FTIR峰解读
What absorbs at 1661 cm⁻¹ in an FTIR spectrum?
A band near 1661 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 |
|---|---|---|---|
| Carbonyl (C=O) | 4 | 3 | 0.9 |
| Amide | 2 | 2 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Protein beta sheet | 1 | 1 | 0.8 |
| Nucleic acid | 1 | 1 | 0.8 |
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
-
C-O single bond 置信度 1.0
“Explicit assignment in text”
Lu 和 Mi - 2005 - Characterization of the interfacial interaction be DOI: 10.1021/ma0486896 -
置信度 0.9
“Explicit assignment: 'Al=O (1661)'.”
Mutrofin 等 - 2018 - Physical-chemistry of Nawangan's phyropyllite and DOI: 10.1088/1757-899X/285/1/012026 -
Hydroxyl (O-H) 置信度 0.9
“ascribed to bending vibration of O-H of adsorbed water”
Al-Qahtani 等 - 2022 - Structural, morphological, optical and electrochem DOI: 10.15251/JOR.2022.182.187 -
Alkene (C=C) 置信度 0.9
“Explicit assignment in text.”
Blat 等 - 2021 - Spectroscopic Signature of Red Blood Cells in a D- DOI: 10.3390/ijms22052660 -
Carbonyl (C=O) 置信度 0.9
“C=O stretch.”
Nikpassand 等 - 2017 - Green synthesis of novel 2-pyrazolyl-1,3-thiazolid DOI: 10.1515/hc-2017-0124 -
Carbonyl (C=O) 置信度 0.9
“Band at 1661 cm-1 assigned to PVP (C=O).”
Rabiller-Baudry 等 - 2020 - How microwaves can help to study membrane ageing DOI: 10.1080/09593330.2018.1564072 -
Amide 置信度 0.9
“Explicit assignment: '1661 ... attributed to ... Amide-I'.”
Rasul 等 - 2022 - Development of antimicrobialantioxidant nanocompo DOI: 10.21203/rs.3.rs-337479/v1 -
Carbonyl (C=O) 置信度 0.8
“Peak in carbonyl fundamental region.”
Fedorov 等 - 2003 - Application of time-resolved step-scan Fourier tra DOI: 10.1021/jp021573w
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