What absorbs at 455 cm⁻¹ in an FTIR spectrum?
A band near 455 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 455 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 |
|---|---|---|---|
| Metal oxygen | 6 | 6 | 1.0 |
| Silicon-oxygen (Si-O) | 3 | 3 | 1.0 |
| Siloxane (Si-O-Si) | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Carbon dioxide | 1 | 1 | 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 |
|---|---|---|---|
| TiO2 | 455, 1700, 1093 | Metal oxygen, Hydroxyl (O-H) | 1 |
| TiO2 nanoparticles | 455, 1700, 1535 | Hydroxyl (O-H), Metal oxygen | 1 |
| silica | 455, 1100, 1080 | Silicon-oxygen (Si-O), Hydroxyl (O-H), Siloxane (Si-O-Si) | 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 455 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
“2 30 eV.36 to give rise to a peak at 455 A significant band ascribed to a Ti-O-C bond was observed at 31 32”
Surface Grafting of Ru(II) Diazonium-Based Sensitizers on Metal Oxides Enhances Alkaline Stability for Solar Energy Conversion DOI: 10.1021/acsami.7b16641 -
Metal oxygen 信頼度 1.0
“assigned to apical oxygen vibrations”
Khan 等 - 2004 - Effects of post-annealing on the infrared active p DOI: 10.1016/j.physc.2004.04.029 -
信頼度 1.0
“The disordered natureof the rutile lattice and the signalwith ag value of 1.98 inthe ESR spectrum of SnO fluoride enormous oxygen vacancies created due to ion doping were evident from the broad bands observed at 455, 588, and cm(cid:1)1”
Kumar 等 - 2011 - Optical and Photocatalytic Properties of Heavily F DOI: 10.1021/ic2003436 -
Silicon-oxygen (Si-O) 信頼度 1.0
“The pumice XRD pattern coated with and ZrO nanoparticles shows the main and derivative elements of TiO 2 2 pumice, including pyroxene, magnetite feldspar mica, and SiO 2.FTIR spectra for TiO and ZrO nanoparticles showed that the peaks at 45”
Efficiency of the catalytic ozonation processes using nanoparticles deposited on pumice in the remov DOI: 10.1080/03067319.2021.1903453 -
Metal oxygen 信頼度 1.0
“LLM confirmed rule peak-group candidate”
Wang 等 - 2018 - Coloration and Decoloration of Textiles Using a Ti DOI: 10.1007/s12221-018-1134-0 -
Hydroxyl (O-H) 信頼度 1.0
“Fritsch et al.: OH stretching vibrations in serpentines 455 2M 3.2.2 OH stretching modes in antigorite inner OH in an Mg environment.”
Fritsch 等 - 2021 - Structural, textural, and chemical controls on the DOI: 10.5194/ejm-33-447-2021 -
信頼度 1.0
“The low frequency contributions (~455 cm-1) (~455 and ~800 are bending modes of the Si-O bonds, whereas the high-intensity and ~800 cm-1) are bending modes of the Si-O bonds, whereas the high-intensity band at and ~800 cm-1) are bending mod”
Len 等 - 2021 - Physicochemical Characterization and Drug Release DOI: 10.3390/ijms22179197 -
Metal oxygen 信頼度 1.0
“4 cm-1 widening in the 1150-1000 region due to overlapping of stretching vibrations of spectively), 576 cm-1 (vibrations of double-ring external linkage), and 455 cm-1 (bending functional Si/Al-O and stretching vibrations of C-C/C-O-C pecti”
Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications DOI: 10.3390/foods11030360
このバンドを持つスペクトルがありますか？
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