What absorbs at 1249 cm⁻¹ in an FTIR spectrum?
A band near 1249 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| C-O single bond | 1 | 1 | 1.0 |
| Phenolic | 1 | 1 | 0.9 |
| Acetyl | 1 | 1 | 0.9 |
| C-S single bond | 1 | 1 | 0.9 |
| Sulfonyl | 1 | 1 | 0.9 |
| C n single bond | 1 | 0 | 0.9 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
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C-O single bond hyder 1.0
“1249 cm-1 represents C-O mode”
Yusoff 等 - 2018 - Theoretical and Experimental Approach Towards P-Cy DOI: 10.1088/1757-899X/374/1/012086 -
Sulfonyl hyder 0.9
“Text: 'high-intensity band of asymmetric υ stretching vibrations (O=S=O) at 1249'”
Kazachenko 等 - 2022 - Catalytic Sulfation of Betulin with Sulfamic Acid DOI: 10.3390/ijms23031602 -
C-S single bond hyder 0.9
“Text: 'two peaks appeared at 630 and 1249 ... C-S bonds'”
Shahzamani 等 - 2016 - Surface functionalization of rubber latex nanopart DOI: 10.1002/app.43268 -
Acetyl hyder 0.9
“Peak assigned to acetylation.”
Song 等 - 2020 - Acetylated Polysaccharides From Pleurotus geestera DOI: 10.3390/ijms21082810 -
Phenolic hyder 0.9
“Explicit assignment”
Kuila 等 - 2011 - Accessibility of Enzymatically Delignified Bambusa DOI: 10.4061/2011/805795
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm