What absorbs at 2924 cm⁻¹ in an FTIR spectrum?
A band near 2924 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
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 40 | 39 | 1,0 |
| Methyl | 3 | 3 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Lipid | 1 | 1 | 0,9 |
La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.
Literatura detrás de estas asignaciones
-
Carbohydrate confianza 1,0
“Explicit assignment: 'peaks at 3380 and 2924 suggested the presence of carbohydrates'”
Phetrit 等 - 2020 - Characterization of Nipa Palm's (Nypa fruticans Wu DOI: 10.1007/s12355-019-00756-3 -
Alkyl C-H confianza 1,0
“Text: 'alkyl C-H (~2924 cm-1'”
Lahlali 等 - 2017 - Evaluating Changes in Cell-Wall Components Associa DOI: 10.3390/ijms18102058 -
Methyl confianza 1,0
“Explicit assignment: 'methyl and methylene groups ... peaks at ... 2924'”
Li 等 - 2020 - Preparation and Properties of Self-Healing Polyure DOI: 10.1021/acsomega.9b03082 -
Alkyl C-H confianza 1,0
“Stretching vibration of methylene (CH2) as per text.”
Salleh 等 - 2014 - Chemical Characterization of Stabilized and Carbon DOI: 10.1051/matecconf/20141304014 -
Alkyl C-H confianza 0,95
“Explicit assignment: 'the band located at 2924 is attributed to the C-H stretching vibration'.”
Manikandan 等 - 2018 - Properties of sol gel synthesized ZnO nanoparticle DOI: 10.1007/s10854-018-8981-8 -
Alkyl C-H confianza 0,95
“Explicit assignment in text.”
Suys 等 - 2022 - ATR-FTIR Biosensors for Antibody Detection and Ana DOI: 10.3390/ijms231911895 -
Alkyl C-H confianza 0,9
“Explicit assignment.”
Bhatlu 等 - 2023 - Preparation of Breadfruit Leaf Biochar for the App DOI: 10.1155/2023/7369027 -
Alkyl C-H confianza 0,9
“Explicit assignment: CH asymmetric stretch at ~2924 cm-1.”
Grace 等 - 2022 - Response to nutrient variation on lipid productivi DOI: 10.1016/j.saa.2021.120830
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