What absorbs at 3403 cm⁻¹ in an FTIR spectrum?
A band near 3403 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 5 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 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
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
“4 (c), a broad absorption peak of O-H stretching at 3403 has been cm-1.”
Solid polymer electrolyte production from 2-hydroxyethyl cellulose: Effect of NH4NO3 composition on its structural properties DOI: 10.1016/j.carbpol.2017.02.033 -
置信度 1.0
“cm-1), with a stretch of 0.01 AU occurring only at 3403 cm-1, thus indicating a loss of H 2O due to neat castor oil, where the beginning and end absorbance values were 0.00 AU (3982 Consequently, an increase in water in its structure, an ex”
Montenegro 等 - 2023 - Enzymatic and Synthetic Routes of Castor Oil Epoxi DOI: 10.3390/polym15112477 -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Przybylski 等 - 2008 - ESI MS, spectroscopic and semiempirical characteri DOI: 10.1016/j.molstruc.2007.07.039 -
Hydroxyl (O-H) 置信度 1.0
“P-ISSN: 2320-5148 cm-1 The peak at 3403.16 arises due to the O-H GC-MS Analysis: GC-MS chromatogram for”
Raubbin 等 - 2020 - HPLC, FTIR AND GC-MS ANALYSIS OF ETHYL ACETATE EXT DOI: 10.13040/IJPSR.0975-8232.11(8).3953-59 -
Hydroxyl (O-H) 置信度 1.0
“Loading of Flavonoid into Magnetite MNPs The FTIR spectrum (Figure 6A,B) of quercetin detected OH group stretching at 3403 and 3328 cm-1.”
The Fine-Tuned Release of Antioxidant from Superparamagnetic Nanocarriers under the Combination of Stationary and Alternating Magnetic Fields DOI: 10.3390/antiox10081212
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