What absorbs at 1774 cm⁻¹ in an FTIR spectrum?
A band near 1774 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 3 cited sources
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Carbonyl (C=O) | 2 | 1 | 0.9 |
| Ester | 2 | 1 | 0.9 |
| Amide | 1 | 1 | 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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Ester hyder 0.9
“Explicit assignment: '1774 ... showing phthalate ester peak'”
Nugraeni 等 - 2018 - Preparation of Proton Exchange Membrane based on C DOI: 10.1063/1.5082482 -
Amide hyder 0.9
“Explicitly stated: protein amide I region, 1774-1576 cm-1.”
Xin 等 - 2013 - Using Synchrotron Radiation-Based Infrared Microsp DOI: 10.3390/ijms140816706 -
Carbonyl (C=O) hyder 0.9
“stretching vibration of C=O”
Luan 等 - 2018 - Antioxidant Activity and Antifungal Activity of Ch DOI: 10.3390/polym10040395
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