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 7 cited sources
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Carboxyl (COOH) | 3 | 3 | 1,0 |
| Alkene (C=C) | 2 | 2 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| Amine primary | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
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Alkyl C-H confiança 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) confiança 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) confiança 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 confiança 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 -
Ring structure confiança 1,0
“Modification of the above Raman peak related phosphodiester bond (at 784 cm-1) and DNA bases ring modes (at 1574 cm-1) was also to nucleic acids was also reported by K.”
Lasalvia 等 - 2022 - A Comparison of PCA-LDA and PLS-DA Techniques for DOI: 10.3390/app12115345 -
Carboxyl (COOH) confiança 1,0
“cm(cid:3)1 entropy minimization and spectral dissimilarity to 3400 Moreover, the peak at 1574 cm(cid:3)1 investigate the solid-state kinetics of intramolecular assigned to carboxylate was shifted to 1552”
Current and Potential Applications of Simultaneous DSC-FTIR Microspectroscopy for Pharmaceutical Analysis DOI: 10.38212/2224-6614.3345 -
Carboxyl (COOH) confiança 1,0
“withnitricacid,thespecificsurfaceareaincreasedfrom99.8m2g(cid:2)1 at 1720 and 1185 which are associated with the m2 g(cid:2)1, CQO asymmetric and C-O stretching band of the carboxylic acid to 111.9 which could be attributed to the opening o”
The synthesis and characterization of tributyl phosphate grafted carbon nanotubes by the floating catalytic chemical vapor deposition method and their sorption behavior towards uranium DOI: 10.1039/c5nj02639c
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