What absorbs at 2893 cm⁻¹ in an FTIR spectrum?
A band near 2893 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 3 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 |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 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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Alkyl C-H 置信度 1.0
“WP, cm-1 O-H stretching, and the peak at 2893 is the characthe prominent peak of modified wood was merged in the teristic band for C-H stretching.”
Awal 等 - 2012 - Thermal analysis and spectroscopic studies of elec DOI: 10.1007/s10973-011-1875-0 -
Alkyl C-H 置信度 1.0
“The band at 2893 is assigned to the CH 2-S asymmetric stretching mode of vibration.”
Crystal Growth, Spectral, Optical, Laser damage, Photoconductivity and Dielectric Properties of Semiorganic L-cystine hydrochloride Single Crystal DOI: 10.1016/j.saa.2015.06.113 -
Hydroxyl (O-H) 置信度 1.0
“For the initial membrane (Figure 6), the absorption bands at around 3487, 2941 and 2893 cm-1 are characteristic of stretching vibrations of the -OH, -CH 2, and”
Rupiasih 等 - 2018 - Study on Transport Properties of Chitosan Membrane DOI: 10.5614/j.math.fund.sci.2018.50.2.6
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