What absorbs at 574 cm⁻¹ in an FTIR spectrum?
A band near 574 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 7 cited sources
快速回答
A band near 574 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 |
|---|---|---|---|
| Phosphate (PO4) | 3 | 2 | 1.0 |
| Metal oxygen | 2 | 2 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 0 | 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。
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 574 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
-
信心 1.0
“The band at 574 corresponds to Element Weight (%) Atomic (%) Cu-O stretching vibration.”
Green synthesis of bimetallic Pt@Cu nanostructures for catalytic oxidative desulfurization of model oil DOI: 10.1007/s40097-017-0223-8 -
信心 1.0
“The absorption bands observed at 752.97 and 574.11 cm-1 were assigned to C-Cl and C-Br stretching of alkyl halides, respectively.”
Facile Green Synthesis of Zinc Oxide Nanoparticles with Potential Synergistic Activity with Common Antifungal Agents against Multidrug-Resistant Candidal Strains DOI: 10.3390/cryst12060774 -
信心 1.0
“Then, a band at 574 associated with 4 4the Zn-O symmetric stretching vibration in the ZnO was also spotted.”
A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor DOI: 10.3390/app10144938 -
Silicon (Si) 信心 1.0
“cm-1 and 574 were the symmetrical stretching vibration of PO A comparison of the was due to the asymmetrical stretching vibration of Si-O-Si;”
Novel Hydroxyl-Containing Quaternary Ammonium Salt N-(2-Hydroxyethyl)-N, N-Dimethyl-3-[(1-Oxododecyl)amino]- 1-Propanaminium: Its Synthesis and Flotation Performance to Quartz DOI: 10.3390/min13050702 -
Phosphate (PO4) 信心 1.0
“The peaks at 1044.38 cm-1 and 602.37 cm-1 were attributed to the asymmetric stretching vibration of P-O-P bond in PO 43-, the peak at 574.37 cm-1 indicated the in-plane bending vibration of P-O-P in PO (Lu et al., 1998;”
Wei 等 - 2020 - Investigating flotation behavior and mechanism of DOI: 10.37190/ppmp/119662 -
信心 1.0
“Specifically, a new peak attributed to Cr at 574.5 eV was observed in LR-EPI-8-Cr, indicatSpecifically, a new peak attributed to Crat 574.5 eV was observed in LR-EPI-8-Cr, indicatSpecifically, a new peak attributed to Cr at 574.5 eV was obs”
Efficient Removal of Heavy Metals from Aqueous Solution Using Licorice Residue-Based Hydrogel Adsorbent DOI: 10.3390/gels9070559 -
Phosphate (PO4) 信心 0.9
“Explicit assignment: 'PO group at 574'”
Natasha 等 - 2008 - Fourier transform infrared study on sol-gel derive DOI: 10.4028/www.scientific.net/AMR.47-50.1185
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