What absorbs at 1206 cm⁻¹ in an FTIR spectrum?

クイックアンサー

A band near 1206 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

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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 1206 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

• 信頼度 1.0

  “easily distinguish the present peak from the 1206-cm(cid:3)1 1230cm(cid:3)1 The important result here is that the broad absorption band at peak was not due to oxygen”

  Second Harmonic Vibrational Mode of Substitutional Carbon in Cast-Grown Multicrystalline Silicon DOI: 10.1143/APEX.4.051401
• Acetate 信頼度 1.0

  “All the solutions used in NMR C-O stretching 1205.99 1214.82 1396.97 ]C-H experiment were prepared in D 2O solvent.”

  Multi-spectroscopic monitoring of molecular interactions between an amino acid-functionalized ionic liquid and potential anti-Alzheimer's drugs DOI: 10.1039/d0ra06323a
• Carbohydrate 信頼度 1.0

  “In turn, in the spectrum of liver, a three 1280cm(cid:3)1, exhibits a specific triplet of bands at 1206, 1238, and bands characteristic for glycogen are observed at 1029, 1078 and however, we do not observe them in the spectra of the homoge”

  Rapid approach to analyze biochemical variation in rat organs by ATR FTIR spectroscopy DOI: 10.1016/j.saa.2013.09.131
• Aromatic ring 信頼度 1.0

  “The spectra for amlodipine besylate drug (Figure 4b) show peaks at 2964.69 for C-CH stretching, at 1698.53, 3 cm(cid:1)1 cm(cid:1)1 cm(cid:1)1 1676.11 for ester C=O stretching, at 1493.92 for aromatic skeletal stretching, at 1205.55 for Sul”

  Formulation, optimization, and characterization of amlodipine besylate loaded polymeric nanoparticles DOI: 10.1177/09673911211056154
• Phosphate (PO4) 信頼度 1.0

  “1250 Amide III (β-sheet, protein) 1235 Antisymmetric phosphate stretching 1206 C-C stretch, C-H bend”

  Growth substrate induced functional changes elucidated by FTIR and Raman spectroscopy in in-vitro cultured human keratinocytes. DOI: 10.1007/s00216-006-0876-5
• Phosphate (PO4) 信頼度 1.0

  “∼430 prominent at and 973 cm-1 for symmetric P-O stretching (ν1), cm-1 for doubly ∼1192 Materials2022,15,2924 7of16 degenerate O-P-O bending (ν2), and 1206 cm-1 for triply degenerate asymmetric P- ∼555 ∼610 O stretching (ν3), and and cm-1 f”

  Ponnusamy 等 - 2022 - Synthesis, Structural, and Mechanical Behavior of DOI: 10.3390/ma15082924
• 信頼度 0.9

  “Text: 'bands at 1735 and 1206 were characteristic of C=O and C-O stretching groups'.”

  Bio-plastic (P-3HB-co-3HV) from Bacillus circulans (MTCC 8167) and its biodegradation DOI: 10.1016/j.colsurfb.2011.11.011
• Aromatic ring 信頼度 0.9

  “Explicit assignment in text.”

  Synthesis, Characterization, and Antibacterial Potential of Poly(o-anisidine)/BaSO4 Nanocomposites with Enhanced Electrical Conductivity DOI: 10.3390/pr10091878