What absorbs at 1683 cm⁻¹ in an FTIR spectrum?
A band near 1683 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 |
|---|---|---|---|
| Carbonyl (C=O) | 4 | 4 | 0.9 |
| Alkyl C-H | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.6 |
| Protein alpha helix | 1 | 1 | 0.3 |
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
-
hyder 1.0
“explicit assignment”
Roy 等 - 2010 - Processing of type I collagen gels using nonenzyma DOI: 10.1002/jbm.a.32231. -
Alkyl C-H hyder 0.9
“Explicit assignment in text.”
Widhyahrini 等 - 2020 - The synthesis of sulfonated polyethersulfone (SPES DOI: 10.1007/s00289-019-02932-7 -
Carbonyl (C=O) hyder 0.9
“C=O bond in carboxylic acid group”
Chen 等 - 2020 - Inhibition of Poly(ethylenediaminetetraacetic acid DOI: 10.3390/cryst10060544 -
hyder 0.9
“Band at 1683-1704 cm-1 assigned to vC=O.”
Jiang 等 - 2018 - Synthesis and structureproperties characterizatio DOI: 10.1098/rsos.180536 -
Carbonyl (C=O) hyder 0.9
“Explicit assignment in text snippet page 6.”
Lucena 等 - 2021 - Evaluation of an Ozone Chamber as a Routine Method DOI: 10.3390/ijerph182010587 -
Carbonyl (C=O) hyder 0.9
“Absorption band corresponding to unreacted carbonyl group.”
Perju 和 Marin - 2021 - Mesomorphic Behavior of Symmetric Azomethine Dimer DOI: 10.3390/molecules26082183 -
Carbonyl (C=O) hyder 0.9
“Text: 'double characteristic peaks at 1705 and 1683 for the stretching of carbonyl group'”
Zhang 等 - 2017 - Preparation and Characterization of Carbamazepine DOI: 10.3390/pharmaceutics9040054 -
hyder 0.7
“New bands attributed to b-type structures.”
Boye 等 - 2004 - Thermal stability of beta-lactoglobulins A and B DOI: 10.1017/S0022029904000184
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