FTIR峰解读
What absorbs at 1218 cm⁻¹ in an FTIR spectrum?
A band near 1218 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 | 3 | 3 | 0.95 |
| S eq o | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 1 | 0.9 |
| Oxygen heterocycle | 1 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.6 |
| Protein | 1 | 1 | 0.6 |
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: asymmetric”
Mandour 等 - 2023 - The effect of preparation conditions of chalcone b DOI: 10.1007/s10965-023-03515-x -
C-O single bond 置信度 0.95
“Explicit assignment in text.”
Lando 等 - 2017 - UV-Surface Treatment of Fungal Resistant Polyether DOI: 10.3390/ijms18071536 -
Oxygen heterocycle 置信度 0.9
“Explicit assignment in text.”
Edwards 等 - 2018 - Analysis of chemical polymerization between functi DOI: 10.1590/0104-1428.07016 -
C-O single bond 置信度 0.9
“asymmetric stretching of ether C-O”
Ferreira dos Santos 等 - 2017 - Surface modification of poly (ether-ether-ketone) DOI: 10.1590/S1517-707620170004.0217 -
置信度 0.9
“Epoxy (C-O) group stretching at 1218 cm-1.”
Khobragade 等 - 2017 - Physico-mechanical properties of nano-polystyrene- DOI: 10.1002/pi.5392 -
Alkyl C-H 置信度 0.9
“Text: '1218 (asymmet- ric C-H stretching of CH2)'”
Rogulska 和 Kultys - 2016 - Aliphatic polycarbonate-based thermoplastic polyur DOI: 10.1007/s10973-016-5420-z -
S eq o 置信度 0.9
“Explicit assignment: '1218 for ... S=O'”
Vijitha 等 - 2021 - Fabrication of Eco-Friendly Polyelectrolyte Membra DOI: 10.3390/polym13193293 -
C-O single bond 置信度 0.8
“Range 1218-1198 assigned to ν(C-O).”
Graur 等 - 2023 - Novel Antioxidants Based on Selected 3d Metal Coor DOI: 10.17344/acsi.2022.7885
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