What absorbs at 1245 cm⁻¹ in an FTIR spectrum?
A band near 1245 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 |
|---|---|---|---|
| Amide | 3 | 3 | 0.9 |
| C-O single bond | 2 | 2 | 0.9 |
| Carbonyl (C=O) | 2 | 2 | 0.8 |
| Ester | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 0 | 0.9 |
| Aromatic ring | 1 | 0 | 0.6 |
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 1.0
“explicit assignment in text”
Hong 等 - 2022 - Underlying Mechanisms of Reductive Amination on Pd DOI: 10.3390/ijms23147621 -
置信度 1.0
“explicit assignment”
Khudaida 等 - 2022 - Microparticle Production of Active Pharmaceutical DOI: 10.3390/cryst12070922 -
Ester 置信度 0.9
“Text states '1245cm-1 absorption ... confirmed the ester bonds'.”
Habibi - 2015 - Functional biocompatible magnetite-cellulose nanoc DOI: 10.1016/j.saa.2014.10.035 -
C-O single bond 置信度 0.9
“Text: 'C-O stretching bands at 1171, 1197 and 1245'.”
Kanakdande 等 - 2019 - Pineapple Waste and Wastewater Route for Biodiese DOI: 10.1590/1678-4324-2019180499 -
置信度 0.9
“Text: 'band at 1244.69 cm-1 was the -CH stretch of primary alcohol'”
Khalid 等 - 2020 - Thiolated sodium alginate conjugates for mucoadhes DOI: 10.1016/j.ijbiomac.2020.08.116 -
置信度 0.9
“Explicit assignment from text.”
Califano 等 - 2009 - Substrate temperature dependence of the structure DOI: 10.1051/ep -
置信度 0.9
“explicit assignment”
Cosnita 等 - 2022 - The Influence of Fly Ash on the Mechanical Propert DOI: 10.3390/polym14101957 -
Amide 置信度 0.9
“Described as 'amide-III, which is observed at 1245'.”
Hassan 等 - 2021 - On the Weak Binding and Spectroscopic Signature of DOI: 10.1002/cbic.202100486
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