What absorbs at 2875 cm⁻¹ in an FTIR spectrum?
A band near 2875 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 8 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 | 5 | 4 | 0.9 |
| Alkene (C=C) | 1 | 1 | 0.9 |
| N h | 1 | 1 | 0.8 |
| Methyl | 1 | 1 | 0.5 |
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
-
Alkene (C=C) 置信度 0.9
“Explicit assignment in text.”
Aguilar 等 - 2019 - Biomedical Grade Stainless Steel Coating of Polyca DOI: 10.3390/polym11040584 -
Alkyl C-H 置信度 0.9
“Peak area within 2750-3000 cm-1 assigned to aliphatic C-H.”
Mozaffari 等 - 2022 - Effect of N-2 and CO2 on shale oil from pyrolysis DOI: 10.1080/10916466.2014.950383. -
Alkyl C-H 置信度 0.9
“weak peak for symmetric CH2 stretching”
Santos 等 - 2023 - Different Species of Marine Sponges Diverge in Ost DOI: 10.3390/jfb14030122 -
Alkyl C-H 置信度 0.9
“Explicit assignment in text”
Xu 等 - 2013 - The effect of surface functional groups of nanosil DOI: 10.2478/pjct-2013-0039 -
Alkyl C-H 置信度 0.8
“C-H stretching region”
Kiss 等 - 2012 - Structure and reactivity of Au-Rh bimetallic clust DOI: 10.1016/j.cattod.2011.06.002 -
N h 置信度 0.8
“Symmetrical stretching vibration of amine N-H.”
Sethi 等 - 2021 - Evaluation of Low Molecular Weight Cross Linked Ch DOI: 10.1177/15593258211025353 -
置信度 0.8
“Text: 'a band at 2875 ascribing to the stretching vibrations of the methy'”
Sorokin 等 - 2022 - Chitosan Graft Copolymers with N-Vinylimidazole as DOI: 10.3390/polym14112279 -
置信度 0.7
“Text: 'cm-1 of bands around 2875 for SiO2-NH characteristics'”
Sperandio 等 - 2010 - Use of Functionalized Nanosilica to Improve Thermo DOI: 10.1166/jnn.2010.1458
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