What absorbs at 1220 cm⁻¹ in an FTIR spectrum?
A band near 1220 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| C-O single bond | 3 | 3 | 1.0 |
| Lignin | 2 | 2 | 0.95 |
| C-S single bond | 1 | 1 | 0.95 |
| Fluorine (C-F) | 1 | 1 | 0.9 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Sulfate (SO4) | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Carbonyl (C=O) | 1 | 1 | 0.8 |
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
“Explicit assignment.”
Nadal 等 - 2018 - A Simple and High-yield Synthesis of Hexadecyl Fer DOI: 10.1590/1678-4324-2018170809 -
C-S single bond hyder 0.95
“Explicit assignment in text”
Retnoningtyas 等 - 2022 - Synthesis and Characterization of Methionine-Funct DOI: 10.33263/BRIAC125.58455859 -
Lignin hyder 0.95
“Same sentence as 1600”
Solihat 等 - 2020 - Microwave assisted dilute organic acid pre-treatme DOI: 10.1088/1757-899X/935/1/012046 -
Amide hyder 0.9
“Amide-III band at 1220 cm-1”
Keceli 等 - 2020 - Dual delivery of platelet-derived growth factor an DOI: 10.1111/jre.12756 -
Sulfate (SO4) hyder 0.9
“Corresponds to ester sulfate groups.”
Moustafa 等 - 2021 - Preparation and Characterization of Super-Absorbin DOI: 10.3390/polym13244308 -
hyder 0.9
“correspond to sulfonic groups”
Abu-Saied 等 - 2021 - Highly Conductive Polyelectrolyte Membranes Poly(v DOI: 10.3390/polym13162638 -
C-O single bond hyder 0.9
“Explicit assignment: 'absorption bands of the C-O at 1220 cm-1'.”
Boudebouz 等 - 2016 - Synthesis and Study of Glycoluril Derivatives DOI: 10.1063/1.4964534 -
hyder 0.9
“Same as above.”
Dal Pozzo 等 - 2019 - Free fatty acids esterification catalyzed by acid DOI: 10.1039/c8ra10248a
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