What absorbs at 3352 cm⁻¹ in an FTIR spectrum?
A band near 3352 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 7 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 | 0.95 |
| N h | 2 | 2 | 0.9 |
| Hydrogen bond | 1 | 1 | 0.8 |
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 0.95
“Text: 'wide peak around 3352 is assigned to the O-H stretching'”
Abol-Fotouh 等 - 2020 - Bacterial nanocellulose from agro-industrial waste DOI: 10.1038/s41598-020-60315-9 -
Hydroxyl (O-H) 置信度 0.9
“Snippet: 'bands at 3352, 2878 attributed to the -OH and -CH groups.'”
Fernandes 等 - 2011 - Cytocompatibility of Chitosan and Collagen-Chitosa DOI: 10.1590/S0104-14282011005000008 -
N h 置信度 0.9
“Peak coming from amine group N-H stretching vibrations.”
Maciejewska 和 Rogulska - 2019 - Insight into functionalized DMN-co-GMA copolymers DOI: 10.1007/s10973-019-08327-0 -
N h 置信度 0.9
“Band at ~3352 cm-1 corresponding to disordered N-H.”
Qiao 等 - 2022 - Effects of Fiber Volume Fraction and Length on the DOI: 10.3390/polym14153080 -
Hydrogen bond 置信度 0.8
“Listed among hydrogen bonding peaks.”
Xiao 等 - 2020 - Preparation and characterization of broken-rice st DOI: 10.1016/j.ijbiomac.2020.05.182 -
置信度 0.8
“Main peak associated with moisture sorption.”
Yuan 等 - 2020 - Micro-FTIR spectroscopy and partial least-squares DOI: 10.1186/s10086-020-1848-7 -
Hydroxyl (O-H) 置信度 0.5
“Originates from -OH (implied by context)”
Oliwa 等 - 2021 - Effects of Various Types of Expandable Graphite an DOI: 10.3390/ma14071801
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