What absorbs at 2908 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 2908 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 8 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 7 | 7 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Chitosan | 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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Chitosan confianza 1,0
“The peak at 2908.04 corresponded to cm(cid:2)1 Chitosan film CeH the stretching, while the band at 1335.74 was OeH the of water.”
Bourtoom 和 Chinnan - 2008 - Preparation and properties of rice starch-chitosan DOI: 10.1016/j.lwt.2007.10.014 -
Alkyl C-H confianza 1,0
“LLM confirmed rule peak-group candidate”
Daniel 等 - 2020 - Citric acid modified cellulose a cost effective a DOI: 10.1080/15567036.2020.1773963 -
Alkyl C-H confianza 1,0
“to C-H asymmetric stretching vibration takes place at 2908 For the doped samples, there is an evident cm-1, shift and significant decline in this band.”
Tea from the drinking to the synthesis of metal complexes and fabrication of PVA based polymer composites with controlled optical band gap DOI: 10.1038/s41598-020-75138-x -
Alkyl C-H confianza 1,0
“C-H asymmetric stretching vibration is associated with a band at 2908 [33], which also in the case of the doped samples is shifted to smaller wave numbers.”
From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps DOI: 10.3390/ijms20163910 -
Alkyl C-H confianza 1,0
“3308 3305 Attributions SPMC_0 SPMC_1 SPMC_2 C-H stretching 2908 2915 2916”
Polymer Composites with 0.98 Transparencies and Small Optical Energy Band Gap Using a Promising Green Methodology: Structural and Optical Properties DOI: 10.3390/polym13101648 -
Alkyl C-H confianza 1,0
“The positive values of PC1 loading in the lipid region (Figure 4B) at 2969 cm-1 (assigned H-CO), to νas of 2941 cm-1 (νas of CH3 [27]), 2908 cm-1 (assigned to νs of CH2 and CH3 of lipid [28]), (C-H 2865 cm-1 stretching [29]), and 2838 cm-1”
FTIR Microspectroscopy for the Assessment of Mycoplasmas in HepG2 Cell Culture DOI: 10.3390/app10113766 -
Alkyl C-H confianza 1,0
“LLM confirmed rule peak-group candidate”
Assessing the Carboxymethylcellulose Copper-Montmorillonite Nanocomposite for Controlling the Infection of Erwinia carotovora in Potato (Solanum tuberosum L.) DOI: 10.3390/nano11030802 -
Aromatic ring confianza 1,0
“imaging maps, where the intensity of the following bands was C-H Alltheitemscategorisedaswoolandcellulosewerenot mapped: 3024 (aromatic stretching vibrations) (b), 2908”
Assessment of microplastic pollution: occurrence and characterisation in Vesijärvi lake and Pikku Vesijärvi pond, Finland DOI: 10.1007/s10661-019-7843-z
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