What absorbs at 554 cm⁻¹ in an FTIR spectrum?
A band near 554 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
快速回答
A band near 554 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.
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
可能的材料
僅當同一文獻庫支援此波段以及至少一個額外特徵峰時，才會顯示材料。
光譜邏輯
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 554 cm⁻¹ is usually not enough for material identification by itself.
實際使用
此類查詢常見於聚合物鑑別、未知塑膠篩選、品管故障排除、再生材料驗證，以及基於文獻的峰值歸屬審查。
常見錯誤
- 將一個孤立的譜帶視為材料的證據，而未檢查至少一兩個支持峰。
- 忽略重疊：多個官能團可能在相同波數附近貢獻。
- 當添加劑、混合物、氧化或污染物可能扭曲譜圖時，跳過驗證。
驗證建議
當仍然存在歧義時，使用DSC、GC-MS或TGA驗證假設，特別是對於混合物、降解樣品和填充聚合物。
這些指派背後的文獻
-
Hydroxyl (O-H) 信心 1.0
“Shoulder ≈ 3340 (oxidization) Absent ≈3400 (OH-stretching) spectra/cm-1 554, 641, 1475, 3020 745, 718, 697 Raman”
Differentiation between copal and amber by their structure and thermal behaviour DOI: 10.1007/s10973-023-12333-8 -
Metal oxygen 信心 1.0
“cm1 and 554.12 show the stretching vibration of SiNanomater:1-15 O-Si which corresponds to the metal oxide bond.”
Haque 等 - 2018 - Effect of Different Acids and Solvents on Optical DOI: 10.1007/s12633-016-9464-2 -
信心 1.0
“4 cm-1 cm-1 are new bands 554 and 421 which are corresponded to Zn-O bonds intrinsic stretching vibration of tetrahedral sites and Fe-O bonds in octahedral sites, respectively [30].”
Ramadan 和 Ismail - 2022 - Tunning the Physical Properties of PVDFPVCZinc F DOI: 10.21203/rs.3.rs-935328/v1 -
信心 1.0
“552 The characteristic signals of the CH stretching were detected at around 2875 The peaks cm-1 553 at around 1630, 1550, and 1450 were attributed to C=O stretching (amide I), N-H bending 554 (amide II) and C-CH distorting vibration, respec”
Effect of glucose-induced Maillard reaction on physical, structural and antioxidant properties of chitosan derivatives-based films DOI: 10.1016/j.carbpol.2020.117341 -
信心 1.0
“two bands observed at 1089 and 789 are assigned to the bending vibrations of Si-O-Si The cm-1 cm-1 two absorption bands at 554 and 461 are related to the F-O bond's bending mode existing in the two 442.”
Superhydrophobic magnetic sorbent via surface modification of banded iron formation for oily water treatment DOI: 10.1038/s41598-022-15187-6 -
Carbohydrate 信心 1.0
“Both the glucose absorption sorbance in the CrCl3/[BMIM]Cl/glucose peak at 554 cm-1 system with time, and the Pt-Cl stretch vibration band at near and with concomitant change in V-O bond FIR absorbance.”
Li 和 Zhang - 2016 - Far reaching potentials of far infrared spectrosco DOI: 10.1016/S1872-2067(15)61087-7 -
Metal oxygen 信心 0.9
“Explicit assignment in text: 'high-frequency peak observed at 554 cm-1 belonging to Fe-O bending'”
Influence of Ho3+ substitution on structural and magnetic properties of Mg–Mn ferrites DOI: 10.1007/s10854-021-05547-9 -
信心 0.9
“Symmetrical pulse vibration at 554 cm-1.”
Selectively Producing Acetic Acid via Boric Acid-Catalyzed Fast Pyrolysis of Woody Biomass DOI: 10.3390/catal11040494
有包含此波峰的圖譜嗎？
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