What absorbs at 1622 cm⁻¹ in an FTIR spectrum?
A band near 1622 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkene (C=C) | 6 | 5 | 0.9 |
| Carbonyl (C=O) | 3 | 3 | 0.9 |
| Carboxyl (COOH) | 2 | 2 | 0.95 |
| Nitrogen heterocycle | 1 | 1 | 1.0 |
| Urea | 1 | 1 | 0.9 |
| C=n | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.5 |
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
-
Nitrogen heterocycle 信心 1.0
“Characteristic pyridine band.”
Liu 等 - 2021 - Novel hydrophobic catalysts to promote hydration a DOI: 10.1039/d1ra01188j -
Carboxyl (COOH) 信心 0.95
“Explicit assignment: carboxylate asymmetric stretching”
Keshavarz 等 - 2018 - Non-Covalent Supported of L-Proline on Graphene Ox DOI: 10.3390/molecules23020330 -
C=n 信心 0.9
“Explicit assignment: peak belongs to C=N.”
Mohsin 和 Mihsen - 2020 - Uptake of Metal Ions (Co(II) and Ni(II)) by Silica DOI: 10.1007/s10904-019-01379-7 -
Alkene (C=C) 信心 0.9
“Explicit assignment: '1622 cm-1 represent stretching vibration of C=C'”
Afreen 等 - 2017 - A novel multicopper oxidase (laccase) from cyanoba DOI: 10.1371/journal. -
Alkene (C=C) 信心 0.9
“Text: 'peak at 1622 indicated the expansion of the C=C bond'”
Al-Otibi 等 - 2023 - The Antifungal Properties of Tamarix aphylla Extra DOI: 10.3390/microorganisms11010127 -
Carbonyl (C=O) 信心 0.9
“Explicit assignment in text.”
Ali 等 - 2023 - Biosynthesis and characterization of cobalt nanopa DOI: 10.1042/BSR20230151 -
Carboxyl (COOH) 信心 0.9
“Explicit assignment in text: 'these two bands are present at 1622 cm-1 compound' and 'carboxylate group'.”
Alibrahim - 2022 - FTIR, H-1 NMR, TGA, TEM AND BIOLOGICAL STUDIES ON DOI: 10.31925/farmacia.2022.1.19 -
Urea 信心 0.9
“Band at 1622 cm-1 assigned to C=O of urea.”
Haraguchi 等 - 2013 - Glycerol-derived polyurethane nanocomposites conta DOI: 10.4025/actascitechnol.v35i4.20276
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