What absorbs at 1613 cm⁻¹ in an FTIR spectrum?
A band near 1613 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 7 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) | 2 | 2 | 0.9 |
| Amide | 2 | 2 | 0.9 |
| Protein beta sheet | 1 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.7 |
| Protein | 1 | 1 | 0.7 |
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
-
置信度 0.95
“Explicit assignment: >C=N- functionality at 1613 cm-1.”
Jubeen 等 - 2023 - Synthesis, Characterization, Theoretical and Exper DOI: 10.3390/pharmaceutics15071929 -
Amide 置信度 0.9
“Explicit assignment: 'peaks of amide I (at 1,613'”
Lin 等 - 2008 - Characterization of surface modification on microe DOI: 10.1007/s10544-007-9114-y -
Protein beta sheet 置信度 0.9
“Explicit assignment: 'peak at 1613 ... was β-structure (β-sheets)'.”
Thakur 等 - 2017 - Characteristics of normal and waxy corn physicoch DOI: 10.1007/s13197-017-2775-5) -
Amide 置信度 0.9
“Explicit assignment in text.”
Guo 等 - 2022 - Fast and Deep Diagnosis Using Blood-Based ATR-FTIR DOI: 10.3390/biom12121815 -
Carbonyl (C=O) 置信度 0.9
“Explicit assignment: 'peaks at 1613.2 and 1581.2 indicate the presence of carbonyl group'”
Jain 等 - 2013 - Formulation and Evaluation of Spray-Dried Esomepra DOI: 10.4314/tjpr.v12i3.4 -
Carbonyl (C=O) 置信度 0.9
“-C=O stretching vibrations (in polygalacturonic acid).”
Ren 等 - 2018 - Pomelo Peel Modified with Citrate as a Sustainable DOI: 10.3390/molecules23061342 -
Protein 置信度 0.7
“Peaks 1363 to 1613 indicate protein and carbohydrate contents.”
Saba 等 - 2019 - Potential role of bacterial extracellular polymeri DOI: 10.1080/10889868.2019.1602107
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