What absorbs at 982 cm⁻¹ in an FTIR spectrum?

クイックアンサー

A band near 982 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。

可能性のある材料

同じ文献プールがこのバンドと少なくとも1つの追加の特性ピークをサポートする場合にのみ、材料が表示されます。

スペクトルロジック

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

実使用例

この種のクエリは、ポリマー識別、未知のプラスチックスクリーニング、QCトラブルシューティング、リサイクル材料の検証、および文献に基づいたピーク帰属のレビューで一般的です。

よくある間違い

• 少なくとも1～2つの支持ピークを確認せずに、1つの孤立したバンドを材料の証拠として扱うこと。
• 重複を無視: 複数の官能基が同じ波数付近に寄与することがあります。
• 添加剤、ブレンド、酸化、または汚染がスペクトルを歪める可能性がある場合に検証を省略すること。

検証アドバイス

曖昧さが残る場合は、特にブレンド、劣化サンプル、充填ポリマーについて、DSC、GC-MS、またはTGAで仮説を検証してください。

これらのアサインの根拠となる文献

• N-O bond 信頼度 1.0

  “level understanding of the thermomechanical properties of a cm-1, No corresponding shift was observed for the peak at 982 broader range of polymer materials in nano-thin regime.”

  Kollath 和 Karan - 2016 - New molecular scale insights into the alpha-transi DOI: 10.1039/C6CP04457C.
• Phosphate (PO4) 信頼度 1.0

  “XRD patterns show the presence of peaks at = 982, and 892 ascribed to (P-O), (W-O) and”

  Visible light absorption of TiO2 materials impregnated with tungstophosphoric acid ethanol–aqueous solution at different pH values. Evidence about the formation of a surface complex between Keggin anion and TiO2 surfaces DOI: 10.1016/j.materresbull.2013.09.043
• 信頼度 1.0

  “cm-1 cm-1, 1605 and 3383-3601 being assigned to the vibrational modes of the deformation IR bands of PTA situated at 523 cm-1, 594 cm-1, 797 cm-1, 891 cm-1, 982 cm-1, 1080 cm-1, 1605 (O corresponds to corner oxygen atoms), W-O e-W stretchin”

  The Photoluminescence and Vibrational Properties of Black Phosphorous Sheets Chemically/Electrochemically Functionalized in the Presence of Diphenylamine DOI: 10.3390/polym14214479
• Alkyl C-H 信頼度 1.0

  “aromatic group in strong (C-H bend stretch, aliphatic amines group in medium (C-N stretch, 1055.96, 1038.12cm-1), alkenes group in strong (C-H rock, 981.81, 726.78cm-1), and alkyl halides group in medium (C-Br 567.83cm-1).”

  Baranitharan 等 - 2022 - Fabrication of Silver Nanoparticles Using Fimbrist DOI: 10.1155/2022/4083663
• Alkyl C-H 信頼度 1.0

  “(8) cm´1 cm´1 In Figure 4 the peaks obtained in FTIR at 982 and 1345 are assigned to C-H bending cm´1 and C-O-C symmetrical stretching vibrations, while the peak observed at 1585 originates ʋ where c is speed of light, is vibrational freque”

  Temperature-Dependent Magnetic Response of Antiferromagnetic Doping in Cobalt Ferrite Nanostructures DOI: 10.3390/nano6040073
• 信頼度 0.9

  “Explicit assignment: 'absorption peak corresponding to Keggin-type HPW emerge 982cm-1, 889cm-1, 801cm-1'”

  Zhang 等 - 2021 - Bimetallic MOF-Derived Synthesis of Cobalt-Cerium DOI: 10.1155/2021/2131960
• Siloxane (Si-O-Si) 信頼度 0.5

  “Explicit assignment in text: '798cm-1 was the Si-O-Si' but 982 not explicitly assigned; however context suggests Si-O-Si related.”

  Preparation and Characterization of Manganese Slag and Fly Ash-based Geopolymer DOI: 10.1051/matecconf/201713004006