Methyl — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Methyl tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Characteristic FTIR peaks for Methyl
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 1375 | 6 | 6 | 0.9 |
| 2960 | 6 | 4 | 1.0 |
| 2854 | 5 | 5 | 1.0 |
| 2852 | 5 | 5 | 1.0 |
| 2922 | 5 | 5 | 1.0 |
| 2921 | 4 | 4 | 1.0 |
| 2961 | 4 | 4 | 1.0 |
| 2926 | 4 | 4 | 1.0 |
| 2930 | 4 | 4 | 1.0 |
| 2925 | 4 | 4 | 0.95 |
| 1376 | 4 | 4 | 0.9 |
| 2954 | 4 | 4 | 0.9 |
| 3000 | 4 | 3 | 1.0 |
| 2870 | 4 | 3 | 0.9 |
| 1458 | 3 | 3 | 1.0 |
| 1456 | 3 | 3 | 1.0 |
| 1379 | 3 | 3 | 1.0 |
| 2924 | 3 | 3 | 1.0 |
| 2950 | 3 | 3 | 0.9 |
| 2953 | 3 | 3 | 0.9 |
| 2855 | 3 | 3 | 0.9 |
| 2964 | 3 | 2 | 0.95 |
| 2920 | 3 | 2 | 0.9 |
| 2956 | 3 | 2 | 0.9 |
| 2934 | 2 | 2 | 1.0 |
| 2874 | 2 | 2 | 1.0 |
| 1463 | 2 | 2 | 1.0 |
| 2853 | 2 | 2 | 1.0 |
| 2974 | 2 | 2 | 0.95 |
| 2967 | 2 | 2 | 0.95 |
Showing the 30 best-supported peaks of 141 total for Methyl.
Literature behind these assignments
-
2960 cm⁻¹ confidence 1.0
“explicit assignment”
Presswood 等 - 2016 - Geochemical and petrographic alteration of rapidly DOI: 10.1016/j.coal.2016.08.022 -
1373 cm⁻¹ confidence 1.0
“Explicitly assigned to -CH3.”
Chaparro 等 - 2023 - Biowaxes from Palm Oil as Promising Candidates for DOI: 10.3390/ma16124402 -
2930 cm⁻¹ confidence 1.0
“CH3 at 2930”
El-Shekeil 等 - 2012 - Effect of pMDI isocyanate additive on mechanical a DOI: 10.1177/0021998310385030) -
2921 cm⁻¹ confidence 1.0
“Text: 'peak at about 2921 is attributed to asymmetric or symmetric stretching vibrations (C-H) of the methyl (-CH3-) and methylene (-CH2-) groups'”
Grabi 等 - 2021 - Studies of the potential of a native natural bioso DOI: 10.1038/s41598-021-88657-y -
3422 cm⁻¹ confidence 1.0
“Text: 'The broad absorption peak at 3422 cm-1 is attributed to the presence of phenol hydroxyl groups (-OH) and asymmetric CH vibrations in CH2 and CH3 groups'.”
Ionete 等 - 2019 - A Room Temperature Gas Sensor Based on Sulfonated DOI: 10.3390/s19051116 -
2852 cm⁻¹ confidence 1.0
“-CH3 and -CH2 stretching bands in oleic acid”
Kim 等 - 2020 - Laboratory Testing of Scheelite Flotation from Raw DOI: 10.3390/min10110971 -
2924 cm⁻¹ confidence 1.0
“Explicit assignment: 'methyl and methylene groups ... peaks at ... 2924'”
Li 等 - 2020 - Preparation and Properties of Self-Healing Polyure DOI: 10.1021/acsomega.9b03082 -
1367 cm⁻¹ confidence 1.0
“symmetric stretch”
Meade 等 - 2007 - Growth substrate induced functional changes elucid DOI: 10.1007/s00216-006-0876-5
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