What absorbs at 3267 cm⁻¹ in an FTIR spectrum?
A band near 3267 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 | 5 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Hydrogen bond | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 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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Amide 置信度 1.0
“(-CONH2), and aromatic amine (C-N), respectively, present Increase in frequency of CS-SP peaks at 3267.39 and 1635.58cm-1 in chitosan.”
Bande 等 - 2015 - Synthesis and Characterization of Chitosan-Saponin DOI: 10.1155/2015/371529 -
Hydroxyl (O-H) 置信度 1.0
“As expected, the main vibrational bands specific to the molecular cm-1, structure of DNA in solution were found in three different regions-namely, 3267 attributed to the stretching vibrations of the OH and NH bonds of the amino acid;”
Use of Fourier-Transform Infrared Spectroscopy for DNA Identification on Recycled PET Composite Substrate DOI: 10.3390/app12094371 -
置信度 1.0
“ranging from 2927 to 3729 The stretching vibrations of hydrogen-bond O-H and cm-1, N-H groups are assigned to the primary peak at 3267 showing phenolic and alcoU.”
Efficiency of Fe3O4 Nanoparticles with Different Pretreatments for Enhancing Biogas Yield of Macroalgae Ulva intestinalis Linnaeus DOI: 10.3390/molecules26165105 -
Hydroxyl (O-H) 置信度 1.0
“In view of the results obtained in Figure 8, the characteristic absorption peaks of O-H stretching vibration from the interand intra-molecular hydrogen bonds were obcm-1, served at 3267 while C-H stretching vibration from alkyl groups was o”
Preparation and Physicochemical Characterization of a Diclofenac Sodium-Dual Layer Polyvinyl Alcohol Patch DOI: 10.3390/polym13152459 -
Hydroxyl (O-H) 置信度 1.0
“2 cm-1 cm-1 cm-1 cm-1 3267 ν(O-H 3174 ν(O-H stretch 3315 ν(O-H stretch and 3406 ν(O-H stretch and stretch)”
Silveira 等 - 2021 - DOI: 10.1590/0366-69132021673833101 -
Hydroxyl (O-H) 置信度 0.9
“Assigned to O-H stretching vibration.”
Niu 等 - 2021 - Preparation and Characterization of Biodegradable DOI: 10.1155/2021/6633711
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