What absorbs at 3653 cm⁻¹ in an FTIR spectrum?
A band near 3653 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 6 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) | 5 | 4 | 1.0 |
| Ammonium | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Acetate | 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
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置信度 1.0
“peak at 3653 is caused by the stretching vibration (Wang et al., fingerprint”
Cao 和 Gu - 2023 - Mineralogical and spectral characteristics of Chan DOI: 10.3389/feart.2023.1183522 -
Acetate 置信度 1.0
“Also, the observation of the bands at 3674 and 3653cm-1 1683cm-1 C=O confirms that the used kaolinite is a highly is due to the free vibration since the at”
Guessoum 等 - 2012 - Effects of Kaolin Surface Treatments on the Thermo DOI: 10.1155/2012/549154 -
Hydroxyl (O-H) 置信度 1.0
“3669 Out-of-plane OH stretching vibrations 3653 Vibrations of two surface hydroxyls 3620 Inner OH groups, lying between the sheets of tetrahedral and octahedral units”
The Fourier transform infrared spectroscopy (FTIR) analysis for the clay mineralogy studies in a clastic reservoir DOI: 10.1007/s13202-021-01449-y -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Ma 等 - 2019 - Investigation of the Optical, Physical, and Chemic DOI: 10.3390/su11143803 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: broad band at 3653 cm-1 indicating -OH group.”
Impact of Diisocyanates on Morphological and In Vitro Biological Efficacy of Eco-Friendly Castor-Oil-Based Water-Borne Polyurethane Dispersions DOI: 10.3390/polym14173701 -
Hydroxyl (O-H) 置信度 0.9
“Stretch bands of OH group characteristic of kaolinite.”
Hildebrando 等 - 2014 - Synthesis and Characterization of Zeolite NaP Usin DOI: 10.1590/S1516-14392014005000035
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