What absorbs at 1516 cm⁻¹ in an FTIR spectrum?
A band near 1516 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 |
|---|---|---|---|
| Amide | 3 | 2 | 0.9 |
| Aromatic ring | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.9 |
| Protein beta sheet | 1 | 1 | 0.8 |
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
-
Aromatic ring 置信度 1.0
“Band associated with C-C aromatic stretch.”
Stevens 等 - 2019 - Detectability of biosignatures in a low-biomass si DOI: 10.1038/s41598-019-46239-z -
Amide 置信度 0.9
“Explicit assignment for chitosan.”
Patil 等 - 2021 - Design and synthesis of a new topical agent for ha DOI: 10.1016/j.colsurfb.2020.111454 -
Carboxyl (COOH) 置信度 0.9
“Zinc carboxylate bands between 1565 and 1516 cm-1.”
Henderson 等 - 2019 - Infrared chemical mapping of degradation products DOI: 10.1186/s40494-019-0313-7 -
Carbohydrate 置信度 0.9
“Text: 'carbohydrate absorbance bands (at 1516, 1168, 833 and 985)'.”
Muthreich 等 - 2020 - Chemical variations in Quercus pollen as a tool fo DOI: 10.1101/761148 -
置信度 0.9
“Text: 'absorption band at 1516 belonging to the azole rings'”
Sorokin 和 Lavlinskaya - 2022 - Interaction of the nitrogen-containing carbon back DOI: 10.55730/1300-0527.3458 -
Amide 置信度 0.9
“Explicit assignment in text: 'Amide II other protein'”
Taylor 等 - 2011 - Infrared spectroscopy with multivariate analysis t DOI: 10.1038/sj.bjc.6606094 -
Protein beta sheet 置信度 0.8
“Considered β-sheet conformation.”
Tamburro 等 - 2005 - Supramolecular amyloid-like assembly of the polype DOI: 10.1074/jbc.M411617200
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