What absorbs at 507 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 507 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 507 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

  “But the sample annealed at 800 has weak peak emerged at 507 which is related to nitrogen related local vibration as reported in the reference [26].”

  Enhancement of Al-N co-dopant solubility in ZnO by high temperature thermal annealing DOI: 10.1016/j.ceramint.2018.10.005
• 신뢰도 1.0

  “A around 507 cm-1 is clearly observed in Figure 2 and can be attributed to Au and Bu vibracm-1”

  Surface Morphology and Optical Properties of Hafnium Oxide Thin Films Produced by Magnetron Sputtering DOI: 10.3390/ma16155331
• C c single bond 신뢰도 1.0

  “506 In situ FTIR spectroscopy has revealed that the three 507 472 to a C-C stretching of benzenoid rings.”

  Benyoucef 等 - 2005 - Synthesis and in situ MRS characterization of cond DOI: 10.1016/j.eurpolymj.2004.10.047
• Silicon hydride 신뢰도 1.0

  “cm(cid:0) C-- 1 C stretching peak at 1640 attenuated or disappeared, whereas On the FTIR spectrum for the activated CoCr surface, the disappearance (CoCr-OH-Si45-GO12h, emerged in all incubated multilayer systems of chromium oxide (III) rel”

  Covalent immobilization of graphene oxide on biomedical grade CoCr alloy by an improved multilayer system assembly via Silane/GO bonding DOI: 10.1016/j.matchemphys.2022.126296
• Metal oxygen 신뢰도 1.0

  “Pressure (MPa) 0.1 122.38 305.34 399.23 517.59 606.87 (cm-1) 432.33 433.02 433.20 433.50 433.50 434.83 M-O vibrational peak (cm-1) AlIV-O-Si 507.27 507.43 507.80 508.46 508.13 509.46 vibrational peak (cm-1)”

  The Behavior of Water in Orthoclase Crystal and Its Implications for Feldspar Alteration DOI: 10.3390/cryst12081042
• Metal oxygen 신뢰도 0.9

  “Fe-O stretching and bending”

  Jalandhara 等 - 2016 - Effect of Sintering Temperature on the Optical Pro DOI: 10.1063/1.4946488
• 신뢰도 0.8

  “Explicit assignment in text.”

  Phytochemical screening, polyphenols, flavonoids and tannin content, antioxidant activities and FTIR characterization of Marrubium vulgare L. from 2 different localities of Northeast of Morocco DOI: 10.1016/j.heliyon.2020.e05609
• 신뢰도 0.6

  “Text: 'at 1004, 825, and 507'”

  Characterisation of the Bioactivity and the Solubility of a New Root Canal Sealer DOI: 10.1016/j.identj.2023.04.003