What absorbs at 2884 cm⁻¹ in an FTIR spectrum?
A band near 2884 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 |
|---|---|---|---|
| Alkyl C-H | 5 | 3 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Methyl | 1 | 1 | 0.8 |
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
-
C-O single bond 置信度 1.0
“The characteristic absorption modes observed in the FTIR spectrum at the wavenumbers ~732 , ~842, ~950, ~1048 , ~ 1113, ~ 1244 ,~ 1351,~ 1432, ~ 1468, ~2884 cm-1 6-), and ~2939 are attributed to C-Clst., 𝑠(PF (C-O-C)st., ν(COC) s,w(CH s, δ(”
Arya 等 - 2018 - Effect of variation of different nanofillers on st DOI: 10.1007/s11581-016-1784) -
Hydroxyl (O-H) 置信度 0.9
“Text: 'absorption peak at 2884 ... a hydroxyl'”
Liu 等 - 2022 - Effects of biochar pyrolysis temperature on therma DOI: 10.1039/d1ra09167k -
置信度 0.9
“Text: 'and 2884 which can be attributed to ≡CH groups'”
Zaib 和 Athar - 2019 - DOI: 10.4152/pea.201905285 -
Alkyl C-H 置信度 0.8
“Text: 'Two important vibrational bands at 2884 and 2839 of peaks produced during the cross-linking reaction of C-H'”
Manesa 等 - 2022 - Fabrication and Characterization of Sericin-PVA Co DOI: 10.1021/acsomega.2c00897 -
Methyl 置信度 0.8
“Assigned to methyl and methylene vibrations.”
Fu 等 - 2020 - Soil-applied selenite increases selenium and reduc DOI: 10.1038/s41598-020-77350-1 -
置信度 0.5
“Text mentions 'peaks at 2883.58' and 'bend of R-NH and C-O-C' but not explicitly linked to this peak; inferred association.”
Nouri 和 Khodaiyan - 2020 - Magnetic Biocatalysts of Pectinase Synthesis by M DOI: 10.17113/ftb.58.04.20.6737
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