What absorbs at 3428 cm⁻¹ in an FTIR spectrum?
A band near 3428 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Hydroxyl (O-H) | 11 | 10 | 1.0 |
| N h | 2 | 0 | 0.9 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Hydroxyl (O-H) 置信度 1.0
“Explicit assignment in text.”
Chen 等 - 2020 - Synthesis and Antioxidant Activity of Cationic 1,2 DOI: 10.3390/polym12010112 -
置信度 0.9
“Explicit: A peak at 3428 observed in F2, due to poly-OH groups.”
Hussain 等 - 2020 - Visco-thermal and structural characterization of w DOI: 10.1007/s13197-020-04327-3 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'new large peak at 3428 close to the peak at 3570 of OH- ions'”
Kandori 等 - 2012 - FTIR studies on photocatalytic activity of Ti(IV)- DOI: 10.1016/j.molcata.2012.04.009 -
置信度 0.9
“Explicit assignment: 'band centred at 3428 cm-1 can be assigned to a Na-related OH-defect'”
Purwin 等 - 2009 - Hydrogen incorporation in Feand Na-doped diopsid DOI: 10.1127/0935-1221/2009/0021-1938 -
Hydroxyl (O-H) 置信度 0.9
“attributed to O-H stretching”
Reddy 等 - 2011 - EPR and photoluminescence studies of ZnOMn nanoph DOI: 10.1016/j.saa.2011.03.014 -
Hydroxyl (O-H) 置信度 0.9
“Broad peak at 3428 attributed to stretching vibration of -OH functional group.”
Zhao 等 - 2021 - Evaluation of a strawberry fermented beverage with DOI: 10.7717/peerj.11974 -
Hydroxyl (O-H) 置信度 0.9
“Band peak at 3428 cm-1 indicated O-H stretching vibration hydroxyl.”
Alfattani 等 - 2022 - Bio-Char Characterization Produced from Walnut She DOI: 10.3390/en15010001 -
Hydroxyl (O-H) 置信度 0.9
“Assigned to νO-H.”
Bousalah 等 - 2022 - Enhanced reactivity of the CuO-Fe2O3 intimate hete DOI: 10.21203/rs.3.rs-1276158/v1
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