What absorbs at 3497 cm⁻¹ in an FTIR spectrum?
A band near 3497 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 4 cited sources
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 3 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| C-S single bond | 1 | 1 | 1.0 |
| C c single bond | 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 |
| Water (H2O) | 1 | 1 | 0.9 |
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。
這些指派背後的文獻
-
Acetate 信心 1.0
“N-H C-H, groups, whereas Figure 5c demonstrates characteristic malachite surface NH 2, cm-1, C-O-C C-S C=O, and peaks at approximately 3497, 2996, 2922, 1705 and 1168 respectively, suggesting that (NH 4) 2S was adsorbed on the malachite sur”
Ibrahim 等 - 2022 - Effect of Ammonium Sulfide on Sulfidization Flotat DOI: 10.3390/min12101193 -
Hydroxyl (O-H) 信心 1.0
“LLM confirmed rule peak-group candidate”
Maeda 等 - 1999 - Chromophore-protein-water interactions in the L in DOI: 10.1021/bi9907072 -
Hydroxyl (O-H) 信心 1.0
“1500 1000 4000 3500 3000 2500 2000 As can be observed in Figure 2 the spectrum shows (cm-1) (b) Wavenumber cm-1 absorption at 3497 corresponding to -OH groups is in agreement with the results of GC-MS, where the β-cyclodextrin (β-CD) Figure”
Pinto Cotrim 等 - 2016 - Preparation of beta-CyclodextrinLatex Dispersion DOI: 10.7569/JRM.2015.634122 -
Chitosan 信心 1.0
“As shown in Figure 4c, the characteristic chitosan bands were at 3497”
Optimization of Ultrasound-Assisted Extraction and Encapsulation of Antioxidants from Orange Peels in Alginate-Chitosan Microparticles DOI: 10.3390/antiox11020297
有包含此波峰的圖譜嗎？
上傳您的FTIR圖譜，幾秒內即可獲得完整的解讀報告——包含帶有文獻引用的峰位指派、圖譜庫比對以及信心等級評估的證據鏈。
解讀我的圖譜