What absorbs at 1705 cm⁻¹ in an FTIR spectrum?
A band near 1705 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) | 13 | 12 | 1,0 |
| Carboxyl (COOH) | 6 | 5 | 0,9 |
| Ester | 1 | 1 | 0,9 |
| Amide | 1 | 1 | 0,9 |
| Aldehyde (CHO) | 1 | 1 | 0,9 |
| Ketone | 1 | 1 | 0,8 |
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 1,0
“Carbonyl stretching vibrations.”
Chi 等 - 2016 - A TG-FTIR INVESTIGATION AND KINETIC ANALYSIS OF OI DOI: 10.3176/oil.2016.3.03 -
Carbonyl (C=O) confiance 1,0
“Explicit assignment in text”
Gregorio 等 - 2017 - Analysis of human bodily fluids on superabsorbent DOI: 10.1016/j.talanta.2016.10.061 -
Carbonyl (C=O) confiance 1,0
“Explicit assignment: C=O stretching”
Mani 等 - 2011 - Paclitaxel delivery from cobalt-chromium alloy sur DOI: 10.1116/1.3575530 -
Carboxyl (COOH) confiance 0,9
“Specific absorption band for acid groups at 1705 cm-1.”
Pinter 等 - 2004 - Thermo-oxidative degradation during creep crack gr DOI: 10.1002/masy.200451327 -
Carbonyl (C=O) confiance 0,9
“Explicitly associated with carbonyl.”
Singh 等 - 2013 - Chemical characterisation and durability assessmen DOI: 10.1016/j.ibiod.2013.07.014 -
Aldehyde (CHO) confiance 0,9
“Stretching vibrations of C=O aldehyde groups.”
Barczynska-Felusiak 等 - 2021 - Synthesis of the Bacteriostatic Poly(l-Lactide) by DOI: 10.3390/ijms22136950 -
Carbonyl (C=O) confiance 0,9
“Explicit assignment from text.”
Harris 等 - 2022 - Partial Biodegradable Blend with High Stability ag DOI: 10.3390/polym14081541 -
Carbonyl (C=O) confiance 0,9
“Text: 'CPPA (1705 cm-1) ... C=O stretching vibration of the protonated COOH'”
Hussein 等 - 2012 - Herbicide-Intercalated Zinc Layered Hydroxide Nano DOI: 10.3390/ijms13067328
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