What absorbs at 3347 cm⁻¹ in an FTIR spectrum?
A band near 3347 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
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) | 3 | 3 | 0.9 |
| Alkyl C-H | 1 | 1 | 0.9 |
| N h | 1 | 1 | 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 0.9
“Text: 'strong O-H stretching absorption at 3347'”
Giridhar 等 - 2017 - DIMENSIONAL STABILIZATION OF WOOD BY CHEMICAL MODI DOI: 10.4067/S0718-221X2017005000002 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: '3347 cm-1 for isolated lignin' and 'O-H stretch' band region 3550-3200 cm-1.”
Handika 等 - 2021 - Enhancing Thermal and Mechanical Properties of Ram DOI: 10.3390/ma14226850 -
Hydroxyl (O-H) 置信度 0.9
“Snippet: 'carbonyl, -CH2, and -OH in LNG were found at ... 3347'”
Manoukian 等 - 2018 - Biodegradable polymeric injectable implants for lo DOI: 10.1002/app.46068. -
N h 置信度 0.9
“Explicit assignment in text: 'broad peak at 3347 is due to NH stretching band'”
Meng 等 - 2018 - Synthesis of Cationic Polyacrylamide Base on Low T DOI: 10.1063/1.5048740 -
Alkyl C-H 置信度 0.9
“Explicit assignment: 'the C-H stretching at stretching was located at 3347'”
Sun 等 - 2014 - Preparation and Characterization of Poly(lactic ac DOI: 10.7317/pk.2014.38.4.464
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