What absorbs at 3298 cm⁻¹ in an FTIR spectrum?
A band near 3298 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) | 6 | 6 | 0.9 |
| N h | 2 | 2 | 0.9 |
| Amide | 2 | 2 | 0.9 |
| Protein | 1 | 1 | 0.9 |
| Secondary amine | 1 | 1 | 0.7 |
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 0.9
“Text: 'broad peak at 3298 attributed to O H'”
Shahid 等 - 2013 - Graft polymerization of guar gum with acryl amide DOI: 10.1016/j.ijbiomac.2013.08.018 -
Hydroxyl (O-H) 置信度 0.9
“Text states 'absorbance at 3298 OAH vibration' and 'stretching vibration peak'.”
Zhang 等 - 2009 - Improvement of the Properties of Ground Tire Rubbe DOI: 10.1002/app.30626 -
Amide 置信度 0.9
“Explicit assignment: '3298 v(N-H)stretching of amide A 3600-3000 Proteins'”
Barone 等 - 2020 - Autotrophic and Heterotrophic Growth Conditions Mo DOI: 10.3390/md18030169 -
N h 置信度 0.9
“Text: 'N-H stretching cm-1 appeared at 3298'”
Bashir 等 - 2014 - In vitro Evaluation of Nateglinide-Loaded Microsph DOI: 10.4314/tjpr.v13i7.6 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment in text.”
Gutierrez 等 - 2016 - Influence of beet flour on the relationship surfac DOI: 10.1016/j.foodhyd.2015.10.012 -
Hydroxyl (O-H) 置信度 0.9
“Broad vibrational band at 3298 cm-1 assigned to -OH functional group.”
Ong 和 Nomanbhay - 2022 - Optimization Study on Microwave-Assisted Hydrother DOI: 10.3390/en15113974 -
Hydroxyl (O-H) 置信度 0.9
“Hydroxyl stretching bands at 3397 and 3298 cm-1.”
Paz 等 - 2023 - Spectroscopic study of mixtures of green copper pi DOI: 10.1016/j.culher.2022.12.004 -
Amide 置信度 0.9
“attributable to amide A”
Pozzi 等 - 2021 - Aiding the cleaning of four 19th-century Tsimshian DOI: 10.1186/s40494-021-00513-4
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