What absorbs at 3439 cm⁻¹ in an FTIR spectrum?
A band near 3439 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 8 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) | 8 | 7 | 1.0 |
| N h | 2 | 2 | 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
-
Hydroxyl (O-H) 置信度 1.0
“Explicit assignment: 'absorption at 3439 is stretching vibration of -OH'”
Chen 等 - 2011 - Structural features and bioactivities of the chito DOI: 10.1016/j.ijbiomac.2011.06.009 -
N h 置信度 0.9
“Explicit assignment: '3439 (N-H and O-H stretching vibration)'.”
Li 等 - 2013 - Synthesis, Characterization, and Antibacterial Act DOI: 10.3390/md11051534 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'peaks at 3439, 2925 can be ascribed to the O H stretching'”
Moradkhani 等 - 2020 - Phosphorization of exfoliated graphite for develop DOI: 10.1016/j.jmrt.2020.04.085 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'stretching modes of the O-H bond'”
Ghorbani-Choghamarani 等 - 2022 - Efficient biodiesel production from oleic and palm DOI: 10.1038/s41598-022-14341-4 -
Hydroxyl (O-H) 置信度 0.9
“stretching vibration of -OH”
Shen 等 - 2018 - Efficient Adsorption of Pb(II) from Aqueous Soluti DOI: 10.3390/polym10121383 -
N h 置信度 0.9
“Related to the bending bonds of polyallylamine.”
Varshosaz 等 - 2016 - Luteinizing hormone-releasing hormone targeted pol DOI: 10.1049/iet-nbt.2015.0056 -
置信度 0.9
“Explicitly assigned to dimer.”
Zischang 等 - 2011 - Communication Where does the first water molecule DOI: 10.1063/1.3624841 -
置信度 0.8
“Distinctive broad band observed at 3439 cm⁻¹.”
Akinyemi 等 - 2019 - Influence of water repellent chemical additive and DOI: 10.1016/j.heliyon.2019.
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