What absorbs at 1380 cm⁻¹ in an FTIR spectrum?
A band near 1380 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 |
|---|---|---|---|
| Alkyl C-H | 7 | 5 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 3 | 3 | 0,9 |
| Carboxyl (COOH) | 2 | 1 | 0,95 |
| Carbonate | 1 | 1 | 0,9 |
| S eq o | 1 | 1 | 0,9 |
| N-O bond | 1 | 1 | 0,9 |
| Phosphate (PO4) | 1 | 1 | 0,9 |
| Lipid | 1 | 1 | 0,8 |
| Carbohydrate | 1 | 1 | 0,7 |
| Fatty acid | 1 | 1 | 0,7 |
| Aromatic ring | 1 | 1 | 0,7 |
| Carbonyl (C=O) | 1 | 1 | 0,7 |
| Boron nitrogen | 1 | 0 | 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
-
C-O single bond confiance 1,0
“The vibration at 1380 is assigned to the C O (cid:4)+ (cid:4)+ (cid:4)+ (cid:4)+ (cid:4)- (cid:4) = + + + + (A 1g) (A 2g) (B 1g) (B 2g) (Eg) mode related to the citrate complex.”
Azam 等 - 2012 - Effect of Mn doping on the structural and optical DOI: 10.1016/j.jallcom.2012.01.072 -
Carboxyl (COOH) confiance 0,95
“Explicit assignment: carboxylate symmetric stretching”
Keshavarz 等 - 2018 - Non-Covalent Supported of L-Proline on Graphene Ox DOI: 10.3390/molecules23020330 -
confiance 0,9
“Explicit assignment: '~1380 and 750 for h-BN phase'.”
Chowdhury 等 - 2004 - Novel electrodeposition route for the synthesis of DOI: 10.1016/j.matlet.2004.05.079 -
C-O single bond confiance 0,9
“Explicit assignment: '1380cm-1 C-O-C'”
Hassan - 2019 - Fourier transform infrared spectroscopy to detect DOI: 10.1080/00387010.2019.1623262 -
Alkyl C-H confiance 0,9
“Part of the same assignment range.”
Olajire 和 Mohammed - 2020 - Green synthesis of nickel oxide nanoparticles and DOI: 10.1016/j.apt.2019.10.012 -
Phosphate (PO4) confiance 0,9
“Explicit assignment: 'absorption peak in 1380 cm-1 which is the characteristic of P=O bonds'.”
Soheyli 等 - 2016 - Optical and structural characterization of quadrup DOI: 10.1142/S0217984916502705 -
N-O bond confiance 0,9
“Strong absorption band at 1380 cm-1 assigned to N-O symmetric stretch.”
Verma 等 - 2008 - Determination of nitrogen dioxide in ambient air e DOI: 10.1016/j.atmosres.2008.03.022 -
Hydroxyl (O-H) confiance 0,9
“Text: '1380 and 1620 corresponded to the bending vibration of -OH and the stretching vibrations of carboxylic groups, hydroxyl groups, phenolic groups, and water'”
Cai 等 - 2019 - Effective Adsorption of Diesel Oil by Crab-Shell-D DOI: 10.3390/ma12020236
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