What absorbs at 454 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 454 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 454 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

• Metal oxygen 신뢰도 1.0

  “FTIR analysis shows peaks at 590 cm and -1 454 cm -1, which are identified as the characteristic absorption bands of Zr-O and Al-O.”

  Chandradass 和 Kim - 2009 - Effect of acidity on the citrate-nitrate combustio DOI: 10.1007/s12540-009-1039-y
• 신뢰도 1.0

  “The absorption peak at 454 is due to Fe-O stretching by Fe-O and Fe-O bending by Fe-”

  Mohammed 等 - 2019 - Structural, dielectric, and magneto-optical proper DOI: 10.1088/2053-1591/ab063b
• Silicon-oxygen (Si-O) 신뢰도 1.0

  “Elongation vibrations of the T-O bond (T=Si or Al) 475 [24,29] O-Si-O deformation vibrations 454 [12]”

  The Influence of Substitution of Fly Ash with Marble Dust or Blast Furnace Slag on the Properties of the Alkali-Activated Geopolymer Paste DOI: 10.3390/coatings13020403
• Alkyl C-H 신뢰도 1.0

  “The peaks at 1,454 cm-1 cm-1 -OH -CH 2,970 and 1,357 could be assigned to CH and bending indicate presence of stretching vibration peak 2 cm-1 1,420-1,460”

  Mishra 等 - 2008 - Synthesis and characterization of pectinPVP hydro DOI: 10.1208/s12249-008-9048-6
• Silicon (Si) 신뢰도 1.0

  “Peak at 454 and 515 are assigned to Si-O bending cm-1 and Al-O stretching vibrations respectively [20], Peak at 799 is assigned to 1 3 Polymer Bulletin (2022) 79:5587-5611”

  Muralishwara 等 - 2022 - Moisture absorption and spectroscopic studies of e DOI: 10.1007/s00289-022-04200-7
• 신뢰도 1.0

  “cm-1 lattice vibration is associated with a sharp peak at 454 At 532 corresponds to the oxygen vaccines”

  Microfluidic assisted low-temperature and speedy synthesis of TiO2/ZnO/GOx with bio/photo active cites for amoxicillin degradation DOI: 10.1038/s41598-022-19406-y
• 신뢰도 1.0

  “Symmetric stretching of Si-O-Si was detected at 1067 cm-1, bending vibration of -OH in the silanol group at 800 cm-1 and rocking vibration of Si-O group at 454 cm-1 [29-31].”

  Developing Post-Consumer Recycled Flexible Polypropylene and Fumed Silica-Based Nanocomposites with Improved Processability and Thermal Stability DOI: 10.3390/polym15051142
• 신뢰도 0.9

  “Explicit assignment in snippet.”

  Bacterial Colonization on the Surface of Copper Sulfide Minerals Probed by Fourier Transform Infrared Micro-Spectroscopy DOI: 10.3390/cryst10111002