What absorbs at 3461 cm⁻¹ in an FTIR spectrum?
A band near 3461 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) | 4 | 4 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 0.7 |
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 cm-1 intensities at 3461 and 3361 (-N-H) were the strongest for samples close to the source cm-1 of dimer 2 (0 cm), while the peaks at 1688 (C=O) were strongest for samples close to N the entry port of dimer 1 (12.7 cm) (Fig.”
Elkasabi 等 - 2011 - Cellular transduction gradients via vapor-deposite DOI: 10.1016/j.biomaterials.2010.10.046. -
Alkyl C-H 置信度 1.0
“aryl CH wagging (907-831 The MgO spectrum exhibits the absorption band at cm-1 3461 attributed to the O-H stretching vibration group that demonstrates the existence of hydroxyl groups in the MgO nanoparticles.”
Highly Selective Removal of Cationic Dyes from Wastewater by MgO Nanorods DOI: 10.3390/nano12061023 -
Hydroxyl (O-H) 置信度 1.0
“intermolecular hydrogen-bonded OH stretching”
Kavitha 等 - 2019 - Formulation of alginate based hydrogel from brown DOI: 10.1016/j.heliyon.2019.e02916 -
Hydroxyl (O-H) 置信度 1.0
“301) (221) 2852 (0 ( O-H stretching of residual free water 3461 [14] 5 15 25 35 45 55”
Salimi 和 Javadpour - 2012 - Synthesis and Characterization of Nanoporous Monet DOI: 10.1155/2012/931492 -
Hydroxyl (O-H) 置信度 1.0
“For a relatively sharp band at cm-1 316 O 3,461 is still present in the OH stretching region of 3461 317 1.8 11).”
Ventruti 等 - 2015 - In situ high-temperature XRD and FTIR investigatio DOI: 10.1007/s10973-014-4305-2 -
Carbonate 置信度 0.7
“Band attributed to carbonate.”
Khatem 和 Bakhti - 2013 - Study of factors controlling the sorption of diclo DOI: 10.2166/wqrjc.2013.059
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