What absorbs at 1574 cm⁻¹ in an FTIR spectrum?
A band near 1574 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 4 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 |
|---|---|---|---|
| Alkene (C=C) | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Amine primary | 1 | 1 | 1.0 |
| Alkyl C-H | 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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Alkyl C-H 置信度 1.0
“absorption peaks of sugars, and absorptions at 1574 and 1412 were the characteristics of C-H cm-1 cm-1 cmat 1640 was due to C=O (-COOH) stretching vibration, which was the proof of the presence of 1 vibration, respectively [32].”
Song 等 - 2020 - Acetylated Polysaccharides From Pleurotus geestera DOI: 10.3390/ijms21082810 -
Alkene (C=C) 置信度 1.0
“cm-1, At 1574.38 peaks were found that corresponded to the involvement of alkenes (-C=Cstretch).”
The Nutritional Quality and Structural Analysis of Black Soldier Fly Larvae Flour before and after Defatting DOI: 10.3390/insects13020168 -
Alkene (C=C) 置信度 1.0
“Two other bands, 1574 and 1513 were observed for the mixed mode of the C=O and C=C stretching vibrations, these vibrations were calculated at 1628 cm-1 and 1620 respectively.”
Density Functional Theory and Molecular Docking Investigations of the Chemical and Antibacterial Activities for 1-(4-Hydroxyphenyl)-3-phenylprop-2-en-1-one DOI: 10.3390/molecules26123631 -
Amine primary 置信度 1.0
“2 (spectrum h) shows characteristic bands at 3460.4 and 3363.5 cm-1 (NH2 stretching), 1662.8 cm-1 (C=O cm-1 p-Aminobenzoic acid (spectrum h) shows characteristic bands at 3460.4 and 3363.5 stretching), 1624.3 cm-1 (NH2 in plane deformation)”
Garbacz 和 Wesolowski - 2018 - DSC, FTIR and Raman Spectroscopy Coupled with Mult DOI: 10.3390/molecules23092136
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