What absorbs at 868 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 868 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.

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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 868 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

• C c single bond 신뢰도 1.0

  “cm-1) cm-1), cm-1).9, 10 CH stretching (954 and C-C vibration (868 -CHbending (754 and 1383 cm-1 The peak at 872 observed in all samples which is due to C-C stretching and featured for cm-1 amorphous properties of films.”

  Ghosh 等 - 2020 - Blown films fabrication of poly lactic acid based DOI: 10.1016/j.mtcomm.2019.100737
• 신뢰도 1.0

  “In the FTIR analysis, a dominant peak at 868 wavenumbers Keywords: corresponding to the longitudinal optical (LO) mode of monoclinic TiO2phase was observed at 10% oxygen TiO2”

  Structural and optical properties investigation of DC magnetron sputtered β-TiO2 thin film DOI: 10.1016/j.apsusc.2014.08.131
• Carbonate 신뢰도 1.0

  “FTIR spectra establishes a particular Calcite - Zincite nano powder obtained the characteristic peak of carbonate group at 1414 cm-1, 868 cm-1 (CaCo3) and 477 cm-1 (ZnO).”

  Kumar 等 - 2020 - Synthesis of calcite-zincite nano composite materi DOI: 10.1088/1757-899X/1003/1/012132
• Nitrogen heterocycle 신뢰도 1.0

  “Moreover, a catalytic and the peaks at 1355 and 1523 correspond structure.16 effect was observed when alumina fillers were added, as shown to triazine ring in poly(triazine) The peaks at 868”

  Tay 等 - 2022 - Simultaneous Enhancement of Polymerization Kinetic DOI: 10.1021/acsomega.2c02667
• Acetate 신뢰도 1.0

  “The bands at about 1436 and 1728 are C=O to P-O bending (crystalline) and P-O bending (amorphous), associated with C-O (Stretch) and (Stretch) stretching cm-1 cm-1 band respectively, presence of C-O stretching at 868 modes, respectively, an”

  Vyas 等 - 2016 - Effect of nickel oxide substitution on bioactivity DOI: 10.1007/s12034-016-1242-7
• 신뢰도 1.0

  “The new characteristic peaks at 3732 3672 32CO istic peaks of group in pure bastnaesite spectrum are 729 cm-1, 868 cm-1, 1087 cm-1 cm-1 and 3648 of bastnaesite treated with NHA are caused by the tensile vibration of N-H”

  Selective Adsorption of 2-Hydroxy-3-Naphthalene Hydroxamic Acid on the Surface of Bastnaesite and Calcite DOI: 10.3390/min12111341
• Aromatic ring 신뢰도 1.0

  “The peak of 868 cm-1 is assigned to the aromatic nucleus (C-H), and one adjacent H deformation.”

  Zhao 等 - 2022 - Differences in Macromolecular Structure Evolution DOI: 10.3390/en15155334
• 신뢰도 0.9

  “Explicit assignment in text.”

  Fabrication and Characterization of Activated Carbon from Phyllostachys edulis Using Single-Step KOH Activation with Different Temperatures DOI: 10.3390/pr10091712