What absorbs at 3304 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 3304 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 3304 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

• Hydroxyl (O-H) 신뢰도 1.0

  “The O-H stretching frequency is related to the cm-1 stretching frequency is related to the band at 3304 cm-1 which confirms the CA sample as band at 3304 which confirms the CA sample as partially acetylated cellulose [54].”

  TiO2 Nanoparticle Filler-Based Mixed-Matrix PES/CA Nanofiltration Membranes for Enhanced Desalination DOI: 10.3390/membranes11060433
• Hydroxyl (O-H) 신뢰도 1.0

  “LLM confirmed rule peak-group candidate”

  Chen 等 - 2021 - Synthesis of Novel Arginine-Based Flame Retardant DOI: 10.3390/molecules26123588
• Hydroxyl (O-H) 신뢰도 1.0

  “The FTIR spectrum of the mushroom extract showed cm-1 a medium peak at 3304 corresponding to H-bonded -OH stretch carboxylic acids and -CH stretch alkene;”

  Efficacy of mycosynthesised AgNPs from <i>Earliella scabrosa</i> as an <i>in vitro</i> antibacterial and wound healing agent DOI: 10.1049/iet-nbt.2018.5237
• Hydroxyl (O-H) 신뢰도 1.0

  “In GG: cm-1 case of GG, a broad band at 3304 due to the presence of OH stretching was observed, a sharp absorption band located at”

  Raghavendra 等 - 2013 - Cellulose-polymer-Ag nanocomposite fibers for anti DOI: 10.1016/j.carbpol.2012.12.035
• Hydroxyl (O-H) 신뢰도 1.0

  “cm-1 The 3304 absorbance band could also be related to OH group vibrations.”

  Rahmawati 等 - 2020 - Isolation and Identification of Fungi Inhabiting R DOI: 10.1002/bit.260230921
• 신뢰도 1.0

  “The of ANI with AA and the The prepolymerization solution containing ANI, AA, and interaction of the template with the monomers paved the melamine (MA) showed shifted and new peaks at 3304, 1634, cm-1 film N-H preparation of the melamine-im”

  Regasa 等 - 2020 - Development of Molecularly Imprinted Conducting Po DOI: 10.1021/acsomega.9b03747
• Hydroxyl (O-H) 신뢰도 1.0

  “LLM confirmed rule peak-group candidate”

  Wang 等 - 2022 - Biosynthesis and Structural Characterization of Le DOI: 10.21203/rs.3.rs-511002/v2
• 신뢰도 1.0

  “Absorbance peaks at 3304 cm-1 represent the stretching vibrations of N-H [24].”

  Zhou 等 - 2017 - Regenerable Antibacterial Cotton Fabric by Plasma DOI: 10.3390/coatings7010011