What absorbs at 3069 cm⁻¹ in an FTIR spectrum?
A band near 3069 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 6 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Amide | 2 | 2 | 1,0 |
| N h | 2 | 2 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Aromatic ring | 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
“LLM confirmed rule peak-group candidate”
Nasir 和 Apriani - 2018 - Synthesis and Property of Ag(NP)catechinGelatin DOI: 10.1088/1757-899X/293/1/012004 -
Aromatic ring confiance 1,0
“1S The absorptions at 3069, 3027 and 1578 are series thermal analysis system at a frequency of 1 Hz, the samples corresponded to the benzene rings.”
Wang 等 - 2012 - Controlled network structure and its correlations DOI: 10.1039/c2ra00021k -
Protein confiance 1,0
“In Figure 3b, the peaks at 3357 and 3069 cm-1 were assigned cm-1 and B bands of collagen peptide, respectively.”
Sponges of Carboxymethyl Chitosan Grafted with Collagen Peptides for Wound Healing DOI: 10.3390/ijms20163890 -
confiance 1,0
“The cm-1 band from 3200 to 3400 represents the presence of the peptide bond (N-H stretching) band from 3200 to 3400 cm-1 represents the presence of the peptide bond (N-H stretching) from amide A, as well as the signal at 3069 cm-1 attribute”
3D-Printed Gelatin Methacryloyl-Based Scaffolds with Potential Application in Tissue Engineering DOI: 10.3390/polym13050727 -
Alkyl C-H confiance 1,0
“The addition of toluene on poplar caused three cm-1 cm-1 cm-1 bands including 3069 for C-H stretching, 1497 for C-C stretching, and 728 for C-H out”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345 -
confiance 0,95
“Explicit assignment in text: 'signal at 3069 showing the presence of a C-H bond from the CH functional group belonging to aromatic compounds'.”
Essential Oil and Polyphenolic Compounds of Flourensia cernua Leaves: Chemical Profiling and Functional Properties DOI: 10.3390/agronomy12102274
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