What absorbs at 3021 cm⁻¹ in an FTIR spectrum?
A band near 3021 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 |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
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
-
Aromatic ring 置信度 1.0
“Furthermore, the aromatic C-H absorption of absorption of hydrogen atoms caused a relatively weak band at approximately 3021 cm-1.”
A Novel Fishbone-Like Lead(II) Supramolecular Polymer: Synthesis, Characterization, and Application for Producing Nano Metal Oxide DOI: 10.3390/cryst11040335 -
Alkyl C-H 置信度 1.0
“LLM confirmed rule peak-group candidate”
Kumar 和 Madhav - 2021 - Exploration of Inbuilt Novel Properties as Bioreta DOI: 10.22037/ijpr.2021.113734.14457 -
Alkyl C-H 置信度 1.0
“9896 cm-1 cm-1 show a 3 red shift of the absorption bands at 3021 which represents the asymmetrical stretching vibration of C-H bond.”
Sensitivity of Pressure Sensors Enhanced by Doping Silver Nanowires DOI: 10.3390/s140609889 -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Aloe vera-Based Polymeric Network: A Promising Approach for Sustained Drug Delivery, Development, Characterization, and In Vitro Evaluation DOI: 10.3390/gels9060474 -
置信度 0.8
“ν(CH) stretching vibrations in 3100-3000 region”
Mino 等 - 2016 - A surface science approach to TiO2 P25 photocataly DOI: 10.1016/j.apcatb.2016.05.029
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