What absorbs at 3738 cm⁻¹ in an FTIR spectrum?
A band near 3738 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 7 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 |
| Silanol (Si-OH) | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 1 | 1.0 |
| Silicon (Si) | 2 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 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 addition, three additional pronanoshapes preserved their shapes during reaction, The CeO 2 cm(cid:2)1 are obnounced hydroxyl bands at 3738, 3602, and 3253 as evident from TEM images of samples after reaction (see the served for cubes.”
Exposed Surfaces on ShapeControlled Ceria Nanoparticles Revealed through ACTEM and WaterGas Shift Reactivity DOI: 10.1002/cssc.201300651 -
Silanol (Si-OH) 置信度 1.0
“cm-1 3261 as well as one negative band at 3738 The FTIR band at 3738 is attributed to internal silanol groups in line with earlier works [49].”
Baran 等 - 2016 - Influence of the nature and environment of cobalt DOI: 10.1016/j.micromeso.2015.12.061 -
Hydroxyl (O-H) 置信度 1.0
“In the OH stretching region one can see the band at 3738, which at 77K reveals a structure of three”
Belykh 等 - 2019 - Deep insight into CO adsorption on Ni-USY zeolite DOI: 10.1016/j.apcata.2019.117140 -
Carboxyl (COOH) 置信度 1.0
“The FTIR spectrum of MB shows the newly appeared cm-1 band at 3738 due to bridging and bidentate coordination between the carboxyl group of boswellic acid and Fe Fig.”
Eco-friendly adsorbents based on abietic acid, boswellic acid, and chitosan/magnetite for removing waste oil from the surface of the water DOI: 10.1007/s11356-022-20169-2 -
Silicon (Si) 置信度 1.0
“S5), showing only one band at 3738 cm-1 in the O-H region characteristic of terminal Si-OH group (Deka et al., 1998).”
Hamoud 等 - 2019 - Photo-assisted SCR over highly dispersed silver su DOI: 10.1016/j.apcatb.2019.02.022 -
Aromatic ring 置信度 1.0
“Explicit assignment in text: 'wave number of 3738.05 refers to aromatic group cm-1 (C-H)'”
Maruddin 等 - 2022 - Effects of drying methods and acidic strength on p DOI: 10.15586/ijfs.v34i1.2010 -
置信度 1.0
“8 of large amounts terminal silanol group (Si-O-H) located at internal and external 9 cm-1 surface of FS by a detectable intense peak at 3738 [73].”
Modified fibrous silica for enhanced carbon dioxide adsorption: Role of metal oxides on physicochemical properties and adsorption performance DOI: 10.1016/j.apcatb.2018.11.040
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