What absorbs at 462 cm⁻¹ in an FTIR spectrum?
A band near 462 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 462 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 |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 3 | 3 | 1.0 |
| Silicon (Si) | 3 | 3 | 1.0 |
| Metal oxygen | 3 | 2 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Silicate | 1 | 1 | 1.0 |
| Metalloid oxygen | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
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 |
|---|---|---|---|
| silica | 462, 1100, 1080 | Silicon-oxygen (Si-O), Silicon (Si), Alkyl C-H | 1 |
| Al2O3 | 462, 1722, 1383 | Metal oxygen, Alkyl C-H, Silicon (Si) | 1 |
| silica nanoparticles | 462, 1718, 2925 | Silicon-oxygen (Si-O), Silicon (Si), Alkyl C-H | 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 462 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
-
Silicon-oxygen (Si-O) 信頼度 1.0
“nanoparticles showed the symmetric Si-O and O-Si-O stretching bond vibrations at 462, 1088, and 1098 The surface area of Sm2g-1, SiO R-SiO and B-SiO nanopowders were measured to be 7.5513, 201.45, and 247.18 respectively.”
Biogenerated silica nanoparticles synthesized from sticky, red, and brown rice husk ashes by chemical method DOI: 10.1016/j.ceramint.2015.11.172 -
Silicon-oxygen (Si-O) 信頼度 1.0
“al.39 cm-1 Yan et showed that the band at 1085 should be assigned to SiO tetrahedron base breathing stretch4 cm-1 ing vibration, while the band at approximately 462 should be attributed to the O-Si-O bending mode of the SiO tetrahedron.”
Spectroscopic investigations to reveal synergy between polystyrene waste and paraffin wax in super-hydrophobic sand DOI: 10.1038/s41598-023-36987-4 -
Silicon (Si) 信頼度 1.0
“Bands occurring at 462 and 514 are assigned to mixed Si-O-Si cm-1 is due to Si-O stretching.”
Bitay 等 - 2017 - PROVENANCE STUDY ON A SMALL SELECTION OF ROMAN POT DOI: 10.24193/subbchem.2017.4.13 -
Carbohydrate 信頼度 1.0
“4）the In the ESI-MS peak with the greatglucose/ cyclic glucose C6）, 67,58, 67,78, 67,96（open chain est intensity, the Base Peak, at 461.5 corresponded to glucose C3）, 70,48（open chain glucose C4,5/ cyclic glucose m/z”
Cetinkaya 等 - 2020 - D-Glucose-fatty Acid Ester Synthesis with or witho DOI: 10.5650/jos.ess20072 -
信頼度 1.0
“showed characteristic absorpcm(cid:5)1 cm(cid:5)1 cm(cid:5)1 N-H for the amide A, bands come from the and 462.3 have phospholipids and the bands between 938.3 tion bands at 3325 cm(cid:5)1, stretching modes in proteins and nucleic acids, ba”
Phytochemical screening, polyphenols, flavonoids and tannin content, antioxidant activities and FTIR characterization of Marrubium vulgare L. from 2 different localities of Northeast of Morocco DOI: 10.1016/j.heliyon.2020.e05609 -
Metalloid oxygen 信頼度 1.0
“LLM confirmed rule peak-group candidate”
Spectroscopic properties in Er3+-doped germanotellurite glasses and glass ceramics for mid-infrared laser materials DOI: 10.1038/srep43186 -
信頼度 1.0
“There is an absorption peak was observed PbO-x%Al Figure 1 shows the FTIR spectra of 2O composites containing 10, 20, 30, 40, 3 around 462 cm-1 related to Pb-O stretching [33], which is observed in pure PbO, whereas, 50, 60, and 100% Al 2O”
Mebed 等 - 2022 - Controlling the Structural Properties and Optical DOI: 10.3390/catal12020142 -
Silicate 信頼度 1.0
“DTA-TG results for 98-day curing time (Z-Series) cm-1 The peaks at 462 were indicative of silicate structure peaks.”
Sola 和 Ozyazgan - 2019 - Analyses of cement mortars containing reclaimed as DOI: 10.14256/JCE.1607.2016
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。