What absorbs at 472 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 472 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 472 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

• 신뢰도 1.0

  “Si-O-Si symmetric vibration Si-O-Si 472 471 Si-O-Si bending vibration unmodified surface-modified Table 5: DLS of the and silica”

  Ganie 等 - 2020 - Synthesis and Characterization of a New Surface-Mo DOI: 10.1155/2020/8814260
• Acetate 신뢰도 1.0

  “A (cm-1) 472 and stretching vibration of Stretching vibration of methyl group (-CH) at ~2930 (cm-1) M 473 carboxyl (C-O-C) group at ~1030 and ~1250 were also observed.”

  Evaluation of structural integrity and functionality of commercial pectin based edible films incorporated with corn flour, beetroot, orange peel, muesli and rice flour DOI: 10.1016/j.foodhyd.2019.01.022
• Silicon (Si) 신뢰도 1.0

  “cm-1 observed at 472 was due to the stretching vibration of gel was suction filtered, washed thoroughly with distilled cm-1 the Si-O-Si bond.”

  Adam 等 - 2012 - Liquid Phase Oxidation of Acetophenone over Rice H DOI: 10.1016/S1872-2067(11)60361-6
• Phosphate (PO4) 신뢰도 1.0

  “cm-1 PO43originate from ions, The bands located at 472.474, 568.798, 601.682, 1039.44 and 1091.51 and are weaker than the strong P-O stretching vibration due to HA stoichiometry.”

  Evaluation Of Mechanical and Biocompatibility Properties of Hydroxyapatite/Manganese Dioxide Nanocomposite Scaffolds for Bone Tissue Engineering Application DOI: 10.1016/B978-0-12-816909-4.00008-7
• Silicate 신뢰도 1.0

  “The vibration band appearing at 472 cm-1 is assigned to deformation vibrations of silicate tetrahedrons, ν4 (O-Si-O), which becomes better defined after the heat treatment of OxGC (red plot).”

  Novel Sol-Gel Route to Prepare Eu3+-Doped 80SiO2-20NaGdF4 Oxyfluoride Glass-Ceramic for Photonic Device Applications DOI: 10.3390/nano13050940
• Alkyl C-H 신뢰도 1.0

  “and Acetic 19◦ Ch XRD analysis revealed sharper peaks at (471.59 counts/s and 415.96 counts/s, Lactic”

  Physicochemical Properties and Functional Characteristics of Ecologically Extracted Shrimp Chitosans with Different Organic Acids during Demineralization Step DOI: 10.3390/molecules27238285
• 신뢰도 1.0

  “presence of iron-based and lead-based pigments, whereas in sample 4 the SEM-EDS results led us to Sample 1, whose main bands stand at 1032, 1007, 532 and 472 cm-1 (Figure 4a), shows the features think that it was basically composed of iron”

  Pigments on Roman Wall Painting and Stucco Fragments from the Monte d’Oro Area (Rome): A Multi-Technique Approach DOI: 10.3390/app10207121
• Silicon-oxygen (Si-O) 신뢰도 1.0

  “Explicit assignment: band at 472 per cm related to Si-O-Al.”

  Desulfurization of liquid fuels using aluminum modified mesoporous adsorbent: towards experimental and kinetic investigations DOI: 10.1038/s41598-021-88439-6