What absorbs at 3290 cm⁻¹ in an FTIR spectrum?
A band near 3290 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 9 | 9 | 1.0 |
| N h | 3 | 3 | 0.9 |
| Protein | 2 | 2 | 0.9 |
| Amine primary | 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
-
Hydroxyl (O-H) 置信度 1.0
“Stretching vibration of OH groups from hydroxyproline units.”
Leu Alexa 等 - 2021 - 3D-Printed Gelatin Methacryloyl-Based Scaffolds wi DOI: 10.3390/polym13050727 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'influencing 3290cm-1, which is associated with O-H stretching.'”
Bryant 等 - 2023 - Variable lignin structure revealed in Populus leav DOI: 10.1039/d3ra03142j -
Hydroxyl (O-H) 置信度 0.9
“Peak at 3290 cm-1 characteristic of stretching of -OH groups.”
Daudt 等 - 2017 - Development of edible films based on Brazilian pin DOI: 10.1016/j.foodhyd.2017.04.033 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'hydroxyl group stretching peak at 3290'.”
Shalu 等 - 2018 - Solvent assisted improvement of the dielectric pro DOI: 10.1016/j.mee.2018.07.002 -
Protein 置信度 0.9
“Broad band centred at about 3290 cm-1 assigned to N-H and O-H stretching.”
Biancolillo 等 - 2020 - Geographical discrimination of red garlic (Allium DOI: 10.1002/cem.785 -
Hydroxyl (O-H) 置信度 0.9
“characteristic bands of O-H at 3290 cm-1”
Brito 等 - 2023 - Influence of Reduction with NaBH4 and HCl in Obtai DOI: 10.3390/polym15132856 -
Amine primary 置信度 0.9
“Explicit assignment in text”
Dong 等 - 2009 - Quinoline Group Modified Carbon Nanotubes for the DOI: 10.1007/s11671-008-9248-8 -
N h 置信度 0.9
“stretching of the -NH group”
Judith Valdez-Alegria 等 - 2020 - Synthesis of Chitosan-Polyvinyl Alcohol Biopolymer DOI: 10.3390/biom10010156
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