What absorbs at 1625 cm⁻¹ in an FTIR spectrum?
A band near 1625 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 8 cited sources
Mulige funksjonelle gruppe-tilordninger
| Funksjonell gruppe | Støttende fakta | Siterte kilder | Toppkonfidens |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 5 | 1.0 |
| Protein beta sheet | 4 | 4 | 1.0 |
| Amide | 4 | 4 | 0.9 |
| Carbonyl (C=O) | 4 | 4 | 0.9 |
| Alkene (C=C) | 2 | 2 | 0.9 |
| Water (H2O) | 1 | 1 | 0.9 |
| N h | 1 | 1 | 0.9 |
| C=n | 1 | 1 | 0.8 |
| Ammonium | 1 | 1 | 0.7 |
| Nitrogen heterocycle | 1 | 1 | 0.6 |
Rangeringen gjenspeiler akkumulert litteraturbevis, ikke en enkelt autoritativ regel. Bekreft alltid mot prøvekonteksten din.
Litteratur bak disse tilordningene
-
Protein beta sheet konfidens 1.0
“Text: 'peaks at 1625 (intermolecular β-sheet) and ... (β-sheet)'”
Lin 等 - 2004 - Pressure dependence of human fibrinogen correlated DOI: 10.1002/bip.20012 -
Hydroxyl (O-H) konfidens 1.0
“Text: 'The absorption band at 1625 cm-1 (-OH)'.”
Ionete 等 - 2019 - A Room Temperature Gas Sensor Based on Sulfonated DOI: 10.3390/s19051116 -
Carbonyl (C=O) konfidens 0.9
“Explicit assignment.”
Bhatlu 等 - 2023 - Preparation of Breadfruit Leaf Biochar for the App DOI: 10.1155/2023/7369027 -
konfidens 0.9
“Peaks at 1625 and 1417 assigned to carboxylic group of uronic acids.”
Hernandez-Garibay 等 - 2019 - Sulfated polysaccharides (fucoidan) from the brown DOI: 10.1007/s10811-019-01870-1 -
Hydroxyl (O-H) konfidens 0.9
“Text: 'bands at 3331, 1625, and 1,437 for the hydroxyl group'”
Khan 等 - 2022 - Biosynthesis and characterization of iron oxide na DOI: 10.3389/fpls.2022.1001499 -
Amide konfidens 0.9
“Explicit assignment: amide peak shift to 1625 from 1650.”
Lehmkuhl 等 - 2015 - Fabrication of IR-transparent microfluidic devices DOI: 10.1039/C5LC00759C. -
konfidens 0.9
“Explicit assignment in text.”
Wen 等 - 2010 - An Unexplored O-2-Involved Pathway for the Decarbo DOI: 10.1002/chem.201001704 -
Hydroxyl (O-H) konfidens 0.9
“Assigned to OH bending mode”
Behera 等 - 2020 - Removal of Chromium from Synthetic Wastewater Usin DOI: 10.3390/app10093181
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