What absorbs at 459 cm⁻¹ in an FTIR spectrum?
A band near 459 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 459 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.
Mulige funktionelle gruppetildelinger
| Funktionel gruppe | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 0 | 0,9 |
Rangering afspejler akkumulerede litteraturbeviser, ikke en enkelt autoritativ regel. Bekræft altid mod din prøvekontekst.
Possible materials
| Materiale | Understøttende toppe | Overlapping groups | Citerede kilder |
|---|---|---|---|
| TiO2 | 459, 1700, 1093 | Metal oxygen, Alkyl C-H, Methacrylate | 2 |
| PDMS | 459, 873, 1080 | Alkyl C-H, Methacrylate | 1 |
| SiO2 | 459, 1739, 699 | Alkyl C-H, Metal oxygen | 1 |
| Fe3O4 | 459, 2358, 1673 | Metal oxygen, Alkyl C-H, Methacrylate | 1 |
| polyaniline | 459, 1565, 1570 | Alkyl C-H, Methacrylate, Acetate | 1 |
| nanocomposites | 459, 1717, 1630 | Alkyl C-H, Methacrylate, Acetate | 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 459 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.
Litteratur bag disse tildelinger
-
Metal oxygen tillid 1,0
“from the leaf extract and Ce-O stretching mode at 459 This study shows that CeO NPs exhibit mild to moderate 2 analysis of cFU counting assay”
Maqbool 等 - 2016 - Antimicrobial potential of green synthesized CeO2 DOI: 10.2147/IJN.S113508 -
Hydroxyl (O-H) tillid 1,0
“cm-1 Si-O As seen in Figure 5a, the absorption at 3326 was bond, showing the presence of SiO deposited on the 2 vibration,18 particles.23 O-H attributed to stretching and the absorption surface of TiO The two peaks at 458.6 and 464.3 2”
Wang 等 - 2023 - Surface-Modified TiO2@SiO2 Nanocomposites for Enha DOI: 10.1021/acsomega.3c02679 -
tillid 1,0
“6j, the Ti 2p peaks at 458.84 eV and 464.58 eV correspond to the chemical states Ti 2p1/2 and Ti 2p3/2, respectively.”
Photocatalytic activity of ZrO2/TiO2/Fe3O4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology DOI: 10.1038/s41598-022-14676-y -
Metal oxygen tillid 1,0
“Therefore, PANI@TiO 2 and PANI@TiC nanocomposites showed peaks at 459 eV and 462 eV, which correspond”
Bekhoukh 等 - 2021 - Development, Investigation, and Comparative Study DOI: 10.3390/polym13193344 -
Alkyl C-H tillid 1,0
“While the VIS regression coefficient showed a curve profile with a maximal contribution typical of the 8-hydroxyquinoline-Cd(II) complex [54], the FTIR regression coefficient profile included Kelex 100 characteristic IR vibrational bands at”
Determination of Cadmium (II) in Aqueous Solutions by In Situ MID-FTIR-PLS Analysis Using a Polymer Inclusion Membrane-Based Sensor: First Considerations DOI: 10.3390/molecules25153436 -
Alkyl C-H tillid 1,0
“The broadened and deep peaks at 459 was assigned to angular bending of (Silva cm(cid:3)1 C-H et al.”
Mahapatra 等 - 2023 - Chemically activated carbon preparation from natur DOI: 10.2166/wst.2023.004 -
Silicon (Si) tillid 1,0
“cm-1 (670-560 The third group of bands, with a maximum at 459 is associated with O-Si(Al)-O bending vibrations of six-membered rings in D6R units or possibly with cm-1 vibrations of higher-membered (12-membered) rings.”
Recycling of Waste Solution after Hydrothermal Conversion of Fly Ash on a Semi-Technical Scale for Zeolite Synthesis DOI: 10.3390/ma14061413 -
Alkyl C-H tillid 1,0
“[39,48] Bands at 466 cm-1 and 493 cm-1 are attributed to the convolution) of bands at 472 cm-1 propOx from TPOZ) 1445 1444 1438 1443 1445 C-H asym bend in -CH [39,40] from TEOS with 459 cm-1 from TPOZ and 500 cm-1 from PDMS with 482 cm-1 fr”
Electron Beam Irradiation on the Production of a Si- and Zr-Based Hybrid Material: A Study by FTIR and WDXRF DOI: 10.3390/ma16020489
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