What absorbs at 528 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 528 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 528 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

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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

• Metal oxygen 신뢰도 1.0

  “Moreover, the two total follows: intensity of O 1s peak at 528.3 eV for MnFe 2O sample is decreased 4 due to the increase in covalently bonded metal oxygen atoms;”

  Attestation in self-propagating combustion approach of spinel AFe2O4 (A=Co, Mg and Mn) complexes bearing mixed oxidation states: Magnetostructural properties DOI: 10.1016/j.apsusc.2016.04.177
• N h 신뢰도 1.0

  “The 528 band is assigned to the strong coupling of the oxide cm-1 lattice in hydrated WO 3•nH 2O material [18].”

  Martinez-Juarez 和 Diaz-Reyes - 2008 - A method for deposition of tungsten trioxide (WO3) DOI: 10.1117/12.815958
• Hydroxyl (O-H) 신뢰도 1.0

  “874.1 P-O-P asymmetric stretching bond 792.0 P-O-P asymmetric stretching bond 577.1 (H-O-) P=O bond (strong absorption) acid phosphates 527.7 (H-O-) P=O bond (strong absorption) acid phosphates Table 2 FT-Raman wavenumbers and vibrations as”

  Growth and characterization of calcium hydrogen phosphate dihydrate crystals from single diffusion gel technique DOI: 10.1002/crat.200900700
• Acetate 신뢰도 1.0

  “The peaks at ~528.2 eV (observed only in DLC film) and at ~535.8 eV (labeled as a vertical bar) are related to the C=O k* bands, which were argued to indicate the presence of carbon oxide contaminants of carbonyl groups [22].”

  Ray 等 - 2005 - Electronic structure and hardening mechanism of Si DOI: 10.1016/j.tsf.2004.11.152
• Alkene (C=C) 신뢰도 1.0

  “The large peak from the NO stretching 1,350cm-1, vibration was observed at and the peak from the C=C stretching mode of the nitrate-bound form of the 1,528cm-1.”

  Furutani 等 - 2013 - Development of a rapid Buffer-exchange system for DOI: 10.2142/biophysics.9.123
• 신뢰도 1.0

  “http://pubs.acs.org/journal/acsodf Article cm-1 Ni-O fingerprint indicates bonds in the region for the sample.40,41 NiO nanosheet The absorption bands at 527.7 and”

  Gawai 等 - 2022 - Microwave-Assisted Coprecipitation Synthesis and L DOI: 10.1021/acsomega.1c06179
• Alkyl C-H 신뢰도 1.0

  “ous solution and stabilized by a capping agent like proteins secreted by The overall result of FTIR spectra indicated that different organic groups OH, C-H, C=O, C=C and C-O were present which act as a capping agent in iron oxide nanopartic”

  Biosynthesized Iron Oxide Nanoparticles (Fe3O4 NPs) Mitigate Arsenic Toxicity in Rice Seedlings DOI: 10.3390/toxics9010002
• 신뢰도 0.9

  “Text lists band at 528 as one of the five bands from sputtering, attributed to Co3O4.”

  Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation DOI: 10.3390/catal9100806