What absorbs at 2965 cm⁻¹ in an FTIR spectrum?
A band near 2965 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 6 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 | 4 | 4 | 0.95 |
| Carboxyl (COOH) | 1 | 1 | 0.95 |
| Methyl | 1 | 1 | 0.95 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| N h | 1 | 1 | 0.7 |
| C-O single bond | 1 | 0 | 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
-
Methyl 置信度 0.95
“Explicit assignment: -CH3 Group Asymmetrical Stretching (Methyl) ~2965, -CH Group Asymmetrical Stretching (Methyl) ~2965”
Faiza 等 - 2022 - Degradation Performance Investigation of Hydrother DOI: 10.3390/polym14061094 -
Carboxyl (COOH) 置信度 0.95
“Explicit assignment in text: '2965.11cm-1 ±3000cm-1 -COOH(O-HStretching)'”
Nerdy 等 - 2021 - Validation of the Developed Zero-Order Infrared Sp DOI: 10.3390/molecules26226985 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: '2965cm-1 due to -OH groups in the end groups of PET'”
Abdolahifard 等 - 2011 - Surface Modification of PET Fabric by Graft Copoly DOI: 10.5402/2011/265415 -
Alkyl C-H 置信度 0.9
“Signal originating from C-H stretching.”
Koczorowski 等 - 2022 - Photocatalytic Activity of Sulfanyl PorphyrazineT DOI: 10.3390/ma15207264 -
Alkyl C-H 置信度 0.9
“Text: 'consecutive absorption bands appeared at 2965 ... attributed to -C-CH'”
Zaib 和 Athar - 2019 - DOI: 10.4152/pea.201905285 -
N h 置信度 0.7
“Composite vibrations of stretch-”
Babar 和 Sarkar - 2017 - Self-assembled nanotubes from single fluorescent a DOI: 10.1007/s13204-017-0551-5
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