What absorbs at 3285 cm⁻¹ in an FTIR spectrum?
A band near 3285 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) | 4 | 4 | 0.9 |
| Amine primary | 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
-
置信度 1.0
“Explicit assignment: '1st peak (3285.35 cm-1) belongs to (CH=CH2) group of allyl'.”
Tasci 等 - 2016 - Determination of alliin and allicin in the plant o DOI: 10.17660/ActaHortic.2016.1143.19 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment in text.”
Tee 等 - 2017 - Chemical, Physical, and Barrier Properties of Edib DOI: 10.1016/j.jfoodeng.2011.11.010 -
Amine primary 置信度 0.9
“Same as above.”
Zahedi 和 Fallah-Darrehchi - 2015 - Electrospun Egg Albumin-PVA Nanofibers Containing DOI: 10.1007/s12221-015-5457-9 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'characteristic peaks at 3285.14... corresponding to functional groups O-H bond'.”
Aldawsari 等 - 2021 - Development and Characterization of Calcium-Algina DOI: 10.3390/md19080467 -
置信度 0.9
“NH stretching vibration of sulphonamide in physical mixtures.”
Kovacs 等 - 2020 - Influence of Aqueous Solubility-Enhancing Excipien DOI: 10.3390/pharmaceutics12040385 -
Hydroxyl (O-H) 置信度 0.9
“O-H stretching vibration”
Liu 等 - 2018 - Highly Efficient Flame Retardant Hybrid Composites DOI: 10.3390/polym10060625 -
Hydroxyl (O-H) 置信度 0.9
“characteristic of free OH groups”
Montalvo-Paquini 等 - 2018 - Preparation and Characterization of Proteinaceous DOI: 10.1155/2018/9782591
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