What absorbs at 1725 cm⁻¹ in an FTIR spectrum?
A band near 1725 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) | 24 | 23 | 1.0 |
| Ester | 6 | 6 | 0.9 |
| Carboxyl (COOH) | 6 | 6 | 0.9 |
| C-O single bond | 2 | 2 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.9 |
| Acetyl | 1 | 1 | 0.7 |
| Imide | 1 | 1 | 0.7 |
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
-
Carbonyl (C=O) 信心 1.0
“Explicit assignment in text: '1725 band assigned to the formation of carbonyl groups'.”
Romero 等 - 2005 - In situ FTIR spectroscopy study of the break-in ph DOI: 10.1021/jp054026u -
信心 1.0
“Explicit assignment.”
Botelho 等 - 2004 - Enhancement of the thermooxidative degradability o DOI: 10.1016/j.polymdegradstab.2004.05.022 -
Carbonyl (C=O) 信心 1.0
“Explicit assignment: 'peak at 1725 is characteristic of carbonyl group'”
Franca 等 - 2018 - Photodegradation Mechanisms on Poly(epsilon-caprol DOI: 10.1590/1980-5373-MR-2017-0837 -
Carbonyl (C=O) 信心 1.0
“Explicit assignment.”
Nadal 等 - 2018 - A Simple and High-yield Synthesis of Hexadecyl Fer DOI: 10.1590/1678-4324-2018170809 -
Carbonyl (C=O) 信心 0.95
“explicit assignment for FEN”
Gorniak 等 - 2023 - Screening of Fenofibrate-Simvastatin Solid Dispers DOI: 10.3390/pharmaceutics15020603 -
Carbonyl (C=O) 信心 0.95
“Explicit assignment: carbonyl peak at 1725 cm-1.”
Lonnberg 等 - 2011 - Investigation of the graft length impact on the in DOI: 10.1016/j.compscitech.2010.09.007 -
信心 0.95
“Explicit assignment: stretching vibrations of carbonyl >C=O”
Selin 等 - 2018 - Ionically Paired Layer-by-Layer Hydrogels Water a DOI: 10.3390/gels4010007 -
Carbonyl (C=O) 信心 0.9
“New carbonyl peak at about 1,725 cm-1 attributed to residual formic acid.”
Biagiotti 等 - 2022 - Electrospun Silk Fibroin Scaffolds for Tissue Rege DOI: 10.3389/fbioe.2022.833157
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