What absorbs at 3353 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 3353 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 6 | 6 | 1,0 |
| Carbohydrate | 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
“e and CH stretching of pure CMC at 3353 and 2921 respectively.”
Guben 和 Ege - 2019 - Physico-chemical Effects of Gelatin Addition in Ca DOI: 10.1557/adv.2019.239 -
Hydroxyl (O-H) confianza 1,0
“The band at 3353 is due to stretching vibration of O-H which cmindicates the presence of alcoholic groups in crocin.”
Lee 等 - 2015 - ATR-FTIR and Spectrometric Methods for the Assay o DOI: 10.1080/10942912.2014.923911 -
Carbohydrate confianza 1,0
“The absorbance peaks at cm-1 3353, 2898, 1434, 1382, and 895 are associated with cellulose I.”
Lu 等 - 2020 - One-pot Green Synthesis of Carboxylated Cellulose DOI: 10.1016/j.biortech.2007.04.029 -
Hydroxyl (O-H) confianza 1,0
“Furthermore, Figure 4 shows that no O-H groups in Styrofoam, which was found also Furthermore, Figure 4 shows that no O-H groups in Styrofoam, which was found cm-1) in brackish water Styrofoam, where peaks (3353 began to form with low inten”
Interaction between Styrofoam and Microalgae Spirulina platensis in Brackish Water System DOI: 10.3390/toxics9030043 -
Hydroxyl (O-H) confianza 1,0
“cm-1 at 450 and OH stretching at 3353 In Figure 2d, the absorption peak situated at 450 cm-1 corresponds to the Cu-O stretching and the one at 3353 is due to the OH stretching vibration.”
Green and Traditional Synthesis of Copper Oxide Nanoparticles—Comparative Study DOI: 10.3390/nano10122502 -
Hydroxyl (O-H) confianza 1,0
“LLM confirmed rule peak-group candidate”
Kuen 等 - 2017 - Increased Loading, Efficacy and Sustained Release DOI: 10.3390/nano7110379 -
Hydroxyl (O-H) confianza 1,0
“LLM confirmed rule peak-group candidate”
On the Use of OPEFB-Derived Microcrystalline Cellulose and Nano-Bentonite for Development of Thermoplastic Starch Hybrid Bio-Composites with Improved Performance DOI: 10.3390/polym13060897 -
Hydroxyl (O-H) confianza 1,0
“CMC cm-1, showed a broad absorption band at 3352.62 due to the stretching frequency of -OH PLOSONE|DOI:10.1371/journal.pone.0172727 February28,2017”
Cross-linked #_#x03B2;-cyclodextrin and carboxymethyl cellulose hydrogels for controlled drug delivery of acyclovir DOI: 10.1371/journal.pone.0172727
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