What absorbs at 3294 cm⁻¹ in an FTIR spectrum?
A band near 3294 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 1,0 |
| N h | 1 | 1 | 0,7 |
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
-
Hydroxyl (O-H) confianza 1,0
“Text: '3294 corresponds to OH'”
Sadiqa 等 - 2021 - Biogenic Fabrication, Characterization and Drug Lo DOI: 10.1016/j.xphs.2021.01.034 -
confianza 0,9
“Same as above.”
Jagdale 等 - 2011 - Preparation and Characterization of Metformin Hydr DOI: 10.4103/0975-1483.83758 -
Hydroxyl (O-H) confianza 0,9
“explicit assignment: stretching vibrations characteristic of hydroxyl”
Nazarewicz 等 - 2023 - Effects of Ultrasound Treatment on the Physical an DOI: 10.3390/su15118975 -
confianza 0,9
“Explicit assignment in text”
Pirouz 等 - 2018 - A Novel Adsorbent Magnetic Graphene Oxide Modified DOI: 10.3390/toxins10090361 -
Hydroxyl (O-H) confianza 0,9
“Explicit assignment in text.”
Sultan 等 - 2022 - Ligustrum lucidum Leaf Extract-Assisted Green Synt DOI: 10.3390/ma15051637 -
confianza 0,9
“Explicit assignment: 'broadband with maximum close to 3,294 cm-1 from O-H stretching of the starch polymer'”
Tomas 等 - 2020 - Assessment of Four Portuguese Wheat Landrace Diver DOI: 10.3389/fpls.2020.594977 -
Hydroxyl (O-H) confianza 0,8
“Text: 'position of the OH ... shift ... 3293.82 cm-1'.”
Zimoch-Korzycka 等 - 2015 - Chitosan and CystatinLysozyme Preparation as Prot DOI: 10.1155/2015/139617 -
N h confianza 0,7
“Peak at 3293.57 cm-1 attributed to N-H stretching (amide A).”
Ben Slimane 和 Sadok - 2018 - Collagen from Cartilaginous Fish By-Products for a DOI: 10.3390/md16060211
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