What absorbs at 568 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 568 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

동일한 문헌 풀이 이 밴드와 하나 이상의 추가 특징 피크를 지원하는 경우에만 물질이 표시됩니다.

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 568 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.
• 겹침 무시: 여러 작용기가 동일한 파수 근처에서 기여할 수 있습니다.
• 첨가제, 혼합물, 산화 또는 오염이 스펙트럼을 왜곡할 수 있는 경우 검증을 건너뜁니다.

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

• Water (H2O) 신뢰도 1.0

  “Molecular water would leave the HA crystal absorption band for molecular water onto the O-H peak at 3,568cm-1 structure through the termination sites of the c-axes channels at (Figure 10) possibly resulted in a misinterpretation 100°C.”

  Li 等 - 2023 - Fourier-transformed infrared spectroscopy study of DOI: 10.3389/feart.2022.1008139
• 신뢰도 1.0

  “These two bands were the result of a split in the of the bulk Fe 3O 1 4 at 568 cm-1 corresponded to the υ(Fe-O) lattice stretching vibration of magnetite (Fe 3O 4) cm-1,”

  Mesoporous Magnetic Cysteine Functionalized Chitosan Nanocomposite for Selective Uranyl Ions Sorption: Experimental, Structural Characterization, and Mechanistic Studies DOI: 10.3390/polym14132568
• Silicon-oxygen (Si-O) 신뢰도 1.0

  “For sand, no weight 302 loss was observed and only one endothermic peak, at 568°C, associated with the allotropic a b 303 transformation of quartz into quartz , was observed.”

  Cousture 等 - 2021 - Study of a binder based on alkaline activated lime DOI: 10.1016/j.conbuildmat.2007.10.015
• Metal oxygen 신뢰도 1.0

  “The bands at 568 and 533 correspond to the vibration of cm-1 cm-1 = V-O [44].”

  Transition Metal Oxodiperoxo Complex Modified Metal-Organic Frameworks as Catalysts for the Selective Oxidation of Cyclohexane DOI: 10.3390/ma13040829
• Silicon-oxygen (Si-O) 신뢰도 1.0

  “The band at 568 and vibration of lazurite and O-Si-O symmetric stretching vibration of wollastonite [61].”

  Ma 等 - 2019 - Investigation of the Optical, Physical, and Chemic DOI: 10.3390/su11143803
• 신뢰도 1.0

  “New peak assignable to Pd-N.”

  Nasaruddin 等 - 2022 - Synthesis, Structural Characterization, Hirshfeld DOI: 10.1021/acsomega.2c04688
• Phosphate (PO4) 신뢰도 1.0

  “from respective PO groups at 1069 and 1081 cm-1 43- (ν ν ν From the O-P-O bending mode PO at 568 cm-1) (for PO and Si-O-Si) [50-52,71], 452, 465 and 43434 3 as (ν ν ν and P-O stretching modes 961 cm-1 PO at 963 cm-1, PO (for PO 43-) [50,51,”

  Radev 等 - 2009 - OrganicInorganic bioactive materials Part II in DOI: 10.2478/s11532-009-0076-1
• Silicon (Si) 신뢰도 1.0

  “described that the peaks centered at From literature data, the bands at 568, 600, 960, 1043 cm-1 455 are associated with the presence of ν Si-O-Ca ν ν ν 43-, 43cm-1 and 1008 correspond to PO PO and 4 1”

  Radev 等 - 2010 - OrganicInorganic bioactive materials Part IV In DOI: 10.2478/s11532-009-0142-8