What absorbs at 1603 cm⁻¹ in an FTIR spectrum?
A band near 1603 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 |
|---|---|---|---|
| Aromatic ring | 2 | 2 | 0.9 |
| Carboxyl (COOH) | 2 | 2 | 0.8 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 0.8 |
| Alkyl C-H | 1 | 1 | 0.8 |
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
-
信心 1.0
“Explicit assignment in text”
Meng 等 - 2019 - Preparation of aminated chitosan microspheres by o DOI: 10.1098/rsos.182226 -
Carbonyl (C=O) 信心 1.0
“explicit assignment”
Roy 等 - 2020 - Exploring the Inclusion Complex of a Drug (Umbelli DOI: 10.1021/acsomega.0c04716 -
Aromatic ring 信心 0.9
“Explicit assignment in text: 'cm-1 is the aromatic ring skeleton vibration'”
Shan 等 - 2022 - Analysis of Pyrolysis Performance and Molecular St DOI: 10.1021/acsomega.1c06350 -
Aromatic ring 信心 0.9
“typical of aromatic ring vibrations of lignin”
Zhou - 2022 - Oxidation of Lignin-Carbohydrate Complex by Laccas DOI: 10.17576/jsm-2022-5103-07 -
Carboxyl (COOH) 信心 0.8
“Peak at 1603 cm-1 assigned to COO- asymmetric vibration.”
Boddapati 等 - 2020 - Structural analysis and antioxidative properties o DOI: 10.1016/j.procbio.2020.07.006 -
Alkyl C-H 信心 0.8
“C-H band centered at 1603 cm-1”
D'Angelo 等 - 2013 - Fossil cutin of Macroneuropteris scheuchzeri (Late DOI: 10.1016/j.coal.2012.10.012 -
Carboxyl (COOH) 信心 0.8
“Stretching of carboxylate salts, probably uronic acids.”
Rafe 和 Razavi - 2015 - Effect of Thermal Treatment on Chemical Structure DOI: 10.1080/10942912.2014.999864 -
Oxygen heterocycle 信心 0.8
“band corresponding to furan ring”
Abu-Yamin 等 - 2022 - Synthesis, Characterization and Biological Activit DOI: 10.3390/ph15040454
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