What absorbs at 3244 cm⁻¹ in an FTIR spectrum?
A band near 3244 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 5 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) | 3 | 2 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Carbohydrate | 2 | 1 | 1.0 |
| Secondary amine | 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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Hydroxyl (O-H) 置信度 1.0
“In the ATR-FTIR reference spectrum of Table 3 Analysis of sugars in honey types from different geothree honey types the broad band at 3261.153 to graphical regions of Kashmir valley cm-1 3243.931 might be due to O-H stretching vibration”
Physicochemical, antioxidant and FTIR-ATR spectroscopy evaluation of Kashmiri honeys as food quality traceability and Himalayan brand DOI: 10.1007/s13197-020-04878-5 -
置信度 1.0
“The bluecm-1 N-H the broadband at 3244 shifting of this band was accentuated as the LiClO is attributed to the 4”
Gurumendi 等 - 2023 - Enhanced Chitosan Photoluminescence by Incorporati DOI: 10.1021/acsomega.2c08072 -
N h 置信度 1.0
“further Melting points were recorded by open capillary cm(cid:2)1): 3462.98, 3376.91, 3337.02 (NH2, hexane (7:3)), FTIR (KBr disc, methodonStuartSMP10andareuncorrected.Silicagelplateswereused NH stretch), 3243.98, 3201.22, 3050.12, 3009.30”
7-Hydroxy-4-phenyl-1, 2-dihydroquinoline derivatives: synthesis via one-pot, three-component reaction and structure elucidation DOI: 10.1016/j.heliyon.2020.e05035 -
置信度 0.95
“Explicit assignment: gypsum band at ≈3244 cm-1 (2ν (ν of H2O))”
Chemometrics approach to FT-IR hyperspectral imaging analysis of degradation products in artwork cross-section DOI: 10.1016/j.clay.2010.10.021. -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'O-H stretching at 3244'.”
Mineral and chemical changes of sediments after Cu sorption and then desorption induced by synthetic root exudate DOI: 10.1016/j.chemosphere.2019.124393
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