What absorbs at 1722 cm⁻¹ in an FTIR spectrum?
A band near 1722 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Carbonyl (C=O) | 11 | 8 | 1.0 |
| Carboxyl (COOH) | 3 | 3 | 0.9 |
| Ester | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Carbonyl (C=O) 置信度 1.0
“Explicit assignment: 'C=O (1722 cm-1)'”
Mujbil 等 - 2022 - Utilization of Metal Oxides Nanoparticles in Modul DOI: 10.3390/met12091413 -
C-O single bond 置信度 0.9
“Explicit assignment: n(C-O) groups at 1722 cm-1.”
Bakan 等 - 2020 - Synthesis, characterization and toxicity assessmen DOI: 10.1002/bip.21333 -
置信度 0.9
“Band due to free esters and acids C=O stretch observed at 1722.43 cm-1.”
Firsoni 等 - 2019 - Fiber Content and Relative Feed Value Estimation o DOI: 10.1088/1757-899X/546/4/042008 -
Carbonyl (C=O) 置信度 0.9
“IR absorption band at 1722 cm-1 assigned to C=O stretching.”
Kasar 等 - 2015 - Speciation of citric acid on anatase (TiO2)-water DOI: 10.1515/ract-2014-2320) -
Carbonyl (C=O) 置信度 0.9
“Explicit assignment: carbonyl stretching mode at 1722 cm-1.”
Aguilar-Rodriguez 等 - 2023 - Microanalytical Characterization of an Innovative DOI: 10.3390/molecules28020564 -
Carboxyl (COOH) 置信度 0.9
“Text: 'carboxylic band (1722 cm-1)'”
Alzard 等 - 2022 - Visible-Light-Driven Photocatalytic Coupling of Ne DOI: 10.1021/acsomega.2c04934 -
Carbonyl (C=O) 置信度 0.9
“Explicit assignment from text.”
Harwansh 和 Deshmukh - 2021 - Formulation and Evaluation of Sodium Alginate and DOI: 10.5530/ijper.55.3.145 -
Carboxyl (COOH) 置信度 0.9
“Characteristic stretching of COOH at 1722 cm-1.”
Kawalko 等 - 2023 - Characteristics of Humic Acids in Drained Floodpla DOI: 10.3390/su151411417
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