What absorbs at 2922 cm⁻¹ in an FTIR spectrum?
A band near 2922 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkyl C-H | 32 | 31 | 1.0 |
| Methyl | 5 | 5 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 0.9 |
| Nucleic acid | 1 | 1 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.8 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Methyl 信心 1.0
“-CH3 and -CH2 stretching bands in oleic acid”
Kim 等 - 2020 - Laboratory Testing of Scheelite Flotation from Raw DOI: 10.3390/min10110971 -
Alkyl C-H 信心 1.0
“Explicit assignment in text”
Mady 和 Allam - 2012 - The influence of low power microwave on the proper DOI: 10.1016/j.ejmp.2011.02.003 -
Methyl 信心 1.0
“Stretching bands of -CH3 and -CH2 groups on sericite surfaces.”
Qiu 等 - 2016 - An Investigation of Reverse Flotation Separation o DOI: 10.3390/min6030057 -
Alkyl C-H 信心 1.0
“Explicit assignment to ν(-CH) stretch.”
Soares Pereira 等 - 2019 - In vitro evaluation of PVA gels loaded with Copaib DOI: 10.1590/0104-1428.03719 -
Alkyl C-H 信心 0.95
“Explicit assignment in text”
Ashby 等 - 2013 - The effect of alkyl chain length on the level of c DOI: 10.1007/s11051-013-1425-8 -
Alkyl C-H 信心 0.95
“Explicit assignment: 'bands at 2922 and 2853 were due to the methylene C-H asymmetric and symmetric stretch'”
Cebi - 2021 - Quantification of the Geranium Essential Oil, Palm DOI: 10.3390/foods10081848 -
Alkyl C-H 信心 0.95
“Corresponded to -CH2 stretching vibration.”
Zou 等 - 2022 - Dispersion of sodium phytate on muscovite and the DOI: 10.37190/ppmp/154951 -
Alkyl C-H 信心 0.9
“Stated: 'stretch vibrations in CH group at 2922'.”
Kumar 等 - 2014 - 60 MeV Ni ion induced modifications in nano-CdSpo DOI: 10.1016/j.radphyschem.2013.06.022
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