What absorbs at 1787 cm⁻¹ in an FTIR spectrum?
A band near 1787 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 |
|---|---|---|---|
| Ester | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Chlorine | 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
-
Chlorine 置信度 1.0
“For all the matrices (CS:CL-CNC7:3-50%-AgNPs), new bands have appeared (1642 cm-1 and 1787 cm-1) showing a better interaction in the order of CL-WE-AgNPs rate: 5%, 10%, 40%, 50%, to 20%.”
Part B: Improvement of the Optical Properties of Cellulose Nanocrystals Reinforced Thermoplastic Starch Bio-Composite Films by Ex Situ Incorporation of Green Silver Nanoparticles from Chaetomorpha linum DOI: 10.3390/polym15092148 -
Carbonyl (C=O) 置信度 1.0
“In the cm-1 case of f-MWNT 9, an ester carbonyl band at 1787 emerged due to an ester group on its”
Zhang 和 Yan - 2010 - Analytical strategies for characterizing the surfa DOI: 10.1007/s00216-009-2996-1.
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