What absorbs at 2974 cm⁻¹ in an FTIR spectrum?
A band near 2974 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 | 6 | 5 | 1,0 |
| Methyl | 2 | 2 | 0,95 |
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
“Assigned in text”
Dubey 和 Dewangan - 2020 - Rational Design and Characterization of Transderma DOI: 10.5530/ijper.54.3s.145 -
confiance 1,0
“Explicit assignment.”
Nadal 等 - 2018 - A Simple and High-yield Synthesis of Hexadecyl Fer DOI: 10.1590/1678-4324-2018170809 -
Methyl confiance 0,95
“Explicit assignment in text: 'bands at 2967 and at 2974 corresponding to the CH3'”
Lach 等 - 2021 - First Identification of the Effects of Low Frequen DOI: 10.4103/jmp.jmp_57_21 -
Methyl confiance 0,9
“Peaks at 2974, 2926, 2885 cm-1 attributed to CH3 and CH2 vibrations.”
Khurana 等 - 2021 - Surface modification of zinc oxide nanoparticles b DOI: 10.1016/j.inoche.2020.108347 -
Alkyl C-H confiance 0,9
“Attributed to C-H stretching vibration of hydrocarbon chains.”
Nikic 等 - 2019 - Arsenic Removal from Water by Green Synthesized Ma DOI: 10.3390/w11122520 -
Alkyl C-H confiance 0,8
“C-H stretching region”
Kiss 等 - 2012 - Structure and reactivity of Au-Rh bimetallic clust DOI: 10.1016/j.cattod.2011.06.002 -
Alkyl C-H confiance 0,8
“C-H stretching at 2974 cm-1”
Sridara 等 - 2020 - Non-Enzymatic Amperometric Glucose Sensor Based on DOI: 10.3390/s20030808 -
confiance 0,7
“characteristic to stretching vibrations”
Dippong 等 - 2017 - THE EFFECT OF POSITIONAL ISOMERISM OF PROPANEDIOL DOI: 10.24193/subbchem.2017.4.02
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