What absorbs at 534 cm⁻¹ in an FTIR spectrum?
A band near 534 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 534 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.
Mögliche Funktionsgruppenzuweisungen
| Funktionelle Gruppe | Unterstützende Fakten | Zitierte Quellen | Höchstes Vertrauen |
|---|---|---|---|
| Hydroxyl (O-H) | 6 | 5 | 1,0 |
| Methacrylate | 5 | 5 | 1,0 |
| Acetate | 5 | 5 | 1,0 |
| C-O single bond | 5 | 4 | 1,0 |
| Methoxy (OCH3) | 4 | 4 | 1,0 |
| Ketone | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Amide | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| N-O bond | 2 | 2 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
Das Ranking spiegelt die gesammelte Literatur Evidenz wider, nicht eine einzelne maßgebliche Regel. Bestätigen Sie immer anhand Ihres Probenkontexts.
Possible materials
| Material | Unterstützende Peaks | Overlapping groups | Zitierte Quellen |
|---|---|---|---|
| ZnO | 534, 1400, 3430 | Hydroxyl (O-H), Acetate, Methacrylate | 1 |
| TiO2 | 534, 1700, 1093 | Hydroxyl (O-H), Methacrylate, Acetate | 1 |
| silver nanoparticles | 534, 1636, 1631 | Hydroxyl (O-H), Methacrylate, Acetate | 1 |
| polypropylene | 534, 1030, 1600 | Methacrylate, Acetate, Hydroxyl (O-H) | 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 534 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.
Literatur hinter diesen Zuweisungen
-
Hydroxyl (O-H) Vertrauen 1,0
“1,629 for alkenyl stretch, 1,407 for phenol or cm-1 From the stock solution, the experimentalbioassaymedia was tertiary alcohol, OH bend, 1,032 for cyclohexane ring cm-1 C-I diluted using Milli Q water as a solvent to the desired convibrati”
Marimuthu 等 - 2013 - Eco-friendly microbial route to synthesize cobalt DOI: 10.1007/s00436-013-3601-2 -
Acetate Vertrauen 1,0
“The peak at around 533.5eV groups.[25] to further explain the influence of FePP on high temperature can be attributed to -Oin C-O-C, C-O-P, or C-OH”
Synergistic effects of ferric pyrophosphate (FePP) in intumescent flameretardant polypropylene DOI: 10.1002/pat.1590 -
C-O single bond Vertrauen 1,0
“As is also seen from Figure 3e,f, the intensity decrease in the peak at 533.6 eV related to C-OH means the existence of intramolecular or intermolecular dehydration reactions, which happen more”
Porous Structure of -Cyclodextrin for CO2 Capture: Structural Remodeling by Thermal Activation DOI: 10.3390/molecules27217375 -
Vertrauen 1,0
“The relatedtotheZneObond.Thepeak at534.07eVisassociatedwith decrease in absorbance peak intensityalso indicates the stabilityof loosely bonded oxygen atoms such as the hydroxy group on the the BTA molecule after loading [33].”
Effect of the modified hybrid particle on the corrosion inhibition performance of polyolefin based coatings for carbon steel DOI: 10.1016/j.jsamd.2022.100466 -
Vertrauen 1,0
“Two bands, at 534 (-17) and 440 s cm-1, c (-13) are assigned to ν(Fe-NO) and δ(Fe-NO) modes, respectively, even though r”
Hayashi 等 - 2009 - Accommodation of Two Diatomic Molecules in Cytochr DOI: 10.1021/bi801915r. -
N-O bond Vertrauen 1,0
“peaks in PAO at 533.9, 401.9, and 283.7 eV were related to -CN-O.”
Huang 等 - 2021 - High Selective Isomerization of Glucose to Fructos DOI: 10.1021/acsomega.1c02577 -
Metal oxygen Vertrauen 1,0
“M-O-M The peak at 533.70 eV corresponds to the bond, at 713.06 and 725.55 eV are called satellite peaks for Fe 2p 3/2 Fe+3”
Iqbal 等 - 2023 - Reduced Graphene Oxide-Modified Spinel Cobalt Ferr DOI: 10.1021/acsomega.2c06636 -
Acetate Vertrauen 1,0
“Even though UV-irradiated TNW caused the most prominent chemical changes (c and d in Figure S8), we noted some similarities in the spectra of TNW samples under dark and UV light: (i) increase in the P 2p peak at 134.5 eV and O 1 s peak at 5”
Thorn-like TiO2 nanoarrays with broad spectrum antimicrobial activity through physical puncture and photocatalytic action DOI: 10.1038/s41598-019-50116-0
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