What absorbs at 3316 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 3316 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 3316 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

  “cm-1 cm-1 and remaining OH groups at 3316 The C-H stretches was observed at 2926 and 2854 cm-1, cm-1 cm-1 followed by peaks at 1511 1213 and 1068 which indicates the urethane linkages of N-”

  Norshahli 等 - 2018 - Mechanical Properties of Palm Oil Polyol based Pol DOI: 10.1088/1742-6596/1082/1/012041
• 신뢰도 1.0

  “The peak at 3316 cm-1 (observed in mushrooms produced in WS, cm-1 3313 and 3301 for GM and OL, respectively) can be attributed to the N-H stretching vibration and shifted to 3313 and 3301 cm-1 for GM and OL, respectively) can be attributed”

  Pleurotus Mushrooms Content in Glucans and Ergosterol Assessed by ATR-FTIR Spectroscopy and Multivariate Analysis DOI: 10.3390/foods9040535
• 신뢰도 1.0

  “The stretching vibrations of N-H in the Fermi resonance, which ocapproximately 3316 The stretching vibrations of N-H in the Fermi resonance, which curred at around 2932 cm-1, formed amide B bands.”

  Functionalised Hybrid Collagen-Elastin for Acellular Cutaneous Substitute Applications DOI: 10.3390/polym15081929
• Hydroxyl (O-H) 신뢰도 1.0

  “(cm-1) Wavenumbers Assignment 3316 O-H stretching vibration 2900”

  Incorporation of In Situ Synthesized Nano-Copper Modified Phenol-Formaldehyde Resin to Improve the Mechanical Properties of Chinese Fir: A Preliminary Study DOI: 10.3390/polym13060876
• Hydroxyl (O-H) 신뢰도 1.0

  “For all samples, peaks between 3289 cm-1 and 3316 cm-1 were observed, which relate to the stretching of hydroxyl (OH) groups due to the formation of hydrogen bonds [50].”

  Encapsulation of Concentrated Solution Obtained by Block Freeze Concentration in Calcium Alginate and Corn Starch Calcium Alginate Hydrogel Beads DOI: 10.3390/gels9050374
• 신뢰도 1.0

  “1256 C-N stretching of aromatic amine 5 714 C-Cl stretching cm-1 As can be seen in Figure 8, the spectra exhibited a distinctive peak at 3316 due”

  Preparation and Physicochemical Characterization of a Diclofenac Sodium-Dual Layer Polyvinyl Alcohol Patch DOI: 10.3390/polym13152459
• Hydroxyl (O-H) 신뢰도 1.0

  “Characteristic peaks were found at 1631.40 and 3316.43 The vibrational band at cm-1 3316.43 indicated O-H stretching due to the involvement of phenol or alcohol as a cm-1 functional group, whereas the stretching band at 1631.40 represented”

  Development of Iron Nanoparticles (FeNPs) Using Biomass of Enterobacter: Its Characterization, Antimicrobial, Anti-Alzheimer’s, and Enzyme Inhibition Potential DOI: 10.3390/mi13081259
• N h 신뢰도 1.0

  “The BZ structure (signals at 1222 and 948 cm-1) remained for the uncured Por-BZ/Ni and cm-1 Meanwhile, the signal at 3316 for NH stretching of the pyrrole ring had disappeared, Por-BZ/Zn complexes.”

  Zhang 等 - 2022 - Metal Complexes of the Porphyrin-Functionalized Po DOI: 10.3390/polym14030449