What absorbs at 1033 cm⁻¹ in an FTIR spectrum?
A band near 1033 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 |
|---|---|---|---|
| C-O single bond | 3 | 3 | 0,9 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Carbohydrate | 2 | 2 | 0,95 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0,9 |
| Siloxane (Si-O-Si) | 1 | 1 | 0,9 |
| C c single bond | 1 | 1 | 0,9 |
| Amide | 1 | 1 | 0,8 |
| Hydroxyl (O-H) | 1 | 1 | 0,7 |
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
-
Phosphate (PO4) confiance 1,0
“stretching vibration of PO3-”
Song 等 - 2022 - Properties of poly(lactic acid)walnut shellhydro DOI: 10.1038/s41598-022-15622-8 -
Carbohydrate confiance 0,95
“Explicit assignment: 'band referred to cellulose (CE) at 1033 cm-1'.”
Pro 等 - 2021 - A Spectroscopic Approach to Evaluate the Effects o DOI: 10.3390/agriculture11040321 -
C c single bond confiance 0,9
“Text: 'The two bands at 1033 cm-1 and 1082 were assigned to be the C-C stretching' and 'fitting band at 1033 signed as O-C-C-O-T'.”
Guo 等 - 2018 - Observation of conformational changes in ethylene DOI: 10.1063/1.4995975 -
confiance 0,9
“Text: 'peak at 1033 ... corresponded to the stretching of C6-O-H'”
Li 等 - 2014 - Characterization of Digestion Resistance Sweet Pot DOI: 10.4314/tjpr.v13i9.3 -
confiance 0,9
“explicit assignment”
Watanabe 等 - 2013 - Effect of high CO2 concentration on char formation DOI: 10.1016/j.proci.2012.07.048 -
confiance 0,9
“PO derived bands at 1033 cm-1”
Broda 等 - 2019 - Synthesis and selected physicochemical properties DOI: 10.5277/ppmp19073 -
C-O single bond confiance 0,9
“Attributed to stretching mode of C-O.”
Carranza-Nunez 等 - 2021 - Physicochemical Characterization of Natural Fibers DOI: 10.1016/j.carbpol.2013.01.074 -
Siloxane (Si-O-Si) confiance 0,9
“Text: '1,033 ... Si-O-Si stretching vibrations'”
Deka 和 Karak - 2009 - Vegetable Oil-Based Hyperbranched Thermosetting Po DOI: 10.1007/s11671-009-9313-y
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