What absorbs at 1665 cm⁻¹ in an FTIR spectrum?
A band near 1665 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 |
|---|---|---|---|
| C-O single bond | 2 | 2 | 0.9 |
| Carbonyl (C=O) | 2 | 2 | 0.8 |
| Amide | 2 | 2 | 0.8 |
| N h | 1 | 1 | 0.9 |
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 0.9
“Intense absorption peak attributed to imide stretching.”
Itta 和 Tseng - 2011 - Hydrogen separation performance of CMS membranes d DOI: 10.1016/j.ijhydene.2011.03.146 -
置信度 0.9
“Explicit assignment in text”
Janarthanan 等 - 2023 - Exploration and Evaluation of Pony Fish (Leiognath DOI: 10.18805/IJAR.B-4999. -
置信度 0.9
“explicit assignment in text”
Payghan 等 - 2022 - Preparation and Characterization of Orlistat Biona DOI: 10.4274/tjps.galenos.2021.71363 -
C-O single bond 置信度 0.9
“Vibrational stretch of C-O-C group assigned to peak at 1665.00.”
Razack 等 - 2013 - Medium optimization for the production of exopolys DOI: 10.3906/biy-1206-50 -
置信度 0.9
“Text: 'peak at 1665 cm-1 ... represents the stretching of the ketonic C=O band.'”
Russo 等 - 2021 - Enhanced Anti-Fouling Behavior and Performance of DOI: 10.3390/pr9020246 -
N h 置信度 0.9
“Explicit assignment: '1665 ... for -NH'”
Vijitha 等 - 2021 - Fabrication of Eco-Friendly Polyelectrolyte Membra DOI: 10.3390/polym13193293 -
Amide 置信度 0.8
“bands in the Amide I region”
Fevzioglu 等 - 2020 - Quantitative approach to study secondary structure DOI: 10.1016/j.ijbiomac.2020.07.299 -
Carbonyl (C=O) 置信度 0.8
“Carbonyl stretching vibration (Amide I band)”
Tosa 等 - 2012 - Simultaneous Determination Of Some Artificial Swee DOI: 10.1063/1.3681976
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