What absorbs at 3124 cm⁻¹ in an FTIR spectrum?
A band near 3124 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 5 cited sources
快速回答
A band near 3124 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 |
|---|---|---|---|
| N h | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Fluorine (C-F) | 1 | 1 | 1.0 |
| Water (H2O) | 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
| 材料 | 支持峰 | 重疊基團 | 引用來源 |
|---|---|---|---|
| hematite | 3124, 1030, 469 | Hydroxyl (O-H), Water (H2O) | 1 |
| goethite | 3124, 1470, 696 | Hydroxyl (O-H), N h | 1 |
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 3124 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
“560cm-1[10-11], 3According to Figure 3, there are a Sn-OH vibration peak at NO vibration peaks at 1384cm-1 1637cm-1[12] 3124cm-1, and and a -OH vibration peak of water at which demonstrates that a 3small amount of adsorbed water and NO ions”
Liu 等 - 2012 - Preparation and Properties of Gd and Sb Doped SnO2 DOI: 10.4028/www.scientific.net/AMR.528.50 -
Hydroxyl (O-H) 信心 1.0
“FTIR spectroscopy Mössbauer spectroscopy d-OH indicated that goethite of type 1 is characterized by the presence of the band between 799 Iron ores 802cm(cid:3)1, 904cm(cid:3)1 c-OH the between 898 and and the bulk hydroxyl stretch between 3”
Spectroscopic characterization of iron ores formed in different geological environments using FTIR, XPS, Mössbauer spectroscopy and thermoanalyses DOI: 10.1016/j.saa.2014.10.090 -
信心 1.0
“The FTIR spectra of 5 was charactercm(cid:1)1, N-H cm(cid:1)1, C¼O C-F niosomes(without5-FU)wasshowntoexhibitincreasedCI,showingrapid ized by stretch at 3123.5 bend at 1651.2 8 O.L.”
The effect of noisome preparation methods in encapsulating 5-fluorouracil and real time cell assay against HCT-116 colon cancer cell line DOI: 10.1016/j.heliyon.2022.e12369 -
信心 1.0
“Moreover, the FTIR analyses showed an intensity reduction in the functional groups of Thus, optical ellipsometry analysis of non-encapsulated MAPbI samples showed a 3 decrease in the absorbance of the samples from 400 nm to 700 nm, whereas”
Characterization of a New Low Temperature Encapsulation Method with Ethylene-Vinyl Acetate under UV Irradiation for Perovskite Solar Cells DOI: 10.3390/app12105228 -
N h 信心 0.9
“Free ligand stretching vibrations.”
Czylkowska 等 - 2020 - Synthesis, Spectroscopic, Thermal and Catalytic Pr DOI: 10.3390/ma13143217
有包含此波峰的圖譜嗎？
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