What absorbs at 1724 cm⁻¹ in an FTIR spectrum?
A band near 1724 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 |
|---|---|---|---|
| Carbonyl (C=O) | 20 | 19 | 0.95 |
| Ester | 3 | 3 | 0.9 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| C c single bond | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Hydrogen 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
-
Carboxyl (COOH) 信心 1.0
“Assigned to carboxyl group.”
Conzatti 等 - 2019 - Thermosensitive PNIPAM grafted alginatechitosan P DOI: 10.1016/j.apsusc.2018.10.269 -
Carbonyl (C=O) 信心 0.95
“Attributed to ester group's carbonyl (C=O) stretching.”
Hamdy 等 - 2022 - Production and optimization of bioplastic (Polyhyd DOI: 10.1186/s12866-022-02593-z -
Carbonyl (C=O) 信心 0.95
“Text: 'peak at 1724 corresponds to carbonyl groups'”
Aliyev 等 - 2020 - SI-ATRP Polymer-Functionalized Graphene Oxide for DOI: 10.1002/admi.202000443. -
Carbonyl (C=O) 信心 0.9
“Band assigned to carbonyl group in modified starch.”
Sayka 等 - 2020 - Synthesis and Spectroscopic Characterization of an DOI: 10.1002/star.201900056. -
Carbonyl (C=O) 信心 0.9
“Explicit assignment in table.”
Wille 等 - 2003 - Redox-triggered FTIR difference spectra of FAD in DOI: 10.1021/bi035219f -
Carbonyl (C=O) 信心 0.9
“Chromophore assignment for C=O at 1724 cm-1.”
van Thor 等 - 2005 - Assignments of the Pfr-Pr FTIR difference spectrum DOI: 10.1021/jp052323t -
Carbonyl (C=O) 信心 0.9
“Text: 'These are attributed to the stretching of carbonyl'”
Alvarado 等 - 2020 - Synthesis and characterization of butyl acrylate-c DOI: 10.1080/15685551.2020.1739506 -
Carbonyl (C=O) 信心 0.9
“Explicit assignment.”
Bhattacharya 等 - 2016 - Biodegradable Polymeric Substances Produced by a M DOI: 10.3390/bioengineering3040034
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