What absorbs at 1674 cm⁻¹ in an FTIR spectrum?
A band near 1674 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 |
|---|---|---|---|
| Carbonyl (C=O) | 3 | 3 | 0,9 |
| C-O single bond | 1 | 1 | 0,9 |
| Ester | 1 | 1 | 0,9 |
| Aldehyde (CHO) | 1 | 1 | 0,9 |
| Ketone | 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
-
Carbonyl (C=O) confiance 0,9
“Explicit assignment in text”
Nagpal 等 - 2012 - Dissolution enhancement of glimepiride using modif DOI: 10.4103/2230-973X.96925 -
Carbonyl (C=O) confiance 0,9
“Strong absorbance at 1674 cm-1 attributed to C=O stretching of ketones, aldehydes, esters, and/or acids.”
Ong 和 Nomanbhay - 2022 - Optimization Study on Microwave-Assisted Hydrother DOI: 10.3390/en15113974 -
C-O single bond confiance 0,9
“Explicit assignment in text”
Pinzon-Moreno 等 - 2022 - Degradation of Hydrogels Based on Potassium and So DOI: 10.3390/polym14132656 -
Carbonyl (C=O) confiance 0,9
“Shifted peak after bromination”
Setyawati 等 - 2017 - Synthesis and Characterization of Novel Benzohydra DOI: 10.1063/1.4978194 -
confiance 0,8
“Text: '1674 to intramolecular'”
Sanchez Ramirez 等 - 2021 - Wool Keratin-Based Nanofibres-In Vitro Validation DOI: 10.3390/bioengineering8120224 -
confiance 0,8
“Text: 'β-sheets intramolecular 1674'”
Sanchez Ramirez 等 - 2021 - Design of Asymmetric Nanofibers-Membranes Based on DOI: 10.3390/jfb12040076 -
confiance 0,5
“Mentioned as measured bands, but group not specified.”
Wille 等 - 2003 - Redox-triggered FTIR difference spectra of FAD in DOI: 10.1021/bi035219f -
confiance 0,5
“Mentioned in context of stretching vibration.”
Makar 等 - 2020 - A New Crystal Engineering Technique for Dissolutio DOI: 10.22037/ijpr.2020.1101094
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