What absorbs at 1292 cm⁻¹ in an FTIR spectrum?
A band near 1292 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
クイックアンサー
A band near 1292 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
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Secondary amine | 4 | 3 | 1.0 |
| C n single bond | 3 | 2 | 1.0 |
| Amide | 3 | 2 | 1.0 |
| C-O single bond | 3 | 2 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| C c single bond | 2 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Fluorine (C-F) | 1 | 1 | 1.0 |
| Thiocarbonyl | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 0 | 1.0 |
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
| 素材 | 補助ピーク | 重複グループ | 引用元 |
|---|---|---|---|
| polyurethane | 1292, 2270, 1700 | C-O single bond, Amide | 1 |
| graphene oxide | 1292, 1150, 3400 | C-O single bond | 1 |
| cotton fabric | 1292, 900, 862 | C-O single bond, Amide | 1 |
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 1292 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
-
Amide 信頼度 1.0
“þ A A f c cm-1), cm-1), C=O stretching (1638 CH wagging (1437 and 2 cm-1) C-N stretching (1292 of optimized sample CPN-0 a Fig.”
Jothi 等 - 2021 - Proton conducting polymer electrolyte based on cor DOI: 10.1007/s11581-020-03792-2 -
Ring structure 信頼度 1.0
“C-O-C glycosidic linkage vibration (Sym) 1127 C-O-C bridging vibration 1147 C-C ring vibration 1292”
Cuiffo 等 - 2021 - Thermochemical degradation of cotton fabric under DOI: 10.1186/s40691-021-00263-8 -
C-O single bond 信頼度 1.0
“6c, at RH, the shoulder peaks red shift from 1344 to implying that only the 1695cm-1 ν(C=O) located at 1718 and are attributed to of NaNO component effloresces, and GA cannot be crystal3 1292cm-1 ν(C-O) crystalline GA, and the band at and r”
Ma 等 - 2022 - A comprehensive study on hygroscopic behaviour and DOI: 10.5194/acp-22-10955-2022 -
Acetate 信頼度 1.0
“cm-1 cm-1 related to C-C and C-O stretching at 1292 and 1044 and bands at 1240 from C-O-C cm-1 asymmetric stretching and at 1168 from C-O symmetric stretching are observed.”
Synthesis and Characterization of Inulin-Based Responsive Polyurethanes for Breast Cancer Applications DOI: 10.3390/polym12040865 -
信頼度 1.0
“Similarly, the peaks at 1292.27 and 1042.70 correspond to the stretching vibration type of strong fluoro compound and medium amine groups, respectively.”
Isolation and Characterization of a Novel Actinomycete Isolated from Marine Sediments and Its Antibacterial Activity against Fish Pathogens DOI: 10.3390/antibiotics11111546 -
Amide 信頼度 1.0
“The peak at 1292 cm-1 is assigned to the C-N bending vibration [37], while the ones at 1037 cm-1 and 694 cm-1 correspond to the presence of Si-O-Si and Si-O-C on the graphene sheets surface [9].”
Synthesis and Characterization of Some Graphene Oxide Powders Used as Additives in Hydraulic Mortars DOI: 10.3390/app112311330 -
Aromatic ring 信頼度 1.0
“The band at 1292 belongs to the aromatic Table 3 FTIR assignments for the NaOH-catalyzed reaction secondary amine.”
Santiago-Medina 等 - 2017 - Polycondensation Resins by Lignin Reaction with (P DOI: 10.7569/JRM.2017.634142 -
Phosphate (PO4) 信頼度 0.9
“Explicit assignment: '1292 cm21' associated with same group”
Gajjar 等 - 2014 - Histology Verification Demonstrates That Biospectr DOI: 10.1371/journal.pone.0082416
このバンドを持つスペクトルがありますか？
FTIRスペクトルをアップロードすると、数秒で完全な解釈レポート（文献引用付きピークアサイン、ライブラリマッチ、信頼度評価付き証拠チェーン）を取得できます。