What absorbs at 848 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 848 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 848 cm⁻¹ is usually not enough for material identification by itself.

실제 사용

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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

• 신뢰도 1.0

  “The peak at 848 corresponds to symmetric Ti-O stretching vibrations and 6”

  Fabrication of the flexible nanogenerator from BTO nanopowders on graphene coated PMMA substrates by sol-gel method DOI: 10.1016/j.matchemphys.2017.02.002
• Sulfur 신뢰도 1.0

  “Characteristic peak for sulfur detected in co-doped diamond.”

  Li 等 - 2017 - Synthesis of n-type semiconductor diamond single c DOI: 10.1088/1757-899X/274/1/012131
• Metal oxygen 신뢰도 1.0

  “Extra bands with small intensity at around 848 cm-1 and 858 are observed in BaTiO 3-xBi 2O (C1, C2, and C3) ceramics, which are ascribed to 3 the Bi-O vibration.”

  Structural and radiation shielding properties of BaTiO3 ceramic with different concentrations of Bismuth and Ytterbium DOI: 10.1016/j.ceramint.2020.08.055
• 신뢰도 1.0

  “identified at the characteristic peak of 1362.76 The intermediate products showed a sharp peak in the range of cm-1 cm-1 to 1508.45 compared to EbP which indicates that the secondary amines, the N-H stretching band is 847.77”

  Tan 等 - 2018 - Synthesis and Characterization of Polybenzoxazine DOI: 10.1063/1.5066866
• Oxygen heterocycle 신뢰도 1.0

  “The EGMA spectrum exhibits absorption bands at 997, 910 and 848 cm-1 indicating the presence of a C═O group, as associated to the epoxy group, a band at 1730 well as the characteristic bands of PE [37,44].”

  A facile route to improve compatibilization of low density polyethylene/poly (-caprolactone) blends DOI: 10.1016/j.polymdegradstab.2022.110111
• Alkyl C-H 신뢰도 1.0

  “Results and Discussion with the spectrum of DTAT, two new peaks located at 2931 cm-1 and 2840 cm-1 (C-H of -CH2-) appeared and one peak at 848 cm-1 (C-Cl) disappeared in the PETAT spectrum, showing that a reaction had occurred between DTAT”

  The Effects of a Macromolecular Charring Agent with Gas Phase and Condense Phase Synergistic Flame Retardant Capability on the Properties of PP/IFR Composites DOI: 10.3390/ma11010111
• Alkyl C-H 신뢰도 1.0

  “S=O 1024 stretching vibration 964 Trans-C-H wagging vibration (butadiene block) 940 C-H deformation vibration of ring hydrogens 848”

  Effect of Phenolic Resin on the Rheological and Morphological Characteristics of Styrene-Butadiene Rubber-Modified Asphalt DOI: 10.3390/ma13245836
• Aromatic ring 신뢰도 1.0

  “cm-1 Additionally, the relatively intense band at 848 in sample D13 could also be assigned cm-1 to aromatic C-H vibrations.”

  Identification of Colourants and Varnishes in a 14th Century Decorated Wood-Carved Door of the Dionysiou Monastery in Mount Athos DOI: 10.3390/coatings11091087