What absorbs at 3482 cm⁻¹ in an FTIR spectrum?
A band near 3482 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) | 3 | 3 | 1.0 |
| Alkyl C-H | 1 | 1 | 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
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Water (H2O) 置信度 1.0
“In the spectrum, investigated for the state of the membrane that shows spectrum cm-1 are assigned to the OH the absorptions at 3482 and 1627 a of Figure 1, in which free water exists in excess over RSO 3H, stretching and deformation vibrati”
Iwamoto 等 - 2002 - Water in perfluorinated, sulfonic acid Nafion memb DOI: 10.1021/jp013709g -
Hydroxyl (O-H) 置信度 1.0
“cm-1, Tween's FTIR spectrum highlights hydrogen-bound OH stretching to 3482 cm-1, 2863 and 2921 which can be attributed to asymmetric and symmetrical methylene cm-1 stretching vibrations at the specific carbonyl group of 1734 from R-CO-OR,”
Formulation and Characterization of Alginate-Based Membranes for the Potential Transdermal Delivery of Methotrexate DOI: 10.3390/polym -
Alkyl C-H 置信度 1.0
“BSG-linked spectroscopic analysis showed an OH group at 3481.51 cm-1, C-H in CH at 2 2995.45 cm-1, COO (asymmetric and symmetric stretching) due to uronic acid at 1689.64 FTIR spectra of BSG, BSG-co-poly (AA) hydrogel and captopril are show”
Ghumman 等 - 2022 - Synthesis of pH-Sensitive Cross-Linked Basil Seed DOI: 10.3390/gels8050291 -
Hydroxyl (O-H) 置信度 1.0
“The broad IR cm-1 cm-1 band centered at 3482 is attributed to phenolic O-H stretch H-bonded.”
Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy: An analytical technique to understand therapeutic responses at the molecular level DOI: 10.1038/srep16649 -
Hydroxyl (O-H) 置信度 1.0
“(cm-1) Observed vibrational bands Assignments 3482 O-H stretching”
Kannan 等 - 2023 - Exploration of third order nonlinear optical featu DOI: 10.15251/DJNB.2023.181.367
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