What absorbs at 515 cm⁻¹ in an FTIR spectrum?
A band near 515 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 515 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 | 5 | 5 | 1.0 |
| S s | 2 | 2 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Carbon bromine | 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 |
|---|---|---|---|
| ZnO | 515, 1400, 3430 | Metal oxygen | 1 |
| CuO | 515, 453, 1000 | 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 515 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
-
Acetate 信頼度 1.0
“The additional peaks at 1,640 3), cm-1 cm-1(C═O cm-1 (-C-H-CH 2,850 2), 1,746 ester), and observed in spread samples, and at about 1,515 cm-1 (C-O-CH (C-H 1,160 2) and few bands related to observed in butter samples, were ignored as they we”
Contreras 等 - 2010 - Evaluation of Nano Zinc (ZnO) for Surface Enhancem DOI: 10.1007/s11947-009-0237-4 -
Metal oxygen 信頼度 1.0
“The oxygen func147cm-1 (Eg) due to symmetric stretching vibration mode and other tionality groups attached at the surface of graphitic sheets reduced by 399cm-1 515cm-1 637cm-1 weaker bands at (B1g), (A1g), (Eg) corhydrothermal synthesis of”
Effect of co-sensitization in solar exfoliated TiO2 functionalized rGO photoanode for dye-sensitized solar cell applications DOI: 10.1016/j.mssp.2019.02.027 -
Silicon (Si) 信頼度 1.0
“An increase of T from 400 °C to 800 °C is seen to lead to anatase phase in the Ti 0.5Si 0.5O films fired at 600 is f 2 Si-O-Si a significant increase of the peak to the detriment of confirmed by the appearance of the peaks at 144, 395, 515”
Sarkar 等 - 2007 - Dielectric properties of sol-gel derived high-k ti DOI: 10.1016/j.tsf.2006.11.155 -
S s 信頼度 1.0
“The intensity of the relative intensity of the band at 540 The redistribution of the relative intensities of spectral compocm-1 intheRamanspectrumoftheDTT-CTsample bandat515 cm-1 nentsinthefrequencyintervalof300to370 isobservedin increases”
Brandt 等 - 2015 - Effect of thermal denaturation, inhibition, and cl DOI: 10.1117/1.JBO.20.5.051015 -
S s 信頼度 1.0
“The band cm-1 at 515 arising from the S-S stretching vibrational mode of a disulfide bond lower its intensity.”
Antibody CD133 Biofunctionalization of Ammonium Acryloyldimethyltaurate and Vinylpyrrolidone Co-Polymer-Based Coating of the Vascular Implants DOI: 10.3390/ma13245634 -
信頼度 1.0
“The absorption band maximum at 515 cm-1 most likely corresponds to the Ti-O-Ti bond [40,41].”
Synthesis and Investigation of Zeolite TiO2/Al-ZSM-12 Structure and Properties DOI: 10.3390/catal13020216 -
Phosphate (PO4) 信頼度 1.0
“11(b) shows that after SP treatment, the peaks located at 546, 529, and 515 cm-1 attributed to the asymmetric and symmetric stretching vibrations of P-O-C appeared.”
Zou 等 - 2022 - Dispersion of sodium phytate on muscovite and the DOI: 10.37190/ppmp/154951 -
Metal oxygen 信頼度 0.9
“Indication for CuO.”
Effect of CuO and Graphene on PTFE Microfibers: Experimental and Modeling Approaches DOI: 10.3390/polym14061069
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