What absorbs at 3210 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 3210 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 3210 cm⁻¹ is usually not enough for material identification by itself.

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이 할당의 배경이 되는 문헌

• 신뢰도 1.0

  “The primary N-H bonds peaking at 3210”

  Miyazaki 等 - 2005 - Properties of radio-frequency-sputter-deposited Ga DOI: 10.1063/1.1888027g
• Hydroxyl (O-H) 신뢰도 1.0

  “The absorption at ~3210 assigned to wagging vibrations hydrogen-bonded hydroxyl group vibrations (poly -OH1).”

  Influences of Ash-Existing Environments and Coal Structures on CO2 Gasification Characteristics of Tri-High Coal DOI: 10.3390/pr8111367
• Water (H2O) 신뢰도 1.0

  “However, after eight months (Figure 5b), the mixtures with 5 and 10% of water showed new peaks (3346 and 3208 cm-1, and 3344 and 3210 cm-1, respectively) in the OH region, probably due to the crystallization Molecules2022,27,8310”

  Elaboration and Characterization of Natural Deep Eutectic Solvents (NADESs): Application in the Extraction of Phenolic Compounds from pitaya DOI: 10.3390/molecules27238310
• 신뢰도 1.0

  “Spectral Characteristics of Inorganic Ions in Aerosols PM N-H bond absorbance bands at approximately 3210 and samples were collected on filters, then analyzed”

  Wei 等 - 2019 - Aerosol Pollution Characterization before Chinese DOI: 10.4209/aaqr.2018.06.0226
• Hydroxyl (O-H) 신뢰도 1.0

  “height in horizontal/vertical direction of the infrared polar3210, and 3060 These bands are ascribed to intrinsic izer, indicating that this material is homogenous in both its OH in aluminous orthopyroxene (Beran and Zemann 1986;”

  Water contents of nominally anhydrous orthopyroxenes from oceanic peridotites determined by SIMS and FTIR DOI: 10.1007/s00710-021-00757-9
• 신뢰도 1.0

  “Compared with the spectra of the reaction monomers MAA and DOPA, in the FTIR spectra of L-DMA, the absorption peaks of methacrylic anhydride in MAA at 1787 and cm-1 cm-1, 1725 had obviously disappeared and changed into a single peak of C=O”

  Bionic Synthesis of Mussel-like Adhesive L-DMA and Its Effects on Asphalt Properties DOI: 10.3390/ma15155351