What absorbs at 569 cm⁻¹ in an FTIR spectrum?
A band near 569 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 3 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Metal oxygen | 3 | 2 | 0.9 |
| Phosphate (PO4) | 2 | 1 | 0.9 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Metal oxygen confidence 0.9
“Explicit assignment: 'Fe-O stretching 569.02'.”
Dada 等 - 2020 - Bottom-up approach synthesis of core-shell nanosca DOI: 10.1016/j.mex.2020.100976 -
Metal oxygen confidence 0.9
“Attributed to Fe-O stretching in tetrahedral site.”
Dantas 等 - 2016 - Synthesis, Characterization and Catalytic Performa DOI: 10.1590/S1517-707620160004.0099 -
Phosphate (PO4) confidence 0.8
“Intense band characteristic of phosphate groups.”
Yi 等 - 2013 - A carbonate-fluoride defect model for carbonate-ri DOI: 10.2138/am.2013.4445
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