What absorbs at 1549 cm⁻¹ in an FTIR spectrum?
A band near 1549 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
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Amide | 5 | 4 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 0,9 |
| C n single bond | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 0,9 |
Le classement reflète les preuves bibliographiques accumulées, et non une règle faisant autorité. Confirmez toujours dans le contexte de votre échantillon.
Bibliographie derrière ces attributions
-
Alkene (C=C) confiance 1,0
“Explicit assignment: '1549' as part of C=C”
Shi 等 - 2006 - The investigation of argon plasma surface modifica DOI: 10.1016/j.eurpolymj.2006.01.007 -
Amide confiance 1,0
“Explicit assignment in text: 'and 1549.11 cm-1 (N-H bending band and C-N stretching band)'”
Liu 等 - 2018 - Synthesis and characterization of comb-shaped copo DOI: 10.1039/c7ra13255g -
confiance 0,9
“Explicit assignment: '1549cm-1 π-π OH, C=O'”
Alorabi - 2021 - Effective Removal of Malachite Green from Aqueous DOI: 10.1155/2021/2359110 -
Amide confiance 0,9
“Absorption band visible at 1549.4 for all plasticizers.”
Azmi 等 - 2020 - Functional Properties of Tilapia's Fish Scale Gela DOI: 10.17576/jsm-2020-4909-19 -
Amide confiance 0,9
“Text: 'Amide II band at 1549 cm-1'.”
Bujok 等 - 2019 - Applicability of FTIR-ATR Method to Measure Carbon DOI: 10.1155/2019/2181370 -
confiance 0,9
“Explicit assignment: asymmetric stretching.”
Nabipour 和 Sadr - 2015 - Layered zinc hydroxide-ibuprofen nanohybrids synt DOI: 10.1080/17458080.2014.998301 -
Alkyl C-H confiance 0,9
“Explicit assignment: ωC-H chitosan matrix”
Oviedo Mendoza 等 - 2015 - Correlation between Electrical Properties and Pote DOI: 10.1155/2015/710425 -
Amide confiance 0,9
“Assigned to amide II band.”
Tamburro 等 - 2005 - Supramolecular amyloid-like assembly of the polype DOI: 10.1074/jbc.M411617200
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