What absorbs at 1678 cm⁻¹ in an FTIR spectrum?
A band near 1678 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 | 2 | 1.0 |
| Alkyl C-H | 2 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
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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Ring structure hyder 1.0
“The peak cm-1 at 1678 and the A-ring bands are coupled with all other vibrations.”
Chenchiliyan 等 - 2023 - Ground-state heterogeneity and vibrational energy DOI: 10.1063/5.0135268 -
Carbonyl (C=O) hyder 1.0
“A t-test was used to compare (1678a)21 PVP-VA 64 carbonyl stretching (amide) 1672 significance difference the of the between two sets of data.”
Worku 等 - 2014 - Drug-olymer Miscibility across a Spray Dryer A Ca DOI: 10.1021/mp4003943 -
Alkyl C-H hyder 1.0
“The MOF was a porous organic material vibration peak at ~1678 and C-H stretching vibration cm-1 cm-1.”
Gan 等 - 2023 - Drug delivery system for the extended-release of l DOI: 10.3389/fbioe.2023.1197484
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