What absorbs at 1280 cm⁻¹ in an FTIR spectrum?
A band near 1280 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 8 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 |
|---|---|---|---|
| C-O single bond | 5 | 5 | 0.9 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Nucleic acid | 1 | 1 | 0.9 |
| C c single bond | 1 | 1 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.8 |
| Protein | 1 | 1 | 0.7 |
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
-
Alkyl C-H 置信度 1.0
“Peak near 1280 corresponding to twisting asymmetric CH mode disappears on complexation of a polymer blend with salt.”
Arya 等 - 2018 - Effect of variation of different nanofillers on st DOI: 10.1007/s11581-016-1784) -
Alkyl C-H 置信度 1.0
“cm-1 The main band present at 1280, 1350, 1434and 1467 are attributed to twisting (CH 2) s, symmetric CH”
Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr DOI: 10.1007/s11581-017-2364-7). -
置信度 1.0
“Characteristic vibration band associated with carbon-carbon double bond.”
Salinas 和 Frontana-Uribe - 2023 - Electrochemical and Spectroscopic (FTIR) Evidence DOI: 10.3390/molecules28020569 -
Hydroxyl (O-H) 置信度 0.9
“Bending vibration of O-H.”
Esmaeili 等 - 2020 - Graphene oxide and its derivatives as promising In DOI: 10.1038/s41598-020-75090-w -
C-O single bond 置信度 0.9
“Text: '1280cm-1 (-C-O- stretch)'”
Grosshardt 等 - 2019 - Applying microscopic analytic techniques for failu DOI: 10.1186/s42649-019-0009-1 -
C-O single bond 置信度 0.9
“absorbance peaks around 1280 corresponding to C-O and C-C stretching”
He 等 - 2019 - Gaseous Decomposition Products from Wood Degradati DOI: 10.1016/j.compositesb.2014.08.040 -
C-O single bond 置信度 0.9
“Text: 'C-O stretching band at around 1280'”
Martin-Ramos 等 - 2017 - On the probable composition of 'Jamaican stone' ap DOI: 10.1016/j.phytol.2016.11.005 -
Nucleic acid 置信度 0.9
“Text: 'DNA (1180-1280cm-1)'”
Srisongkram 等 - 2020 - Evaluation of Melanoma (SK-MEL-2) Cell Growth betw DOI: 10.3390/ijms21114141
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