What absorbs at 3228 cm⁻¹ in an FTIR spectrum?
A band near 3228 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) | 4 | 4 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| 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
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Hydroxyl (O-H) 置信度 1.0
“Absorption peak at 3228.19 cm-1 was attributed to O-H stretch in polymeric structure of starch resulting from intramolecular cm-1 cm-1 and intermolecular hydrogen bonding.”
Singh 和 Sharanagat - 2020 - Physico-functional and structural characterization DOI: 10.1016/j.ijbiomac.2020.07.185 -
Hydroxyl (O-H) 置信度 1.0
“The broad peaks around 3228 and were q q attributed to hydroxyl (-OH) groups [9] on FNS composite.”
Thabede 等 - 2021 - Magnetite Functionalized Nigella Sativa Seeds for DOI: 10.1155/2021/6655227 -
Hydroxyl (O-H) 置信度 1.0
“into the SA matrix, some characteristic band changes were observed: (1) the decrease in peak intensity cm-1 at 3228 was assigned to the reduction of -OH groups, (2) the significant decrease of peak intensity cm-1, at 2915, 2847 (correspondi”
Novel Mixed Matrix Sodium Alginate–Fullerenol Membranes: Development, Characterization, and Study in Pervaporation Dehydration of Isopropanol DOI: 10.3390/polym12040864 -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Hemimorphite Flotation with 1-Hydroxydodecylidene-1,1-diphosphonic Acid and Its Mechanism DOI: 10.3390/min8020038 -
N h 置信度 0.9
“N-H vibration”
Comparison of Different Methods for Spongin-like Collagen Extraction from Marine Sponges (Chondrilla caribensis and Aplysina fulva): Physicochemical Properties and In Vitro Biological Analysis DOI: 10.3390/membranes11070522
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