What absorbs at 483 cm⁻¹ in an FTIR spectrum?
A band near 483 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 7 cited sources
Quick answer
A band near 483 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.
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Metal hydroxyl | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 0 | 1,0 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Possible materials
| Material | Stödjande toppar | Overlapping groups | Citerade källor |
|---|---|---|---|
| TiO2 | 483, 1700, 1093 | Metal oxygen, Hydroxyl (O-H) | 1 |
| Fe3O4 | 483, 2358, 1673 | Hydroxyl (O-H), Metal oxygen, Silicon-oxygen (Si-O) | 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 483 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 bakom dessa identifieringar
-
Metal oxygen förtroende 1,0
“The sharp peaks observed 3 cm-1 at 483 further characterize the presence of Mn-O stretching vibration bond in Mn 3O 4/MnSnO nanocomposite by 3 cm-1 employing Raman spectra.”
Synthesis and characterization of Mn3O4/MnSnO3 nanocomposites for supercapacitor applications DOI: 10.1007/s12588-019-09250-7 -
Metal hydroxyl förtroende 1,0
“attributed to stretching of O-H groups, which indicates the adsorbed For TiO nanoparticles, TiO 2 2 cm-1 network bonds and deformation vibrations of stretching mode of Ti-OH peaks were observed at 483 and”
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 -
Carbohydrate förtroende 1,0
“The bands at 483, 1082, cm-1 matrices consists of the means of the spectra that correspond to and 1322 are assigned to carbohydrates (Schulte et al., 2008;”
Combining Chemical Information From Grass Pollen in Multimodal Characterization DOI: 10.3389/fpls.2019.01788 -
förtroende 1,0
“In the spectrum obtained for pristine alumina, the following bands characteristic for this compound appear: the O-H stretching band in the wavelength range of 3600-3200 cm-1, the O-H bending oscillation band originating from the water physi”
Klapiszewska 等 - 2019 - Production of cement composites using alumina-lign DOI: 10.5277/ppmp19058 -
Silicon (Si) förtroende 1,0
“cm-1 cm-1 υ2-type Two peaks at about 445 and 483 associated with internal deformaTwo peaks at about 445 cm-1 and 483 cm-1 associated with υ2-type internal υ4-type tions (O non-Si-O vibrations) and asymmetric bending (ASB) vibrations deforma”
Madadi 和 Wei - 2022 - Characterization of Calcium Silicate Hydrate Gels DOI: 10.3390/gels8020075 -
förtroende 1,0
“bandshiftsfrom514-526cm-1 correspondingtotheSi-O-Alvibration,to483-499cm-1 theδ (Si-O-Fe) 3 Simultaneously, the δ3 band shifts from 514-526 cm-1 corresponding to the Si-O-Al vibration, to 483-”
Zviagina 等 - 2020 - Distinguishing Features and Identification Criteri DOI: 10.3390/min10020153 -
Silicon-oxygen (Si-O) förtroende 0,9
“Peak at 483 cm-1 assigned to SiO group in Ca2Si3O8.”
Synthesis and spectroscopic investigations of trivalent europium-doped Z2Si3O8 (Z = Mg, Ca and Sr) nanophosphors for display applications DOI: 10.1007/s12598-020-01391-8
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