What absorbs at 2797 cm⁻¹ in an FTIR spectrum?
A band near 2797 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 2 cited sources
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1.0 |
| Aldehyde (CHO) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
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Alkyl C-H 信心 1.0
“cm-1, All spectra shows bands at 2940, 2856/2858, and 2797 which are characteristic All spectra shows bands at 2940, 2856/2858, and 2797 cm-1, which are characteristic of C-H stretching vibrations [40].”
Hybrid Sol–Gel Matrices Doped with Colorimetric/Fluorimetric Imidazole Derivatives "2279 DOI: 10.3390/nano11123401 -
Alkyl C-H 信心 1.0
“These bands are accompanied by four others at 2822, 2797, 2732, and 2704 cm-1 assigned to C-H vibrations in H-C=O of aldehyde adsorbed on Lewis acidic centers (the pair at 2822 and 2797 cm-1 from symmetric and asymmetric stretching vibratio”
Activation of Ethanol Transformation on Copper-Containing SBA-15 and MnSBA-15 Catalysts by the Presence of Oxygen in the Reaction Mixture DOI: 10.3390/ijms24032252
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