What absorbs at 2964 cm⁻¹ in an FTIR spectrum?
A band near 2964 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 |
|---|---|---|---|
| Alkyl C-H | 8 | 8 | 1,0 |
| Methyl | 3 | 2 | 0,95 |
| Lipid | 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.
Bibliographie derrière ces attributions
-
Alkyl C-H confiance 1,0
“Text: 'attributed to C-H (alkane) stretching bonds'.”
Wypij 等 - 2022 - Novel Antibacterial, Cytotoxic and Catalytic Activ DOI: 10.4014/jmb.2205.05006 -
confiance 0,9
“Explicit assignment: '2900 and 2964 due to N-H stretches'”
Akram 等 - 2022 - How to Improve Solubility and Dissolution of Irbes DOI: 10.3390/pharmaceutics14112264 -
Alkyl C-H confiance 0,9
“Range 2964-2878 assigned to C-H.”
Chen 等 - 2022 - Tunable Thermo-Responsive Properties of Hydroxybut DOI: 10.3389/fchem.2022.830516 -
Alkyl C-H confiance 0,9
“explicit assignment”
Harwijayanti 等 - 2022 - Physicochemical Characterization and Antibacterial DOI: 10.3390/coatings12050680 -
Alkyl C-H confiance 0,9
“C-H stretch at 2964 cm-1”
Meka 等 - 2012 - Characterization and In Vitro Drug Release Studies DOI: 10.1208/s12249-012-9873-5 -
Alkyl C-H confiance 0,9
“Explicit assignment: CH2, CH3 from lipid groups.”
Thepbandit 等 - 2021 - Identification of Salicylic Acid Mechanism against DOI: 10.3390/pathogens10060652 -
Alkyl C-H confiance 0,9
“Peak at 2964 cm-1 corresponds to C-H antisymmetric stretching vibration.”
Wang 等 - 2019 - Geographical Authentication of Macrohyporia cocos DOI: 10.3390/molecules24071320 -
Methyl confiance 0,8
“CH3 asymmetric stretching.”
Dahham 等 - 2018 - The Influences of Zirconium Dioxide on ENR-25ZrO2 DOI: 10.1088/1742-6596/1019/1/012055
Avez-vous un spectre avec cette bande ?
Téléchargez votre spectre FTIR et obtenez un rapport d＇interprétation complet — attributions de pics avec citations bibliographiques, correspondances de bibliothèque et une chaîne de preuves avec évaluation de la confiance — en quelques secondes.
Interpréter mon spectre