What absorbs at 537 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 537 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

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가능한 재료

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스펙트럼 로직

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 537 cm⁻¹ is usually not enough for material identification by itself.

실제 사용

이러한 유형의 질의는 고분자 식별, 미지 플라스틱 스크리닝, QC 문제 해결, 재활용 재료 검증 및 문헌 기반 피크 할당 검토에서 일반적입니다.

일반적인 실수

• 하나의 고립된 밴드를 재료의 증거로 취급하고 최소 하나 또는 두 개의 지원 피크를 확인하지 않는 것.
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검증 조언

모호성이 남아 있는 경우, 특히 혼합물, 분해된 시료 및 충전 폴리머의 경우 DSC, GC-MS 또는 TGA로 가설을 검증하십시오.

이 할당의 배경이 되는 문헌

• Carbonyl (C=O) 신뢰도 1.0

  “In the O 1s scan of PAA the peak at 537 eV was attributed to the presence of carbonyl and hydroxyl groups of the carboxylic group as shown in Fig.”

  Fareed 和 Stamboulis - 2014 - Nanoclays reinforced glass ionomer cements disper DOI: 10.1007/s10856-013-5058-3
• 신뢰도 1.0

  “cm-1 peak at 537 develops due to the Cu-O stretching which corresponds to the B mode [35].”

  Rapid analyses of stress of copper oxide nanoparticles on wheat plants at an early stage by laser induced fluorescence and attenuated total reflectance Fourier transform infrared spectroscopy DOI: 10.1016/j.vibspec.2017.06.004
• 신뢰도 1.0

  “cm-1 at 422 and 410 The increase in the intensity of the absorption band at 537 could be attributed to an incorporation of zinc ions in the tetrahedral site depending on the preference of these ions for this site.”

  Effects of Zinc Substitution on the Microstructural and Magnetic Characteristics of Cubic Symmetry Nickel Ferrite System DOI: 10.3390/sym15050975
• 신뢰도 1.0

  “The peak at 910 corresponded to the bending vibrations of the cm-1 The peaks at 537 and 467 corresponded to the deformation vibrations of the Al-O-Si”

  Enhancing the Thermal Stability of Ionogels: Synthesis and Properties of Triple Ionic Liquid/Halloysite/MCC Ionogels DOI: 10.3390/molecules26206198
• Sulfonate 신뢰도 1.0

  “The peaks for SO3 bending and rocking were obtained at 537 cm-1 and 413 cm-1, 3 cm-1, 413 respectively [16].”

  Anis 等 - 2023 - Studies on Polybenzimidazole and Methanesulfonate DOI: 10.3390/polym15132821
• 신뢰도 1.0

  “- the appearance of new bands from 1115 (of high intensity) and 537 cm-1 were assigned to silica and other oxides from FA, as seen in Figure 3.”

  The Influence of Fly Ash on the Mechanical Properties of Water Immersed All Waste Composites DOI: 10.3390/polym14101957
• Amide 신뢰도 1.0

  “cm(cid:5)1 cm(cid:5)1 and 607.7 stretching, and absorption bands between 1479.1 TheFTIRspectrumwasusedtoidentifythefunctionalgroupofactive cm(cid:5)1 are characteristic of the amide II region and bands from 536.9 to componentsbasedonthepeak”

  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 1.0

  “The rGO (rGO) impregnated with magnetic Fe 3O showed an 4 cm-1", additional peak at "537 which gives a clear identification of the Fe-O-Fe bond [37].”

  Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption DOI: 10.3390/ma14226923