What absorbs at 582 cm⁻¹ in an FTIR spectrum?
A band near 582 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
Réponse rapide
A band near 582 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Metal oxygen | 3 | 3 | 1,0 |
| S eq o | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| C-O single bond | 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.
Matériaux possibles
| Matériel | Pics de support | Groupes chevauchants | Sources citées |
|---|---|---|---|
| chitosan | 582, 1650, 1655 | Amide | 1 |
| Cellulose | 582, 1735, 1650 | Amide | 1 |
| ZnO | 582, 1400, 3430 | Metal oxygen, Amide | 1 |
| Fe3O4 | 582, 2358, 1673 | Metal oxygen, Amide | 1 |
| iron oxide | 582, 1130, 891 | Metal oxygen | 1 |
| Fe3O4 nanoparticles | 582, 1673, 1470 | Metal oxygen, Amide | 1 |
Les matériaux sont affichés uniquement lorsque le même ensemble de littérature soutient cette bande et au moins un pic caractéristique supplémentaire.
Logique du spectre
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 582 cm⁻¹ is usually not enough for material identification by itself.
Utilisation réelle
Ce type de requête est courant dans l＇identification des polymères, le criblage des plastiques inconnus, le dépannage du contrôle qualité, la vérification des matériaux recyclés et l＇examen de l＇attribution des pics appuyée par la littérature.
Erreurs courantes
- Traiter une bande isolée comme preuve d＇un matériau sans vérifier au moins un ou deux pics de support.
- Ignorer le chevauchement : plusieurs groupes fonctionnels peuvent contribuer près du même nombre d＇onde.
- Sauter la validation lorsque des additifs, des mélanges, l＇oxydation ou la contamination peuvent déformer le spectre.
Conseil de vérification
Lorsque l＇ambiguïté persiste, validez l＇hypothèse avec DSC, GC-MS ou TGA, en particulier pour les mélanges, les échantillons dégradés et les polymères chargés.
Bibliographie derrière ces attributions
-
confiance 1,0
“The peak at 582.2 cm is attributed to the Fe-O bond 4”
ENHANCEMENT OF THERMAL IMAGING BY IRON OXIDE NANOPARTICLE – PRELIMINARY STUDY DOI: 10.1016/j.bcab.2018.12.005 -
Amide confiance 1,0
“The FTIR peaks at 1,678 and 1,582 cm-1 were attributed to amide I and amide II of pNIPAm which was also present in CS spectra.”
Qureshi 等 - 2015 - Ethyl acetate Salix alba leaves extract-loaded chi DOI: 10.1080/09205063.2015.1100843 -
confiance 1,0
“The energy band gap of the NPs was observed toexistintherangeof2.95to3.39eVuponvaryingtheconcentrationofSr2+dopant.Thebroadpeaksat437cm-1and582cm-1 correspond to octahedral (B-) metal stretching (Ni-O) and tetrahedral (A-) metal stretching”
Effect of Sr2+ Ion–Substituted Nickel Ferrite Nanoparticles Prepared by a Simple Microwave Combustion Method DOI: 10.1007/s10948-020-05777-8 -
Phosphate (PO4) confiance 1,0
“Vibrations at 582 593 and 606 are attributed to PO cm-1, the υ4 (PO43-) at 570 and 602 cm-1, υ1 (PO43-) at 962 cm-1, and υ3 (PO43-) at 1051 and 4 vibrations (asymmetric O-P-O bending mode) [46,49-51].”
Gavinho 等 - 2023 - An Eco-Friendly Process to Extract Hydroxyapatite DOI: 10.3390/jfb14050279 -
S eq o confiance 1,0
“capacity Moreover, there is an enlarged band with a slight change at 582 cm-1 in the composite 55 removal beads, indicating the sulfonic acid group, due to the combination of the bands at 633 and”
Potential Application of Innovative Aspergillus terreus/ Sodium Alginate Composite Beads as Eco-Friendly and Sustainable Adsorbents for Alizarin Red S Dye: Isotherms and Kinetics Models DOI: 10.3390/microorganisms11051135 -
confiance 1,0
“cm-1 The bands at 582 may be ascribed to the Zn-O bond [20].”
Toteva 等 - 2021 - Pollutants Sorbent Made of Cotton Fabric Modified DOI: 10.3390/ma14123242 -
C-O single bond confiance 0,9
“explicit assignment”
Barzic 等 - 2022 - Cellulose derivativebarium titanate composites wi DOI: 10.21203/rs.3.rs-467926/v1 -
confiance 0,7
“Pairwise indexed to stretching vibrations.”
Nguyen 等 - 2019 - A Facile Synthesis, Characterization, and Photocat DOI: 10.1155/2019/3428681
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