Methoxy (OCH3) — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Methoxy (OCH3) 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 Methoxy (OCH3)
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 2951 | 1 | 1 | 0.9 |
| 2847 | 1 | 1 | 0.9 |
| 2824 | 1 | 1 | 0.9 |
| 2897 | 1 | 1 | 0.9 |
| 2926 | 1 | 1 | 0.9 |
| 974 | 1 | 1 | 0.9 |
| 2960 | 1 | 1 | 0.9 |
| 1349 | 1 | 1 | 0.9 |
| 1455 | 1 | 1 | 0.9 |
| 1663 | 1 | 1 | 0.9 |
| 3225 | 1 | 1 | 0.9 |
| 1032 | 1 | 1 | 0.9 |
| 1206 | 1 | 1 | 0.9 |
| 1469 | 1 | 1 | 0.9 |
| 1591 | 1 | 1 | 0.9 |
| 1432 | 1 | 1 | 0.9 |
| 2870 | 1 | 1 | 0.9 |
| 1127 | 1 | 1 | 0.8 |
| 2900 | 1 | 1 | 0.8 |
| 1116 | 1 | 0 | 1.0 |
Literature behind these assignments
-
2870 cm⁻¹ confidence 0.9
“Explicit: 'characteristic ether and methoxy peaks at 1120 and 2870'”
Cacao 等 - 2013 - High-Resolution, High-Throughput, Positive-Tone Pa DOI: 10.1371/journal.pone.0056835 -
1432 cm⁻¹ confidence 0.9
“Text: 'band 1431.77 presented methoxyl-O-CH3, which belongs to one of the lignin's components'.”
Najeeb 等 - 2020 - Characterization of silane treated Malaysian Yanke DOI: 10.1016/j.jmrt.2020.01.058 -
1591 cm⁻¹ confidence 0.9
“Explicit assignment in text.”
Ahmad 等 - 2022 - Synthesis, Characterization, and Antibacterial Pot DOI: 10.3390/pr10091878 -
3225 cm⁻¹ confidence 0.9
“From snippet: '3225 OCH3'”
Hadi 等 - 2014 - Formulation and Evaluation of pH-Responsive Mini-T DOI: 10.4314/tjpr.v13i7.3 -
1663 cm⁻¹ confidence 0.9
“Explicit assignment: 'trigger the peaks at 1663 cm-1, 1455 cm-1, and 1349 cm-1' for methoxy group vibrations.”
Kumar 等 - 2022 - Influence of KI salt concentration on the hydroxyp DOI: 10.21203/rs.3.rs-770530/v1 -
2960 cm⁻¹ confidence 0.9
“O-CH3 signature”
Mattelaer 等 - 2020 - Atomic Layer Deposition of Localized Boronand Hy DOI: 10.1021/acs.chemmater.9b04967 -
974 cm⁻¹ confidence 0.9
“Explicit assignment”
Sales Passos 等 - 2020 - Spectrochemical analysis in blood plasma combined DOI: 10.1038/s41598-020-68781-x -
2926 cm⁻¹ confidence 0.9
“Explicit assignment in text.”
Shtyka 等 - 2020 - Photocatalytic Reduction of CO2 Over Me (Pt, Pd, N DOI: 10.1007/s11244-020-01241-y
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