What absorbs at 2017 cm⁻¹ in an FTIR spectrum?
A band near 2017 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
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Amide | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Alkyl C-H confidence 1.0
“4 (2017) cm-1 υ 4-υ 2390-2350 δ(C-H) Stretching vibration Su and Sun (2017), Sujka et al.”
FT-IR spectroscopy with chemometrics for rapid detection of wheat flour adulteration with barley flour DOI: 10.1007/s00003-019-01267-9 -
Hydroxyl (O-H) confidence 1.0
“cm-1, 2800-2900 corresponding to -OH stretching and 2017).”
Azhar 等 - 2020 - Lignin-Coated PolystyreneTrichloromethylsilane Ab DOI: 10.17576/jsm-2020-4909-12 -
Amide confidence 1.0
“The amide III vibration (at thermally 2017, 100(cid:1) Egyptian Journal of Archaeological and Restoration Studies degraded at 90 and C for goat and sheep leathers 1-10.”
Hassan - 2019 - Fourier transform infrared spectroscopy to detect DOI: 10.1080/00387010.2019.1623262 -
Alkyl C-H confidence 1.0
“cm-1 increased their absorbance due to surrounding vibration of cis-double bonds in unsaturated fatty chemical changes as a consequence of the oxidation acids) (linoleic and linoleic acyl group), 3000-2850 cm-1 1745cm-1 (Two peaks of CH sym”
Effect of heating on the oxidative stability of corn oil and soybean oil ; Efecto del calentamiento sobre la estabilidad oxidativa de aceites de maíz y de soja DOI: 10.3989/gya.0698181 -
Hydroxyl (O-H) confidence 1.0
“Since 2017 cm-1) Fig.5 shows the change of the intensities of the peaks at the hydrogen-bonded surface hydroxyls (2550 and 2650”
Tanaka 等 - 2005 - FT-IR study on behavior of surface hydroxyls under DOI: 10.13182/FST05-A917 -
Alkyl C-H confidence 1.0
“3025 Aromatic CH stretching (Talari et al., 2017) Olefinic, CH stretching vibration (Dreissig et al., 2009) 3001 CH iley.com”
Comparison of the Effects of Statins on A549 Nonsmall‐Cell Lung Cancer Cell Line Lipids Using Fourier Transform Infrared Spectroscopy: Rosuvastatin Stands Out DOI: 10.1002/lipd.12296
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