What absorbs at 3060 cm⁻¹ in an FTIR spectrum?
A band near 3060 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
Quick answer
A band near 3060 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Mogelijke functionele-groeptoewijzingen
| Functionele groep | Ondersteunende feiten | Geciteerde bronnen | Hoogste vertrouwen |
|---|---|---|---|
| Alkyl C-H | 17 | 15 | 1,0 |
| Aromatic ring | 9 | 7 | 1,0 |
| N h | 4 | 4 | 1,0 |
| Secondary amine | 3 | 3 | 1,0 |
| Amide | 3 | 3 | 1,0 |
| Alkene (C=C) | 3 | 3 | 1,0 |
| Carboxyl (COOH) | 3 | 3 | 1,0 |
| Hydrogen bond | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Ketone | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Ring structure | 2 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amine primary | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
Ranglijst weerspiegelt cumulatief literatuurbewijs, niet één gezaghebbende regel. Bevestig altijd aan de hand van uw monsterecontext.
Possible materials
| Materiaal | Ondersteunende pieken | Overlapping groups | Geciteerde bronnen |
|---|---|---|---|
| polystyrene | 3060, 1020, 1600 | Aromatic ring, Alkyl C-H | 1 |
| microplastics | 3060, 1643, 1614 | Alkyl C-H, Aromatic ring | 1 |
Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.
Spectrum logic
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3060 cm⁻¹ is usually not enough for material identification by itself.
Real-world usage
This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.
Common mistakes
- Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
- Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
- Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.
Verification advice
When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.
Literatuur achter deze toewijzingen
-
Aromatic ring vertrouwen 1,0
“Finally, the PS was characterized by absorption bands at 3060, 3026 (-CH aromatic stretching vibrations), 1600, 1492, and 1452 (-C=C aromatic stretching), indicating the Polymers2023,15,911”
Campanale 等 - 2023 - Fourier Transform Infrared Spectroscopy to Assess DOI: 10.3390/polym15040911 -
Aromatic ring vertrouwen 1,0
“(cm(cid:3)1) Assignment Reference Peak at CAH 3060 and 3026 Aromatic stretching Mark and Bikales (1987) CAH 2923 and 2852 Aliphatic stretching”
Galgali 等 - 2007 - Sugar-linked biodegradable polymers Regio-specifi DOI: 10.1016/j.carbpol.2006.06.035 -
Hydrogen bond vertrouwen 1,0
“overtone of strong bands near The wide band at of the five deuteron groups, bound with hydrogen bonds, 3060cm-1 3048cm-1 ca.”
Rozenberg 等 - 2005 - Low-temperature FTIR spectra and hydrogen bonds in DOI: 10.1016/j.saa.2004.05.024 -
Aromatic ring vertrouwen 1,0
“3), whereas it appears to be CAH 2930cm(cid:2)1 in methyl-substituted PAH spectra the main aromatic stretching peak varies in 3060shifted at about 3040cm(cid:2)1 stretching peak of alrange in dependence on the aromatic species.”
Infrared spectroscopy of some carbon-based materials relevant in combustion: Qualitative and quantitative analysis of hydrogen DOI: 10.1016/j.carbon.2014.03.014 -
Alkyl C-H vertrouwen 1,0
“2002, 324, C-H cm-1 is also observable in the stretch region at about 3060 (8) Edman, K.;”
Sudo 等 - 2005 - Steric constraint in the primary photoproduct of a DOI: 10.1021/ja056203aCCC -
N h vertrouwen 1,0
“The FTIR of LX (pure drug) shown intense bands at 3060 cm-1, 1647 cm-1, 1590 cm-1, cm-1, cm-1 1590 1323 and 783 corresponding to the functional groups NH, C=O, cm-1, 1323 cm-1, and 783 cm-1 corresponding to the functional groups NH, C=O, CO”
Almotairi 等 - 2022 - Design and Optimization of Lornoxicam Dispersible DOI: 10.3390/ph15121463 -
Aromatic ring vertrouwen 1,0
“For pyrolyzed cm-1, 29 biochar the important stretching vibrations are the O-H at 3400 the aliphatic C-H stretch cm-1, cm-1, 30 between 3000-2860 the aromatic C-H stretch at 3060 the carboxyl (C=O) stretch at cm-1,”
Cibati 等 - 2017 - Assessment of Miscanthus x giganteus derived bioch DOI: 10.1016/j.jclepro.2017.06.114 -
Alkyl C-H vertrouwen 1,0
“In Raman spectra, C-H stretching vibration was assigned at 3060 The stretching”
Density Functional Theory and Molecular Docking Investigations of the Chemical and Antibacterial Activities for 1-(4-Hydroxyphenyl)-3-phenylprop-2-en-1-one DOI: 10.3390/molecules26123631
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