What absorbs at 1251 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 1251 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 1251 cm⁻¹ is usually not enough for material identification by itself.

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검증 조언

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이 할당의 배경이 되는 문헌

• 신뢰도 1.0

  “The moderate cm-1 belongs to N-H stretching absorption peak at 1251”

  In-doped ZnS nanoparticles: structural, morphological, optical and antibacterial properties DOI: 10.1007/s00339-021-04425-9
• Borate 신뢰도 1.0

  “cm-1 *1251 The band centered at is attributed to B-O The resulted IR data were used in this research in order to stretching vibrations in [BO 3] units from boroxol cm-1”

  Rada 等 - 2009 - Structural and electronic properties of tellurite DOI: 10.1007/s10853-009-3433-8
• Acetate 신뢰도 1.0

  “cm-1 C-O stretching 1251 cm-1”

  Influence of Polyvinyl Alcohol (PVA) on PVA-Poly-N-hydroxyethyl-aspartamide (PVA-PHEA) Microcrystalline Solid Dispersion Films DOI: 10.1208/s12249-020-01811-z
• Oxygen heterocycle 신뢰도 1.0

  “For spectrum, the main peaks located at 1251 and 877 LENR cm-1 are assigned for symmetric and asymmetric stretching of epoxide ring, respectively.”

  Azhar 等 - 2017 - Epoxidation and Hydroxylation of Liquid Natural Ru DOI: 10.17576/jsm-2017-4603-17
• Amide 신뢰도 1.0

  “resents another alternative by accurately quantifying ligand The maximum amide peaking at 1653, 1546 and 1251 cm-1 density, but such techniques require matrix digestion [50].”

  Boulet-Audet 等 - 2015 - Cleaning-in-place of immunoaffinity resins monitor DOI: 10.1007/s00216-015-8871-3)
• Acetate 신뢰도 1.0

  “the C-O-C peaks of the ester bond at 1251 and cm-1 1024 also confirm this.”

  Synthesis and Application of Tackifying Dispersant Poly (Vinyl Alcohol-Acrylic Acid-Triallyl Cyanate) DOI: 10.3390/polym14030557
• Phosphate (PO4) 신뢰도 1.0

  “Furthermore, an cm-1) ester bond in the FTIR spectra (C=O stretching at 1745 was selected for the estimation cm-1) of lipids and a phosphate functional group bond (P=O stretching at 1251 was selected for the estimation of polyphosphates.”

  Calcium Affects Polyphosphate and Lipid Accumulation in Mucoromycota Fungi DOI: 10.3390/jof7040300
• Acetate 신뢰도 1.0

  “(b) (c) and The main vibrations, where the greatest changes in the wood occurred, were identified at the peaks at 1251 cm-1, which is related to the C-O stretching vibration;”

  Moya 等 - 2022 - In Situ Synthesis of Fe3O4 Nanoparticles and Wood DOI: 10.3390/ma15093394