What absorbs at 412 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 412 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.

可能性のある官能基アサイン

ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。

Possible materials

Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.

Spectrum logic

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 412 cm⁻¹ is usually not enough for material identification by itself.

Real-world usage

This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.

Common mistakes

• Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
• Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
• Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.

Verification advice

When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.

これらのアサインの根拠となる文献

• 信頼度 1.0

  “3 60,687 = = 412 3430 Weak deformation vibration O S O 411 62,778 1 59,348”

  A case study of poly (aryl ether sulfone) hemodialysis membrane interactions with human blood: Molecular dynamics simulation and experimental analyses DOI: 10.1016/j.cmpb.2020.105742
• Amide 信頼度 1.0

  “(2) disappears in had new absorption peaks at 1,640 cm-1 1,412cm-1, 1,556 and corresponding to amide I peak (1,652 cm-1),”

  Khodaei 等 - 2018 - Covalent Immobilization of Protein A on Chitosan a DOI: 10.1093/chromsci/bmy070
• 信頼度 1.0

  “For pastes with a 3:7 proportion (Fig 9a), 412 this band disappeared, which represents a complete consumption of the calcium 413”

  Moraes 等 - 2019 - Production of bamboo leaf ash by auto-combustion f DOI: 10.1016/j.conbuildmat.2019.03.007
• Hydrogen bond 信頼度 1.0

  “M412 deprotonated retinylidene SB such as seen for the BR 3 Depending on the strength of the hydrogen bonding, bands M412 transition, where the SB of is deprotonated (27).”

  Proton Transfers in a Channelrhodopsin-1 Studied by Fourier Transform Infrared (FTIR) Difference Spectroscopy and Site-directed Mutagenesis* DOI: 10.1358/dot.2011.47.1.1543306
• Alkyl C-H 信頼度 1.0

  “The and compared in the pure oil and in the deuterated fatty 349 412 cm-1 CC-H olefinic different peak from unsaturated lipids at 3008 tissues.”

  Rejasse 等 - 2022 - Plastic biodegradation Do Galleria mellonella Lar DOI: 10.1021/acs.est.1c03417
• C=n 信頼度 1.0

  “This indicated that the homogeneous complex had been prepared could be due to υ(C=N) and υ(C-O), and the bands at about 605 and 412 cm-1 were associated with successfully.”

  Base-Free Selective Oxidation of Glycerol over LDH Hosted Transition Metal Complexes Using 3% H2O2 as Oxidant DOI: 10.3390/catal6070101
• Metal oxygen 信頼度 0.9

  “Assigned to transverse optical stretching mode of ZnO.”

  Kuthirummal 等 - 2016 - Synthesis and characterization of Ar-annealed zinc DOI: 10.1063/1.4964316
• Metal oxygen 信頼度 0.9

  “Explicit assignment: 'absorption bands at 419 and 412 attributed to the Zn-O stretching vibration mode'”

  Gum Arabic As Natural Stabilizing Agent In Green Synthesis Of ZnO Nanofluids For Antibacterial Application DOI: 10.1016/j.jece.2019.103331