What absorbs at 1348 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 1348 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 1348 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

• Alkyl C-H 신뢰도 1.0

  “Component loadings indicate that POM has a tendency for higher absorbance than the cm-1, silt at the broad peak around 1348 that indicates aliphatics and phenolics.”

  Calderon 等 - 2011 - Chemical Differences in Soil Organic Matter Fracti DOI: 10.2136/sssaj2009.0375
• N-O bond 신뢰도 1.0

  “The metastable solid phase transition from the initial solid to a metastable solid phase of NaNO (cid:3)87% (cid:3)96% deliquesced completely in the region from to RH according to the fact that the (cid:2) 3cm-1 3-NO band showed two overlap”

  Lu 等 - 2008 - Molecular events in deliquescence and efflorescenc DOI: 10.1063/1.2973623(cid:5)
• 신뢰도 1.0

  “Not identified by CR isotope labeling of the of lysine, but was assigned to a related mode cm-1 with the 1348 band of BR.”

  Maeda 等 - 1999 - Chromophore-protein-water interactions in the L in DOI: 10.1021/bi9907072
• Protein 신뢰도 1.0

  “Stained sections were 1348cm1 and associated with collagen as well as the peak at”

  Maribel Mata-Miranda 等 - 2019 - Characterization of the Biological Fingerprint and DOI: 10.1155/2019/1241452
• Amide 신뢰도 1.0

  “0.0001 1452.136 1451.171 8 3 str 0.506 1401.995 9 1401.995 -COOC=O of 0.036 1345.106 10 Carboxyl groups COO and asymmetric C-N stretching 1347.998 3-)”

  Martinez-Cuazitl 等 - 2023 - Clinical, Biochemical, and ATR-FTIR Spectroscopic DOI: 10.1155/2023/3423183
• 신뢰도 1.0

  “Explicit assignment: 'characteristic peaks at ~1348 cm-1 (D band)'.”

  Effect of Iron Loading on the Catalytic Activity of Fe/N-Doped Reduced Graphene Oxide Catalysts via Irradiation DOI: 10.3390/app11010205
• N-O bond 신뢰도 1.0

  “The band experienced at 1348 can be attributed adsorption capacity of activated carbon for the adsorption to the N - O symmetric stretch in the nitro compounds.”

  Rutto 等 - 2019 - Adsorption of lead ions onto chemically activated DOI: 10.24425/aep.2019.130245
• Hydroxyl (O-H) 신뢰도 1.0

  “[37] found that the ATR-FTIR spectra of 2O 3-adsorbed 1617 cm-1, 1458 cm-1, and 436 cm-1, respectively, indicating that Fe-O, CH3/COO and -OH in HFO cm-1 humic acid showed two new bands at 1348 and 1470 during the initial time points, which”

  Removal of Tetracycline by Hydrous Ferric Oxide: Adsorption Kinetics, Isotherms, and Mechanism DOI: 10.3390/ijerph16224580