What absorbs at 428 cm⁻¹ in an FTIR spectrum?
A band near 428 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 428 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 | 4 | 4 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 0.7 |
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 | 428, 1700, 1093 | Metal oxygen | 1 |
| nanoparticles | 428, 1732, 1647 | Metal oxygen | 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 428 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
-
Metal oxygen 信頼度 1.0
“The peaks located at 493, 443 and cm-1 428 is likely due to the vibration of the TiO 2, which confirms the prepared sample is TiO nanostructures.”
Synthesis and Characterization of Spindle-Like TiO2 Nanostructures and Photocatalytic Activity on Methyl Orange and Methyl Blue Dyes Under Sunlight Radiation DOI: 10.1007/s10876-017-1245-6 -
信頼度 1.0
“The peaks at 1124 and 428 cm-1 are the typical absorption peaks of the Zn-O bond,”
Kumar 等 - 2021 - Centella asiatica mediated facile green synthesis DOI: 10.1016/j.inoche.2021.108865 -
Water (H2O) 信頼度 1.0
“hydroxyl group and water Silicaandsilicates;aluminumoxyhydroxide 7 1099 Si-Ostretch;OHvibration andironoxyhydroxides 4 1681 Stretching Water molecules SO428 665”
The Physico-Chemical and Mineralogical Characterization of Mg-Rich Synthetic Gypsum Produced in a Rare Earth Refining Plant DOI: 10.3390/su13094840 -
信頼度 1.0
“After calcinalamp (HWL 500 W 225 V E40) was purchased from the OSRAM tion, all the characteristic peaks of the ligand disappeared and Company in China and the short wavelength components of the only a peak at 428 cm-1, which is attributed t”
Bijanzad 等 - 2015 - Photocatalytic activity of mesoporous microbricks DOI: 10.1016/S1872-2067(14)60305-3 -
信頼度 1.0
“the sharpness of these bands fairly cm-1, cm-1 428 can be attributed to Fe-O symmetric stretching indicate lack of defects and crystal purity.”
Kiss 等 - 2015 - Elucidating Some Issues Regarding the Synthesis of DOI: 10.1063/1.4937250 -
信頼度 1.0
“In cm-1 450S and 650S, the twin peaks near 428 and 444 [74, cm-1 Si-O Si-O-Si 75] are from bending;”
Biochar from co-pyrolysis of urban organic wastes—investigation of carbon sink potential using ATR-FTIR and TGA DOI: 10.1007/s13399-020-01000-9 -
Chlorine 信頼度 1.0
“423.8 16.4 the control, only a slight increase in the degradation peak temperature 428.2 and a decrease of the enthalpy due to the lower crystallinity of the CO+pH +CL 309.3;”
Yavuz 等 - 2018 - Structural coloration of chitosan coated cellulose DOI: 10.1016/j.carbpol.2018.03.084 -
Phosphate (PO4) 信頼度 0.7
“PO ν in region 428-455”
Seredin 等 - 2020 - Development of a new approach to diagnosis of the DOI: 10.1038/s41598-020-78078-8
このバンドを持つスペクトルがありますか？
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