What absorbs at 1801 cm⁻¹ in an FTIR spectrum?
A band near 1801 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 2 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 |
|---|---|---|---|
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Carbon dioxide | 1 | 1 | 1.0 |
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
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Carbon dioxide 置信度 1.0
“For these results, the signals at 870 cm-1 indicating the cm-1 presence of Ca-O bonds, the band at 1386 is the band relative to CaCO (formed 3 presence of Ca-O bonds, the band at 1386 cm-1 is the band relative to CaCO3 (formed cm-1 during t”
Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts DOI: 10.3390/ma15030844 -
Acetate 置信度 1.0
“compares the FTIR spectra of the Eudragit E film at 30 and intensityof a new peak at due to the asymmetric stretching 1801C, Several characteristic IRabsorptionbands and their assignments at the mode of C-O-C also increased beyond strongly”
DSC-FTIR microspectroscopy used to investigate the heat-induced intramolecular cyclic anhydride formation between Eudragit E and PVA copolymer DOI: 10.1038/pj.2011.15;
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