What absorbs at 457 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 457 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.

가능한 작용기 할당

순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.

Possible materials

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 457 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.

이 할당의 배경이 되는 문헌

• C c single bond 신뢰도 1.0

  “The bands at 457 and 434 are ascribed to C-C-O ring deformation modes while 517 and 378 peaks are due to CO-C glycosidic link deformation and C-C-C ring deformation vibrations, respectively.”

  Adebajo 等 - 2006 - Raman spectroscopic investigation of acetylation o DOI: 10.1016/j.saa.2005.07.045
• 신뢰도 1.0

  “The other two vibrational peaks seen at 457 and 460 in OPC and clinker, respectively, might be resulted from the in-plane Si-O bending in SiO4 tetrahedra”

  Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh DOI: 10.4209/aaqr.220109
• Hydroxyl (O-H) 신뢰도 1.0

  “Fritsch et al.: OH stretching vibrations in serpentines 457 frequencies.”

  Fritsch 等 - 2021 - Structural, textural, and chemical controls on the DOI: 10.5194/ejm-33-447-2021
• 신뢰도 1.0

  “Additionally, two new peaks appeared at 457 cm-1 and 623 in the IR spectrum of ZnO@OFE NPs, which are characteristic of bending vibrations of Zn-O bonds, in agreement with previous reports [40].”

  Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles DOI: 10.3390/antiox12061201
• 신뢰도 1.0

  “Ti4+ 2p 2p the two strong peaks Ti (464.31 eV) and Ti (458.53 eV) are assigned to (TiO [27] and 1/2 3/2 2 Ti-OH) and the two peaks (457.01 and 462.44 eV) are attributed to Ti 2O [31].”

  Deposition of TiO2 Thin Films on Wood Substrate by an Air Atmospheric Pressure Plasma Jet DOI: 10.3390/coatings9070441
• Metal oxygen 신뢰도 1.0

  “The sharp peak positioned at 457 is of the presence of Zn-O stretching bonds.”

  Synthesis, Characterization and Antimicrobial Activity of Zinc Oxide Nanoparticles against Selected Waterborne Bacterial and Yeast Pathogens DOI: 10.3390/molecules27113532
• Ester 신뢰도 1.0

  “Metabolites 2014, 4 457 cm-1 the lipid content (2984-2780 methyl and methylene groups or stretching of ester bonds at cm-1), which can be explained only by different cellular biochemical ratios.”

  Wagner 等 - 2014 - Surveillance of C-allocation in microalgal cells. DOI: 10.3390/metabo4020453
• Metal oxygen 신뢰도 0.9

  “Peak at 457 cm-1 assigned to Fe-O stretching vibration.”

  Fe3O4@SiO2@KIT-6@2-ATP@CuI as a catalyst for hydration of benzonitriles and reduction of nitroarenes DOI: 10.1038/s41598-023-34409-z