What absorbs at 3351 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 3351 cm⁻¹ puede apuntar a varios grupos funcionales. A continuación se muestran las asignaciones más probables, clasificadas por cuánta evidencia publicada respalda cada una — cada una trazable a literatura (DOI) y validada de forma cruzada con nuestros más de 130,000 espectros de referencia y grafo de conocimiento.
Backed by 6 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 4 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
| Urea | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
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
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Alkyl C-H confianza 1,0
“In a comparison, the band peaked at 2906 cm-1 can be attributed to presence of OH groups that could be confirmed by the appearance of broad band with a maximum at 3351cm-1 cm-1 C-H stretching in dextran [32,33], since such band was not obse”
Development of Polymer Blend Electrolyte Membranes Based on Chitosan: Dextran with High Ion Transport Properties for EDLC Application DOI: 10.3390/ijms20133369 -
Hydroxyl (O-H) confianza 1,0
“dispersions using sucrose), and etoricoxib and characteristic 3350.7cm-1 (in case of O-H stretching of vibration peaks, 3349.7cm-1 (in case of solid solid dispersions using lactose), 3.3.3.”
Das 等 - 2011 - Solubility and dissolution enhancement of etoricox DOI: 10.5402/2011/819765 -
Hydroxyl (O-H) confianza 1,0
“Compared cm-1 with isoprene, the broad characteristic peak at 3351 was related to the existence of hydroxyl groups in PI-OH (Figure 4b).”
Synthesis and Characterization of Linear Polyisoprene Supramolecular Elastomers Based on Quadruple Hydrogen Bonding DOI: 10.3390/polym12010110 -
N-O bond confianza 1,0
“cm(cid:4)1 The band centered between 3351 and 3332 correspond to the No additional information is available for this paper.”
The long term effect of Olive Mill Wastewater (OMW) on organic matter humification in a semi-arid soil DOI: 10.1016/j.heliyon.2020.e03181 -
Hydroxyl (O-H) confianza 1,0
“and HCA (g), is that the broad band O-H stretching vibration band is shifted at 3351”
Organic Bio-Based Aerogel from Food Waste: Preparation and Hydrophobization DOI: 10.3390/gels8110691 -
Hydroxyl (O-H) confianza 1,0
“LLM confirmed rule peak-group candidate”
Evaluation of Physico-Mechanical Properties on Oil Extracted Ground Coffee Waste Reinforced Polyethylene Composite DOI: 10.3390/polym14214678
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