j.jaap.2017.08.008 -
Carboxyl (COOH) 置信度 0.9
“assigned to O-H stretching of -COOH in rGO”
Morsy 等 - 2022 - Preparation, investigation, and temperature sensin DOI: 10.1007/s10854-022-09247-w -
Hydroxyl (O-H) 置信度 0.8
“Hydroxyl vibrations range”
Shatti 等 - 2022 - Co-precipitation method for the preparation of Mn- DOI: 10.15251/JOR.2022.184.473 -
Water (H2O) 置信度 0.7
“Typical signals of water”
Ciprioti 等 - 2018 - Thermal Behavior and Structural Study of SiO2Poly DOI: 10.3390/ma11020275 -
Hydroxyl (O-H) 置信度 0.7
“Part of the hydroxyl stretch region (3000-4000 cm-1).”
Meshkova 等 - 2018 - The role of the gradient film properties in silica DOI: 10.1002/ppap.201700093 -
Amide 置信度 0.7
“Text: 'amide band peaks between 400 and 4000'”
Salomane 等 - 2021 - Iso-mukaadial acetate and ursolic acid acetate inh DOI: 10.1007/s12192-021-01212-6
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