What absorbs at 406 cm⁻¹ in an FTIR spectrum?
A band near 406 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 4 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Nitrile | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
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
-
Amide confiance 1,0
“The band 221 cm-1 at 406 region was due to C-N stretching of aromatic phenols.”
Two potential uses for silver nanoparticles coated with Solanum nigrum unripe fruit extract: Biofilm inhibition and photodegradation of dye effluent DOI: 10.1016/j.micpath.2017.08.039 -
Nitrile confiance 1,0
“The FTIR spectrum displays one isotope-sensitive mode at sensitive vibrational modes at 488 and 406 cm-1 2151 We assign the peak at 488 to the stretching mode, the peak at 406 to CtN FesCtNsCu cm-1 bending mode, and the peak at 2151 to the”
Pinakoulaki 等 - 2003 - The active site structure of heme a(3)(3+)-C N-Cu- DOI: 10.1021/jp034326g -
Carbohydrate confiance 1,0
“406 and the carbohydrates band superimposed on the silica band (~900 - 1200 For details”
Cointet 等 - 2019 - Lipids in benthic diatoms A new suitable screenin DOI: 10.1016/j.algal.2019.101425 -
Phosphate (PO4) confiance 1,0
“bending P-O bands were measured at ~406, °C.”
Ponnusamy 等 - 2022 - Synthesis, Structural, and Mechanical Behavior of DOI: 10.3390/ma15082924
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